Merge branch 'main' into fix/b5-t6-a4-metadata-lww

main removed the serial_test dependency from e2e_test (#6344); the test
uses an ephemeral-port RustFSTestEnvironment and needs no cross-test
serialization, so the attribute and import go.

crates/e2e_test/src/lib.rs

@@ -61,6 +61,11 @@ mod get_codec_streaming_compat_test;
 #[cfg(test)]
 mod version_id_regression_test;
 
+// Receiver-side replication LWW (rustfs/backlog#1953): stale inbound
+// replication metadata must not overwrite a newer local category state.
+#[cfg(test)]
+mod replication_lww_receiver_test;
+
 // Data usage regression tests
 #[cfg(test)]
 mod data_usage_test;

crates/e2e_test/src/replication_lww_receiver_test.rs

@@ -0,0 +1,150 @@
+#![cfg(test)]
+// Copyright 2024 RustFS Team
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+//! Receiver-side replication LWW over the wire (rustfs/backlog#1953, audit
+//! A4/P1-6).
+//!
+//! In an active-active topology both sites' metadata states arrive at the
+//! peer as authorized replication PUTs carrying per-category source
+//! timestamps (`x-rustfs-source-replication-tagging-timestamp` header
+//! family). Before the fix the receiver applied them unconditionally, so a
+//! stale delivery overwrote a newer local state and the two sites diverged
+//! permanently while both reported COMPLETED. This test drives one live
+//! `rustfs` server with simulated inbound replication PUTs for the same
+//! object version and asserts the newer tagging state wins regardless of
+//! delivery order, while a stale delivery still succeeds at the object level
+//! (a failure would loop through MRF re-delivering the stale value).
+
+use crate::common::{RustFSTestEnvironment, init_logging};
+use aws_sdk_s3::Client;
+use aws_sdk_s3::primitives::ByteStream;
+use aws_sdk_s3::types::{BucketVersioningStatus, VersioningConfiguration};
+
+type TestResult = Result<(), Box<dyn std::error::Error + Send + Sync>>;
+
+const HDR_SOURCE_REPLICATION_REQUEST: &str = "x-rustfs-source-replication-request";
+const HDR_SOURCE_VERSION_ID: &str = "x-rustfs-source-version-id";
+const HDR_SOURCE_MTIME: &str = "x-rustfs-source-mtime";
+const HDR_SOURCE_TAGGING_TIMESTAMP: &str = "x-rustfs-source-replication-tagging-timestamp";
+
+const SOURCE_MTIME: &str = "2026-01-01T00:00:00Z";
+const T_STALE: &str = "2026-01-01T00:00:01Z";
+const T_LOCAL: &str = "2026-02-01T00:00:00Z";
+const T_NEWER: &str = "2026-03-01T00:00:00Z";
+
+/// Simulated inbound authorized replication PUT: same object version, tags and
+/// the source-authored tagging timestamp carried in transport headers.
+async fn inbound_replication_put(
+    client: &Client,
+    bucket: &str,
+    key: &str,
+    version_id: &str,
+    tags: &str,
+    tagging_timestamp: &str,
+) -> TestResult {
+    let version_id = version_id.to_string();
+    let tagging_timestamp = tagging_timestamp.to_string();
+    client
+        .put_object()
+        .bucket(bucket)
+        .key(key)
+        .body(ByteStream::from_static(b"lww-e2e-body"))
+        .tagging(tags)
+        .customize()
+        .mutate_request(move |req| {
+            req.headers_mut().insert(HDR_SOURCE_REPLICATION_REQUEST, "true");
+            req.headers_mut().insert(HDR_SOURCE_VERSION_ID, version_id.clone());
+            req.headers_mut().insert(HDR_SOURCE_MTIME, SOURCE_MTIME);
+            req.headers_mut()
+                .insert(HDR_SOURCE_TAGGING_TIMESTAMP, tagging_timestamp.clone());
+        })
+        .send()
+        .await?;
+    Ok(())
+}
+
+async fn tag_value(client: &Client, bucket: &str, key: &str, version_id: &str, tag_key: &str) -> Option<String> {
+    let tagging = client
+        .get_object_tagging()
+        .bucket(bucket)
+        .key(key)
+        .version_id(version_id)
+        .send()
+        .await
+        .expect("object tagging should be readable");
+    tagging
+        .tag_set()
+        .iter()
+        .find(|tag| tag.key() == tag_key)
+        .map(|tag| tag.value().to_string())
+}
+
+#[tokio::test(flavor = "multi_thread")]
+async fn receiver_lww_keeps_newer_tags_across_delivery_orders() -> TestResult {
+    init_logging();
+    let mut env = RustFSTestEnvironment::new().await?;
+    env.start_rustfs_server(vec![]).await?;
+    let client = env.create_s3_client();
+
+    let bucket = "replication-lww-receiver";
+    let key = "object";
+    client.create_bucket().bucket(bucket).send().await?;
+    client
+        .put_bucket_versioning()
+        .bucket(bucket)
+        .versioning_configuration(
+            VersioningConfiguration::builder()
+                .status(BucketVersioningStatus::Enabled)
+                .build(),
+        )
+        .send()
+        .await?;
+
+    // First delivery establishes version V with tags stamped T_LOCAL.
+    let version_id = uuid::Uuid::new_v4().to_string();
+    inbound_replication_put(&client, bucket, key, &version_id, "site=local", T_LOCAL).await?;
+    assert_eq!(
+        tag_value(&client, bucket, key, &version_id, "site").await.as_deref(),
+        Some("local"),
+        "the first delivery must establish the tagged version"
+    );
+
+    // A stale delivery (older source timestamp) must succeed at the object
+    // level but must NOT overwrite the newer tags.
+    inbound_replication_put(&client, bucket, key, &version_id, "site=stale", T_STALE).await?;
+    assert_eq!(
+        tag_value(&client, bucket, key, &version_id, "site").await.as_deref(),
+        Some("local"),
+        "a stale inbound delivery must not overwrite newer tags (rustfs/backlog#1953)"
+    );
+
+    // A newer delivery still converges the version onto the newest state.
+    inbound_replication_put(&client, bucket, key, &version_id, "site=newer", T_NEWER).await?;
+    assert_eq!(
+        tag_value(&client, bucket, key, &version_id, "site").await.as_deref(),
+        Some("newer"),
+        "a newer inbound delivery must overwrite older tags"
+    );
+
+    client
+        .delete_object()
+        .bucket(bucket)
+        .key(key)
+        .version_id(&version_id)
+        .send()
+        .await?;
+    env.delete_test_bucket(bucket).await.ok();
+    Ok(())
+}

crates/ecstore/src/bucket/replication/replication_resyncer.rs

@@ -3868,6 +3868,7 @@ async fn replicate_object_with_multipart<S: ReplicationObjectIO>(ctx: MultipartR
                 actual_size,
                 object_info.etag.clone().unwrap_or_default(),
                 object_info.mod_time,
+                &put_opts.internal,
             ),
         )
         .await

crates/ecstore/src/bucket/replication/replication_target_boundary.rs

@@ -472,6 +472,7 @@ pub(crate) fn replication_complete_multipart_options(
     actual_size: String,
     source_etag: String,
     source_mtime: Option<OffsetDateTime>,
+    source_internal: &AdvancedPutOptions,
 ) -> PutObjectOptions {
     let mut user_metadata = HashMap::new();
     insert_header_map(&mut user_metadata, SUFFIX_REPLICATION_ACTUAL_OBJECT_SIZE, actual_size);
@@ -484,6 +485,14 @@ pub(crate) fn replication_complete_multipart_options(
             // mtime must degrade to epoch so header() suppresses the header
             // instead of asserting the replication time as the object's mtime.
             source_mtime: source_mtime.unwrap_or(OffsetDateTime::UNIX_EPOCH),
+            // Carry the per-category LWW timestamps on the complete request as
+            // well: the receiver's CompleteMultipartUpload options builder
+            // parses the same headers, so the multipart transport gets the
+            // same receiver-side LWW as the single-PUT transport
+            // (rustfs/backlog#1953). Epoch values keep the headers suppressed.
+            tagging_timestamp: source_internal.tagging_timestamp,
+            retention_timestamp: source_internal.retention_timestamp,
+            legalhold_timestamp: source_internal.legalhold_timestamp,
             replication_status: ReplicationStatusType::Replica,
             replication_request: true,
             ..Default::default()
@@ -663,20 +672,39 @@ mod tests {
     #[test]
     fn replication_complete_multipart_options_sets_actual_size() {
         let source_mtime = OffsetDateTime::from_unix_timestamp(1_716_170_000).expect("valid test timestamp");
+        let source_internal = AdvancedPutOptions {
+            tagging_timestamp: OffsetDateTime::from_unix_timestamp(1_716_170_100).expect("valid test timestamp"),
+            retention_timestamp: OffsetDateTime::from_unix_timestamp(1_716_170_200).expect("valid test timestamp"),
+            legalhold_timestamp: OffsetDateTime::from_unix_timestamp(1_716_170_300).expect("valid test timestamp"),
+            ..Default::default()
+        };
         let options = replication_complete_multipart_options(
             "1024".to_string(),
             "0123456789abcdef0123456789abcdef-3".to_string(),
             Some(source_mtime),
+            &source_internal,
         );
         assert_eq!(options.internal.source_etag, "0123456789abcdef0123456789abcdef-3");
         assert_eq!(options.internal.source_mtime, source_mtime);
 
+        // The complete request must carry the same per-category LWW timestamps
+        // as the initiate request; the receiver reads them from the complete
+        // headers (rustfs/backlog#1953).
+        assert_eq!(options.internal.tagging_timestamp, source_internal.tagging_timestamp);
+        assert_eq!(options.internal.retention_timestamp, source_internal.retention_timestamp);
+        assert_eq!(options.internal.legalhold_timestamp, source_internal.legalhold_timestamp);
+
         // Absent source mtime must degrade to epoch (header suppressed), not
         // the AdvancedPutOptions default of now_utc() — that default would
         // stamp the replication time as the replica's mtime and break the
-        // multipart HEAD convergence.
-        let options_no_mtime = replication_complete_multipart_options("1024".to_string(), String::new(), None);
+        // multipart HEAD convergence. Unset category timestamps stay epoch so
+        // header() keeps suppressing them.
+        let options_no_mtime =
+            replication_complete_multipart_options("1024".to_string(), String::new(), None, &AdvancedPutOptions::default());
         assert_eq!(options_no_mtime.internal.source_mtime.unix_timestamp(), 0);
+        assert_eq!(options_no_mtime.internal.tagging_timestamp.unix_timestamp(), 0);
+        assert_eq!(options_no_mtime.internal.retention_timestamp.unix_timestamp(), 0);
+        assert_eq!(options_no_mtime.internal.legalhold_timestamp.unix_timestamp(), 0);
 
         assert_eq!(
             get_header_map(&options.user_metadata, SUFFIX_REPLICATION_ACTUAL_OBJECT_SIZE).as_deref(),

crates/ecstore/src/cluster/rpc/peer_rest_client.rs

@@ -1089,9 +1089,7 @@ impl PeerRestClient {
                     .await?
                     .max_decoding_message_size(BACKGROUND_HEAL_STATUS_MAX_MESSAGE_SIZE);
                 let response = match client
-                    .background_heal_status(Request::new(BackgroundHealStatusRequest {
-                        protocol_version: rustfs_protos::BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION,
-                    }))
+                    .background_heal_status(Request::new(BackgroundHealStatusRequest::default()))
                     .await
                 {
                     Ok(response) => response.into_inner(),

crates/ecstore/src/io_support/bitrot.rs

@@ -784,24 +784,6 @@ pub(crate) fn create_deferred_bitrot_reader_with_stripe_handle(
 ///
 /// # Returns
 /// A Result containing the BitrotWriterWrapper or an error
-/// Size hint handed to `DiskAPI::create_file` for a bitrot-wrapped shard.
-///
-/// A known length is grown by one checksum per shard so the on-disk file size
-/// matches what the bitrot writer emits. A negative length is the
-/// unknown-size sentinel (`HashReader::SIZE_PRESERVE_LAYER`, used by SSE and
-/// compression) and must be preserved: `RemoteDisk::create_file` forwards it
-/// in the `put_file_stream` query, and the receiver only treats `size > 0` as
-/// a fixed body length when locating the authenticated trailer. Clamping it
-/// to `0` would claim an empty body and misframe the stream. `0` stays `0`
-/// because a genuinely empty object still means an empty body.
-fn bitrot_create_file_size(length: i64, shard_size: usize, checksum_algo: &HashAlgorithm) -> i64 {
-    if length <= 0 {
-        return length;
-    }
-    let length = length as usize;
-    (length.div_ceil(shard_size) * checksum_algo.size() + length) as i64
-}
-
 pub async fn create_bitrot_writer(
     is_inline_buffer: bool,
     disk: Option<&DiskStore>,
@@ -814,7 +796,12 @@ pub async fn create_bitrot_writer(
     let writer = if is_inline_buffer {
         CustomWriter::new_inline_buffer()
     } else if let Some(disk) = disk {
-        let length = bitrot_create_file_size(length, shard_size, &checksum_algo);
+        let length = if length > 0 {
+            let length = length as usize;
+            (length.div_ceil(shard_size) * checksum_algo.size() + length) as i64
+        } else {
+            0
+        };
 
         let file = disk.create_file("", volume, path, length).await?;
         #[cfg(feature = "hotpath")]
@@ -833,25 +820,6 @@ mod tests {
     use rustfs_rio::ChunkReader;
     use std::collections::VecDeque;
 
-    #[test]
-    fn bitrot_create_file_size_grows_known_length_by_checksums() {
-        // 10 bytes over 4-byte shards = 3 shards, each followed by a 32-byte hash.
-        assert_eq!(bitrot_create_file_size(10, 4, &HashAlgorithm::HighwayHash256), 10 + 3 * 32);
-        assert_eq!(bitrot_create_file_size(10, 4, &HashAlgorithm::None), 10);
-    }
-
-    #[test]
-    fn bitrot_create_file_size_keeps_empty_and_unknown_distinct() {
-        assert_eq!(bitrot_create_file_size(0, 4, &HashAlgorithm::HighwayHash256), 0);
-        // SSE/compression streams advertise SIZE_PRESERVE_LAYER (-1); the remote
-        // put_file_stream receiver relies on a non-positive size to parse the auth
-        // trailer from the stream tail, so the sentinel must survive untouched.
-        assert_eq!(
-            bitrot_create_file_size(rustfs_rio::HashReader::SIZE_PRESERVE_LAYER, 4, &HashAlgorithm::HighwayHash256),
-            rustfs_rio::HashReader::SIZE_PRESERVE_LAYER
-        );
-    }
-
     struct TestChunkReader {
         chunks: VecDeque<Bytes>,
     }

crates/ecstore/src/set_disk/ops/multipart.rs

@@ -2318,6 +2318,57 @@ impl crate::storage_api_contracts::multipart::MultipartOperations for SetDisks {
             fi.set_data_moved();
         }
 
+        // Receiver-side LWW (rustfs/backlog#1953): the multipart replication
+        // transport carries the category values at CreateMultipartUpload (in
+        // the staged upload metadata) and the source category timestamps on
+        // the complete request. Read the destination version under the held
+        // object write lock and keep any category this site modified more
+        // recently. Read failures (version absent on first replication, quorum
+        // errors) keep today's overwrite semantics: failing the complete would
+        // loop through MRF, re-delivering the stale value forever.
+        if crate::set_disk::ops::object::replication_lww_applicable(opts)
+            && let Some(version_id) = fi.version_id
+        {
+            match self
+                .get_object_info(
+                    bucket,
+                    object,
+                    &ObjectOptions {
+                        version_id: Some(version_id.to_string()),
+                        no_lock: true,
+                        metadata_cache_safe: false,
+                        versioned: opts.versioned,
+                        version_suspended: opts.version_suspended,
+                        ..Default::default()
+                    },
+                )
+                .await
+            {
+                Ok(existing) => {
+                    let stored = crate::set_disk::ops::object::stored_replication_category_metadata(&existing);
+                    crate::set_disk::ops::object::merge_replication_metadata_lww(&mut fi.metadata, &stored, opts);
+                }
+                // Version absent: first replication of this version, nothing
+                // local to compare — the normal path, not a degraded one.
+                Err(err) if is_err_object_not_found(&err) || is_err_version_not_found(&err) => {}
+                Err(err) => {
+                    // Degraded path: without the stored state the inbound
+                    // metadata is applied unchanged — exactly the overwrite
+                    // LWW exists to prevent — so this must be operator-visible.
+                    warn!(
+                        component = LOG_COMPONENT_ECSTORE,
+                        subsystem = LOG_SUBSYSTEM_SET_DISK,
+                        bucket,
+                        object,
+                        version_id = %version_id,
+                        error = %err,
+                        state = "replication_lww_read_unavailable",
+                        "SetDisk multipart replication LWW read skipped; inbound metadata applied without comparison"
+                    );
+                }
+            }
+        }
+
         for meta in parts_metadatas.iter_mut() {
             if meta.has_valid_erasure_geometry() {
                 meta.size = fi.size;
@@ -7055,6 +7106,97 @@ mod tests {
                 .await
         }
 
+        /// Receiver-side LWW on the multipart replication transport
+        /// (rustfs/backlog#1953): a metadata-only replication of a multipart
+        /// source object rides CreateMultipartUpload (category values in the
+        /// upload metadata) + CompleteMultipartUpload (category timestamps in
+        /// the complete options). A stale inbound tagging timestamp must not
+        /// overwrite a newer locally-tagged destination version.
+        #[tokio::test]
+        #[serial]
+        async fn complete_multipart_upload_stale_replication_tags_keep_local() {
+            use rustfs_utils::http::headers::AMZ_OBJECT_TAGGING;
+            use rustfs_utils::http::{SUFFIX_TAGGING_TIMESTAMP, get_str};
+            use time::format_description::well_known::Rfc3339;
+
+            const T_OLD: &str = "2026-01-01T00:00:00Z";
+            const T_LOCAL: &str = "2026-02-01T00:00:00Z";
+
+            let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+            let bucket = "multipart-replication-lww-bucket";
+            let object = "object";
+            make_bucket_on_all(&disk_stores, bucket).await;
+
+            // Local destination version with newer tags.
+            let version_id = Uuid::new_v4();
+            let mut local_metadata = HashMap::new();
+            local_metadata.insert(AMZ_OBJECT_TAGGING.to_string(), "site=local".to_string());
+            rustfs_utils::http::insert_str(&mut local_metadata, SUFFIX_TAGGING_TIMESTAMP, T_LOCAL.to_string());
+            let mut local_reader = PutObjReader::from_vec(b"local body".to_vec());
+            set_disks
+                .put_object(
+                    bucket,
+                    object,
+                    &mut local_reader,
+                    &ObjectOptions {
+                        versioned: true,
+                        version_id: Some(version_id.to_string()),
+                        user_defined: local_metadata,
+                        // Explicit-version PUTs require the bucket Object Lock snapshot.
+                        object_lock_config_snapshot: Some(Arc::new(crate::set_disk::ObjectLockConfigSnapshot::new(
+                            crate::bucket::metadata_sys::ObjectLockConfigState::ConfirmedAbsent,
+                        ))),
+                        ..Default::default()
+                    },
+                )
+                .await
+                .expect("local versioned put should commit");
+
+            // Inbound replication upload carrying older tags for the same version.
+            let mut inbound_metadata = HashMap::new();
+            inbound_metadata.insert(AMZ_OBJECT_TAGGING.to_string(), "site=remote".to_string());
+            rustfs_utils::http::insert_str(&mut inbound_metadata, SUFFIX_TAGGING_TIMESTAMP, T_OLD.to_string());
+            let create_opts = ObjectOptions {
+                versioned: true,
+                user_defined: inbound_metadata,
+                ..Default::default()
+            };
+            let (upload_id, parts) =
+                stage_upload_with_create_opts(&set_disks, bucket, object, &payload(0x5a), &create_opts).await;
+            rewrite_staged_upload_version_id(&set_disks, bucket, object, &upload_id, Some(version_id)).await;
+
+            let complete_opts = ObjectOptions {
+                versioned: true,
+                replication_request: true,
+                replication_tagging_timestamp: Some(OffsetDateTime::parse(T_OLD, &Rfc3339).expect("test timestamp should parse")),
+                ..Default::default()
+            };
+            set_disks
+                .clone()
+                .complete_multipart_upload(bucket, object, &upload_id, parts, &complete_opts)
+                .await
+                .expect("replication multipart completion should succeed even when a category keeps local values");
+
+            let info = set_disks
+                .get_object_info(
+                    bucket,
+                    object,
+                    &ObjectOptions {
+                        versioned: true,
+                        version_id: Some(version_id.to_string()),
+                        ..Default::default()
+                    },
+                )
+                .await
+                .expect("completed version should be readable");
+            assert_eq!(
+                info.user_tags.as_str(),
+                "site=local",
+                "older inbound multipart tags must not overwrite newer local tags"
+            );
+            assert_eq!(get_str(&info.user_defined, SUFFIX_TAGGING_TIMESTAMP).as_deref(), Some(T_LOCAL));
+        }
+
         #[tokio::test]
         #[serial]
         async fn complete_multipart_upload_assigns_completion_version_id() {

crates/ecstore/src/set_disk/ops/object.rs

@@ -1881,6 +1881,110 @@ fn delete_file_info_with_replication_transport_metadata(fi: &FileInfo) -> FileIn
     transported
 }
 
+/// True when an authorized replication write carries at least one per-category
+/// source timestamp, i.e. receiver-side LWW has something to judge.
+pub(in crate::set_disk) fn replication_lww_applicable(opts: &ObjectOptions) -> bool {
+    opts.replication_request
+        && (opts.replication_tagging_timestamp.is_some()
+            || opts.replication_retention_timestamp.is_some()
+            || opts.replication_legalhold_timestamp.is_some())
+}
+
+/// The stored per-category state of a destination version, as compared by
+/// [`merge_replication_metadata_lww`]. `ObjectInfo::from_file_info`
+/// externalizes tags into `user_tags` (stripping the metadata key), so the
+/// tag value is folded back into map form here.
+pub(in crate::set_disk) fn stored_replication_category_metadata(existing: &ObjectInfo) -> HashMap<String, String> {
+    let mut stored = (*existing.user_defined).clone();
+    if !existing.user_tags.is_empty() {
+        stored.insert(rustfs_utils::http::headers::AMZ_OBJECT_TAGGING.to_string(), (*existing.user_tags).clone());
+    }
+    stored
+}
+
+/// Receiver-side last-writer-wins for authorized replication writes
+/// (rustfs/backlog#1953, audit A4/P1-6). Metadata-only replication reuses the
+/// whole-object transports, so in active-active topologies an inbound write
+/// carries the source's tags / retention / legal hold verbatim and would
+/// otherwise overwrite a category the destination modified more recently —
+/// both sites end up permanently diverged while reporting COMPLETED.
+///
+/// Judged per category, only when the inbound request carries that category's
+/// source timestamp (`ObjectOptions::replication_*_timestamp`):
+/// - stored timestamp newer than inbound: the local category values and
+///   timestamp are kept; the rest of the write proceeds per the inbound
+///   metadata and the object-level result stays successful (failing the write
+///   instead would loop through MRF, re-delivering the stale value forever);
+/// - otherwise the inbound category wins and its internal timestamp key is
+///   pinned to the source-authored time — the PUT path re-stamps the
+///   object-lock timestamps with the receiver's clock
+///   (`parse_object_lock_retention` / `parse_object_lock_legal_hold` insert
+///   `now()` via `eval_metadata`), which would make the replica's clock the
+///   LWW authority and wedge later convergence;
+/// - no stored timestamp (pre-P1-6 data) or no inbound timestamp: the current
+///   overwrite behavior is preserved.
+///
+/// Returns whether `inbound` was modified. Callers must hold the object write
+/// lock so the stored values compared here are the ones being replaced.
+pub(in crate::set_disk) fn merge_replication_metadata_lww(
+    inbound: &mut HashMap<String, String>,
+    existing: &HashMap<String, String>,
+    opts: &ObjectOptions,
+) -> bool {
+    use rustfs_utils::http::headers::{
+        AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER, AMZ_OBJECT_LOCK_MODE_LOWER, AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE_LOWER, AMZ_OBJECT_TAGGING,
+    };
+    use rustfs_utils::http::metadata_compat::{
+        SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, SUFFIX_TAGGING_TIMESTAMP, get_str,
+        remove_str,
+    };
+    use time::format_description::well_known::Rfc3339;
+
+    let categories: [(Option<OffsetDateTime>, &str, &[&str]); 3] = [
+        (opts.replication_tagging_timestamp, SUFFIX_TAGGING_TIMESTAMP, &[AMZ_OBJECT_TAGGING]),
+        (
+            opts.replication_retention_timestamp,
+            SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP,
+            &[AMZ_OBJECT_LOCK_MODE_LOWER, AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE_LOWER],
+        ),
+        (
+            opts.replication_legalhold_timestamp,
+            SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP,
+            &[AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER],
+        ),
+    ];
+
+    let mut changed = false;
+    for (inbound_timestamp, timestamp_suffix, value_keys) in categories {
+        let Some(inbound_timestamp) = inbound_timestamp else { continue };
+        let is_category_value_key = |key: &str| value_keys.iter().any(|value_key| key.eq_ignore_ascii_case(value_key));
+        let stored_timestamp = get_str(existing, timestamp_suffix).and_then(|value| OffsetDateTime::parse(&value, &Rfc3339).ok());
+        if stored_timestamp.is_some_and(|stored| stored > inbound_timestamp) {
+            inbound.retain(|key, _| !is_category_value_key(key));
+            remove_str(inbound, timestamp_suffix);
+            for (key, value) in existing {
+                if is_category_value_key(key) {
+                    inbound.insert(key.clone(), value.clone());
+                }
+            }
+            // Restore the winning timestamp via insert_str, not a verbatim key
+            // copy: a MinIO-written version may carry only the
+            // x-minio-internal- key, and the dual-key invariant requires every
+            // write to produce both keys.
+            if let Some(stored_value) = get_str(existing, timestamp_suffix) {
+                rustfs_utils::http::insert_str(inbound, timestamp_suffix, stored_value);
+            }
+            changed = true;
+        } else if let Ok(source_authored) = inbound_timestamp.format(&Rfc3339)
+            && get_str(inbound, timestamp_suffix).as_deref() != Some(source_authored.as_str())
+        {
+            rustfs_utils::http::insert_str(inbound, timestamp_suffix, source_authored);
+            changed = true;
+        }
+    }
+    changed
+}
+
 impl SetDisks {
     pub(in crate::set_disk) async fn persist_old_data_cleanup_receipts(
         &self,
@@ -2562,6 +2666,22 @@ impl SetDisks {
                         if check_object_lock_for_deletion_with_state(object_lock_config.state(), &existing, false)?.is_some() {
                             return Err(StorageError::PrefixAccessDenied(bucket.to_string(), object.to_string()));
                         }
+                        // Receiver-side LWW (rustfs/backlog#1953): reuse this
+                        // commit-lock read of the destination version so a
+                        // category (tags / retention / legal hold) modified
+                        // more recently on this site is kept instead of being
+                        // overwritten by the inbound replication metadata.
+                        if replication_lww_applicable(opts) {
+                            let stored = stored_replication_category_metadata(&existing);
+                            let mut merged = parts_metadatas[response_metadata_slot].metadata.clone();
+                            if merge_replication_metadata_lww(&mut merged, &stored, opts) {
+                                for (pfi, disk) in parts_metadatas.iter_mut().zip(shuffle_disks.iter()) {
+                                    if disk.is_some() {
+                                        pfi.metadata = merged.clone();
+                                    }
+                                }
+                            }
+                        }
                     }
                     Err(err) if is_err_object_not_found(&err) || is_err_version_not_found(&err) => {}
                     Err(err) => return Err(err),
@@ -8066,6 +8186,357 @@ mod replication_quota_safety_tests {
     }
 }
 
+#[cfg(test)]
+mod replication_lww_tests {
+    //! Receiver-side LWW for authorized replication writes (rustfs/backlog#1953,
+    //! audit A4/P1-6): an inbound replication PUT whose per-category timestamp
+    //! (tags / retention / legal hold) is older than the destination version's
+    //! stored timestamp must keep the local category values instead of
+    //! overwriting them; categories are judged independently and the write
+    //! itself still succeeds.
+
+    use super::hermetic_set_disks_support::hermetic_set_disks_isolated as hermetic_set_disks;
+    use super::*;
+    use crate::storage_api_contracts::object::{ObjectIO as _, ObjectOperations as _};
+    use rustfs_utils::http::headers::{
+        AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER, AMZ_OBJECT_LOCK_MODE_LOWER, AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE_LOWER, AMZ_OBJECT_TAGGING,
+    };
+    use rustfs_utils::http::{
+        SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, SUFFIX_TAGGING_TIMESTAMP, get_str,
+        insert_str,
+    };
+    use time::format_description::well_known::Rfc3339;
+
+    const T_OLD: &str = "2026-01-01T00:00:00Z";
+    const T_LOCAL: &str = "2026-02-01T00:00:00Z";
+    const T_NEW: &str = "2026-03-01T00:00:00Z";
+
+    fn parse_ts(value: &str) -> OffsetDateTime {
+        OffsetDateTime::parse(value, &Rfc3339).expect("test timestamp should parse")
+    }
+
+    async fn make_bucket(disks: &[DiskStore], bucket: &str) {
+        for disk in disks {
+            disk.make_volume(bucket).await.expect("bucket volume should be created");
+        }
+    }
+
+    async fn put_version(set_disks: &Arc<SetDisks>, bucket: &str, object: &str, version_id: &str, opts: &ObjectOptions) {
+        let mut reader = PutObjReader::from_vec(b"lww-body".to_vec());
+        set_disks
+            .put_object(bucket, object, &mut reader, opts)
+            .await
+            .expect("versioned put should commit");
+        assert_eq!(opts.version_id.as_deref(), Some(version_id));
+    }
+
+    fn versioned_opts(version_id: &str, user_defined: HashMap<String, String>) -> ObjectOptions {
+        ObjectOptions {
+            versioned: true,
+            version_id: Some(version_id.to_string()),
+            user_defined,
+            // Explicit-version PUTs require the bucket Object Lock snapshot.
+            object_lock_config_snapshot: Some(Arc::new(ObjectLockConfigSnapshot::new(
+                crate::bucket::metadata_sys::ObjectLockConfigState::ConfirmedAbsent,
+            ))),
+            ..Default::default()
+        }
+    }
+
+    /// Local state: version `version_id` with tags "site=local" stamped `T_LOCAL`.
+    async fn seed_local_tagged_version(set_disks: &Arc<SetDisks>, bucket: &str, object: &str, version_id: &str) {
+        let mut user_defined = HashMap::new();
+        user_defined.insert(AMZ_OBJECT_TAGGING.to_string(), "site=local".to_string());
+        insert_str(&mut user_defined, SUFFIX_TAGGING_TIMESTAMP, T_LOCAL.to_string());
+        put_version(set_disks, bucket, object, version_id, &versioned_opts(version_id, user_defined)).await;
+    }
+
+    fn inbound_tagging_opts(version_id: &str, tags: &str, timestamp: &str) -> ObjectOptions {
+        let mut user_defined = HashMap::new();
+        user_defined.insert(AMZ_OBJECT_TAGGING.to_string(), tags.to_string());
+        insert_str(&mut user_defined, SUFFIX_TAGGING_TIMESTAMP, timestamp.to_string());
+        ObjectOptions {
+            replication_request: true,
+            replication_tagging_timestamp: Some(parse_ts(timestamp)),
+            ..versioned_opts(version_id, user_defined)
+        }
+    }
+
+    async fn version_info(set_disks: &Arc<SetDisks>, bucket: &str, object: &str, version_id: &str) -> ObjectInfo {
+        set_disks
+            .get_object_info(bucket, object, &versioned_opts(version_id, HashMap::new()))
+            .await
+            .expect("version should be readable")
+    }
+
+    #[tokio::test]
+    async fn inbound_stale_tagging_keeps_newer_local_tags() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-tagging-stale";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+        seed_local_tagged_version(&set_disks, bucket, object, &version_id).await;
+
+        put_version(
+            &set_disks,
+            bucket,
+            object,
+            &version_id,
+            &inbound_tagging_opts(&version_id, "site=remote", T_OLD),
+        )
+        .await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(
+            info.user_tags.as_str(),
+            "site=local",
+            "older inbound tags must not overwrite newer local tags"
+        );
+        assert_eq!(
+            get_str(&info.user_defined, SUFFIX_TAGGING_TIMESTAMP).as_deref(),
+            Some(T_LOCAL),
+            "the winning local tagging timestamp must be preserved"
+        );
+    }
+
+    #[tokio::test]
+    async fn inbound_newer_tagging_overwrites_local_tags() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-tagging-newer";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+        seed_local_tagged_version(&set_disks, bucket, object, &version_id).await;
+
+        put_version(
+            &set_disks,
+            bucket,
+            object,
+            &version_id,
+            &inbound_tagging_opts(&version_id, "site=remote", T_NEW),
+        )
+        .await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(
+            info.user_tags.as_str(),
+            "site=remote",
+            "newer inbound tags must overwrite older local tags"
+        );
+        assert_eq!(get_str(&info.user_defined, SUFFIX_TAGGING_TIMESTAMP).as_deref(), Some(T_NEW));
+    }
+
+    #[tokio::test]
+    async fn inbound_wins_when_local_has_no_tagging_timestamp() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-tagging-no-local-ts";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+        // Pre-P1-6 data: local tags without a stored tagging timestamp.
+        let mut user_defined = HashMap::new();
+        user_defined.insert(AMZ_OBJECT_TAGGING.to_string(), "site=local".to_string());
+        put_version(&set_disks, bucket, object, &version_id, &versioned_opts(&version_id, user_defined)).await;
+
+        put_version(
+            &set_disks,
+            bucket,
+            object,
+            &version_id,
+            &inbound_tagging_opts(&version_id, "site=remote", T_OLD),
+        )
+        .await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(
+            info.user_tags.as_str(),
+            "site=remote",
+            "without a local timestamp the inbound category must win (pre-LWW data compatibility)"
+        );
+    }
+
+    #[tokio::test]
+    async fn categories_are_judged_independently() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-category-independent";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+
+        // Local: newer tags (T_LOCAL), older *cleared* retention (T_OLD) —
+        // timestamp key only, the shape a replicated retention clear stores.
+        // (An active local retention would already block the overwrite at the
+        // WORM gate; the LWW-reachable retention states are cleared/expired.)
+        let mut local = HashMap::new();
+        local.insert(AMZ_OBJECT_TAGGING.to_string(), "site=local".to_string());
+        insert_str(&mut local, SUFFIX_TAGGING_TIMESTAMP, T_LOCAL.to_string());
+        insert_str(&mut local, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, T_OLD.to_string());
+        put_version(&set_disks, bucket, object, &version_id, &versioned_opts(&version_id, local)).await;
+
+        // Inbound: older tags (T_OLD), newer retention (T_NEW).
+        let mut inbound = HashMap::new();
+        inbound.insert(AMZ_OBJECT_TAGGING.to_string(), "site=remote".to_string());
+        insert_str(&mut inbound, SUFFIX_TAGGING_TIMESTAMP, T_OLD.to_string());
+        inbound.insert(AMZ_OBJECT_LOCK_MODE_LOWER.to_string(), "COMPLIANCE".to_string());
+        inbound.insert(AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE_LOWER.to_string(), "2028-01-01T00:00:00Z".to_string());
+        insert_str(&mut inbound, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, T_NEW.to_string());
+        let opts = ObjectOptions {
+            replication_request: true,
+            replication_tagging_timestamp: Some(parse_ts(T_OLD)),
+            replication_retention_timestamp: Some(parse_ts(T_NEW)),
+            ..versioned_opts(&version_id, inbound)
+        };
+        put_version(&set_disks, bucket, object, &version_id, &opts).await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(info.user_tags.as_str(), "site=local", "the stale tagging category must keep local values");
+        assert_eq!(
+            info.user_defined.get(AMZ_OBJECT_LOCK_MODE_LOWER).map(String::as_str),
+            Some("COMPLIANCE"),
+            "the newer retention category must be applied in the same write"
+        );
+        assert_eq!(get_str(&info.user_defined, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP).as_deref(), Some(T_NEW));
+    }
+
+    #[tokio::test]
+    async fn inbound_stale_legal_hold_keeps_local_value() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-legalhold-stale";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+
+        // Local: legal hold released (OFF) at T_LOCAL. (A local hold that is
+        // still ON already blocks the overwrite at the WORM gate; the
+        // LWW-reachable divergence is a stale inbound ON resurrecting a hold
+        // that was released more recently on this site.)
+        let mut local = HashMap::new();
+        local.insert(AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER.to_string(), "OFF".to_string());
+        insert_str(&mut local, SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP, T_LOCAL.to_string());
+        put_version(&set_disks, bucket, object, &version_id, &versioned_opts(&version_id, local)).await;
+
+        let mut inbound = HashMap::new();
+        inbound.insert(AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER.to_string(), "ON".to_string());
+        insert_str(&mut inbound, SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP, T_OLD.to_string());
+        let opts = ObjectOptions {
+            replication_request: true,
+            replication_legalhold_timestamp: Some(parse_ts(T_OLD)),
+            ..versioned_opts(&version_id, inbound)
+        };
+        put_version(&set_disks, bucket, object, &version_id, &opts).await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(
+            info.user_defined.get(AMZ_OBJECT_LOCK_LEGAL_HOLD_LOWER).map(String::as_str),
+            Some("OFF"),
+            "a stale inbound legal hold must not resurrect a hold released more recently"
+        );
+        assert_eq!(
+            get_str(&info.user_defined, SUFFIX_OBJECTLOCK_LEGALHOLD_TIMESTAMP).as_deref(),
+            Some(T_LOCAL)
+        );
+    }
+
+    /// Dual-key invariant under LWW: a MinIO-written destination version may
+    /// carry only the x-minio-internal timestamp key; when the local category
+    /// wins, the restored map must still hold BOTH compatibility keys.
+    #[test]
+    fn local_win_restores_both_internal_timestamp_keys_for_minio_only_metadata() {
+        let mut inbound = HashMap::new();
+        inbound.insert(AMZ_OBJECT_TAGGING.to_string(), "site=remote".to_string());
+        insert_str(&mut inbound, SUFFIX_TAGGING_TIMESTAMP, T_OLD.to_string());
+        let existing = HashMap::from([
+            (AMZ_OBJECT_TAGGING.to_string(), "site=local".to_string()),
+            ("X-Minio-Internal-Tagging-Timestamp".to_string(), T_LOCAL.to_string()),
+        ]);
+        let opts = ObjectOptions {
+            replication_request: true,
+            replication_tagging_timestamp: Some(parse_ts(T_OLD)),
+            ..Default::default()
+        };
+
+        assert!(merge_replication_metadata_lww(&mut inbound, &existing, &opts));
+        assert_eq!(inbound.get(AMZ_OBJECT_TAGGING).map(String::as_str), Some("site=local"));
+        assert_eq!(
+            inbound.get("x-rustfs-internal-tagging-timestamp").map(String::as_str),
+            Some(T_LOCAL),
+            "the RustFS twin key must be materialized even when the source version only had the MinIO key"
+        );
+        assert_eq!(inbound.get("x-minio-internal-tagging-timestamp").map(String::as_str), Some(T_LOCAL));
+    }
+
+    /// When the inbound category wins, the stored timestamp must be the
+    /// source-authored one: the PUT path's eval_metadata stamps the
+    /// object-lock timestamps with the receiver's clock
+    /// (`parse_object_lock_retention`), which would otherwise make this
+    /// replica's clock the LWW authority and wedge later convergence.
+    #[tokio::test]
+    async fn inbound_win_pins_stored_timestamp_to_source_authored_value() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-retention-ts-pinned";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+
+        // Local cleared retention at T_OLD.
+        let mut local = HashMap::new();
+        insert_str(&mut local, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, T_OLD.to_string());
+        put_version(&set_disks, bucket, object, &version_id, &versioned_opts(&version_id, local)).await;
+
+        // Inbound newer retention: the source authored T_LOCAL, but the PUT
+        // path's eval_metadata stomped the metadata key with receiver-now
+        // (simulated by T_NEW here).
+        let mut inbound = HashMap::new();
+        inbound.insert(AMZ_OBJECT_LOCK_MODE_LOWER.to_string(), "GOVERNANCE".to_string());
+        inbound.insert(AMZ_OBJECT_LOCK_RETAIN_UNTIL_DATE_LOWER.to_string(), "2028-01-01T00:00:00Z".to_string());
+        insert_str(&mut inbound, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP, T_NEW.to_string());
+        let opts = ObjectOptions {
+            replication_request: true,
+            replication_retention_timestamp: Some(parse_ts(T_LOCAL)),
+            ..versioned_opts(&version_id, inbound)
+        };
+        put_version(&set_disks, bucket, object, &version_id, &opts).await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert_eq!(
+            get_str(&info.user_defined, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP).as_deref(),
+            Some(T_LOCAL),
+            "the stored category timestamp must be the source-authored time, not the receiver's clock"
+        );
+        assert_eq!(info.user_defined.get(AMZ_OBJECT_LOCK_MODE_LOWER).map(String::as_str), Some("GOVERNANCE"));
+    }
+
+    #[tokio::test]
+    async fn newer_local_tag_deletion_survives_stale_inbound_tags() {
+        let (_temp_dirs, disk_stores, set_disks) = hermetic_set_disks(4).await;
+        let bucket = "lww-tagging-deleted";
+        let object = "object";
+        let version_id = Uuid::new_v4().to_string();
+        make_bucket(&disk_stores, bucket).await;
+        // Local DeleteObjectTagging state: no tags, but a newer tagging timestamp.
+        let mut local = HashMap::new();
+        insert_str(&mut local, SUFFIX_TAGGING_TIMESTAMP, T_LOCAL.to_string());
+        put_version(&set_disks, bucket, object, &version_id, &versioned_opts(&version_id, local)).await;
+
+        put_version(
+            &set_disks,
+            bucket,
+            object,
+            &version_id,
+            &inbound_tagging_opts(&version_id, "site=remote", T_OLD),
+        )
+        .await;
+
+        let info = version_info(&set_disks, bucket, object, &version_id).await;
+        assert!(
+            info.user_tags.is_empty(),
+            "a newer local tag deletion must not be resurrected by older inbound tags"
+        );
+        assert_eq!(get_str(&info.user_defined, SUFFIX_TAGGING_TIMESTAMP).as_deref(), Some(T_LOCAL));
+    }
+}
+
 #[cfg(test)]
 mod inline_put_commit_path_tests {
     use super::hermetic_set_disks_support::hermetic_set_disks_isolated as hermetic_set_disks;

crates/heal/src/heal/erasure_healer.rs

@@ -13,10 +13,10 @@
 // limitations under the License.
 
 use crate::heal::{
-    progress::{HealProgress, add_bytes, increment_counter},
+    progress::HealProgress,
     resume::{
-        CheckpointManager, CheckpointObjectOutcome, CheckpointObjectOutcomeRecord, ReplacementTargetIdentity, ResumeManager,
-        ResumeUtils, compose_key, replacement_target_identities_match,
+        CheckpointManager, ReplacementTargetIdentity, ResumeManager, ResumeUtils, compose_key,
+        replacement_target_identities_match,
     },
     storage::{HealStorageAPI, next_heal_listing_token},
     task::{demote_to_debug_when, is_missing_object_dir_heal_result, take_failure_log_sample},
@@ -410,9 +410,6 @@ impl ErasureSetHealer {
                 && state.successful_objects == 0
                 && state.failed_objects == 0
                 && state.skipped_objects == 0
-                && state.skipped_new_versions == 0
-                && state.skipped_ilm_expired == 0
-                && state.processed_bytes == 0
             {
                 // schedule_retry persists the authoritative resume reset before
                 // resetting the checkpoint. Reapply the checkpoint reset after
@@ -477,23 +474,6 @@ impl ErasureSetHealer {
 
         // 2. initialize progress
         self.initialize_progress(buckets, &state).await;
-        let (baseline_known, baseline_count, baseline_size, baseline_generation) = {
-            let baseline = self.progress.read().await;
-            (
-                baseline.baseline_known,
-                baseline.objects_total_count,
-                baseline.objects_total_size,
-                baseline.baseline_generation,
-            )
-        };
-        if baseline_known {
-            resume_manager
-                .set_progress_baseline(baseline_count, baseline_size, baseline_generation)
-                .await?;
-            checkpoint_manager
-                .set_progress_baseline(baseline_count, baseline_size, baseline_generation)
-                .await?;
-        }
 
         // 3. continue from checkpoint
         let current_bucket_index = checkpoint.current_bucket_index;
@@ -503,66 +483,12 @@ impl ErasureSetHealer {
         let mut successful_objects = state.successful_objects;
         let mut failed_objects = state.failed_objects;
         let mut skipped_objects = state.skipped_objects;
-        let checkpoint_has_progress = checkpoint.baseline_known
-            || checkpoint.successful_objects > 0
-            || checkpoint.failed_object_count > 0
-            || checkpoint.skipped_object_count > 0
-            || checkpoint.skipped_new_versions > 0
-            || checkpoint.skipped_ilm_expired > 0
-            || checkpoint.processed_bytes > 0
-            || checkpoint.total_objects > 0
-            || checkpoint.total_bytes > 0
-            || checkpoint.baseline_generation.is_some()
-            || checkpoint.counter_unknown;
-        let checkpoint_generation_mismatch = checkpoint.baseline_known && checkpoint.baseline_generation != baseline_generation;
-        let mut restored_counter_unknown = state.counter_unknown || checkpoint.counter_unknown;
-        if checkpoint_has_progress {
-            successful_objects = checkpoint.successful_objects;
-            failed_objects = checkpoint.failed_object_count;
-            skipped_objects = checkpoint.skipped_object_count;
-            let restored_processed_objects = successful_objects
-                .checked_add(failed_objects)
-                .and_then(|value| value.checked_add(skipped_objects))
-                .and_then(|value| value.checked_add(checkpoint.skipped_new_versions))
-                .and_then(|value| value.checked_add(checkpoint.skipped_ilm_expired));
-            let checkpoint_counter_overflow = restored_processed_objects.is_none();
-            restored_counter_unknown |= checkpoint_counter_overflow;
-            processed_objects = restored_processed_objects.unwrap_or(u64::MAX);
-            let mut progress = self.progress.write().await;
-            progress.objects_scanned = processed_objects;
-            progress.objects_healed = successful_objects;
-            progress.objects_failed = failed_objects;
-            progress.skipped_objects = skipped_objects;
-            progress.skipped_new_versions = checkpoint.skipped_new_versions;
-            progress.skipped_ilm_expired = checkpoint.skipped_ilm_expired;
-            if checkpoint.baseline_known && !checkpoint_generation_mismatch {
-                progress.objects_total_count = checkpoint.total_objects;
-                progress.objects_total_size = checkpoint.total_bytes;
-                progress.baseline_generation = checkpoint.baseline_generation;
-                progress.baseline_known = true;
-            }
-            progress.bytes_processed = checkpoint.processed_bytes;
-            progress.counter_unknown = state.counter_unknown || checkpoint.counter_unknown;
-            progress.refresh_progress_percentage();
-            if checkpoint_generation_mismatch || checkpoint_counter_overflow || progress.counter_unknown {
-                progress.mark_unknown();
-            }
-        }
-        if checkpoint_generation_mismatch {
-            restored_counter_unknown = true;
-        }
-        if restored_counter_unknown {
-            checkpoint_manager.mark_counter_unknown().await?;
-            resume_manager.mark_counter_unknown().await?;
-        }
         let mut failed_buckets = 0u64;
 
         // 4. process remaining buckets
         for (bucket_idx, bucket) in buckets.iter().enumerate().skip(current_bucket_index) {
             // check if completed
             if state.completed_buckets.contains(bucket) {
-                checkpoint_manager.complete_bucket(bucket_idx.saturating_add(1)).await?;
-                current_object_index = 0;
                 continue;
             }
 
@@ -590,42 +516,13 @@ impl ErasureSetHealer {
                 return bucket_result;
             }
 
-            // update progress
-            let progress_snapshot = self.progress.read().await;
-            let bytes_processed = progress_snapshot.bytes_processed;
-            let skipped_new_versions = progress_snapshot.skipped_new_versions;
-            let skipped_ilm_expired = progress_snapshot.skipped_ilm_expired;
-            let counter_unknown = progress_snapshot.counter_unknown;
-            drop(progress_snapshot);
-            // The checkpoint is the recovery authority for object progress.
-            // Publish its counters and fence before the resume summary so a
-            // crash between the two stores cannot make recovery select newer
-            // summary bytes with an older checkpoint ledger.
-            if counter_unknown {
-                checkpoint_manager.mark_counter_unknown().await?;
-            }
-            checkpoint_manager
-                .update_progress(successful_objects, failed_objects, skipped_objects, bytes_processed)
-                .await?;
-            checkpoint_manager
-                .set_skipped_version_counts(skipped_new_versions, skipped_ilm_expired)
-                .await?;
+            // update checkpoint position
             checkpoint_manager.update_position(bucket_idx, current_object_index).await?;
+
+            // update progress
             resume_manager
-                .update_progress_with_bytes(
-                    processed_objects,
-                    successful_objects,
-                    failed_objects,
-                    skipped_objects,
-                    bytes_processed,
-                )
+                .update_progress(processed_objects, successful_objects, failed_objects, skipped_objects)
                 .await?;
-            resume_manager
-                .set_skipped_version_counts(skipped_new_versions, skipped_ilm_expired)
-                .await?;
-            if counter_unknown {
-                resume_manager.mark_counter_unknown().await?;
-            }
 
             // check cancel status
             if self.cancel_token.is_cancelled() {
@@ -645,7 +542,6 @@ impl ErasureSetHealer {
             match bucket_result {
                 Ok(_) => {
                     resume_manager.complete_bucket(bucket).await?;
-                    checkpoint_manager.complete_bucket(bucket_idx.saturating_add(1)).await?;
                     debug!(
                         target: "rustfs::heal::erasure_healer",
                         event = EVENT_HEAL_ERASURE_BUCKET_STATE,
@@ -671,9 +567,7 @@ impl ErasureSetHealer {
                         error = %e,
                         "Erasure set bucket heal failed"
                     );
-                    // A single durable cursor and ledger cannot safely preserve
-                    // this bucket while processing a later one.
-                    break;
+                    // continue to next bucket, do not interrupt the whole process
                 }
             }
 
@@ -881,49 +775,20 @@ impl ErasureSetHealer {
 
                 // Per-version dedup identity — the single canonical key.
                 let key = compose_key(&item.name, item.version_id.as_deref());
-                if checkpoint.processed_objects.contains(&key)
-                    || checkpoint.failed_objects.contains(&key)
-                    || checkpoint.skipped_objects.contains(&key)
-                {
+                if checkpoint.processed_objects.contains(&key) || checkpoint.skipped_objects.contains(&key) {
                     continue;
                 }
 
                 if should_skip_new_version(item.mod_time_unix_nanos, started_at_secs) {
-                    let counter_ok = increment_counter(processed_objects);
+                    checkpoint_manager.add_processed_object(key).await?;
+                    *processed_objects = processed_objects.saturating_add(1);
                     completed_in_page = completed_in_page.saturating_add(1);
                     counter!("rustfs_heal_skipped_new_versions_total").increment(1);
-                    let (outcome_record, counter_unknown) = {
+                    {
                         let mut progress = self.progress.write().await;
                         progress.record_skipped_new_version();
                         progress.set_current_object(Some(format!("skipped_new: {bucket}/{}", item.name)));
-                        progress.update_object_progress(
-                            *processed_objects,
-                            *successful_objects,
-                            *failed_objects,
-                            *skipped_objects,
-                            bytes_processed,
-                        );
-                        if !counter_ok {
-                            progress.mark_unknown();
-                        }
-                        (
-                            CheckpointObjectOutcomeRecord {
-                                object: key,
-                                outcome: CheckpointObjectOutcome::Processed,
-                                successful: progress.objects_healed,
-                                failed: progress.objects_failed,
-                                skipped: progress.skipped_objects,
-                                bytes: progress.bytes_processed,
-                                skipped_new_versions: progress.skipped_new_versions,
-                                skipped_ilm_expired: progress.skipped_ilm_expired,
-                                counter_unknown: progress.counter_unknown,
-                            },
-                            progress.counter_unknown,
-                        )
-                    };
-                    checkpoint_manager.record_object_outcome(outcome_record).await?;
-                    if counter_unknown {
-                        resume_manager.mark_counter_unknown().await?;
+                        progress.update_progress(*processed_objects, *successful_objects, *failed_objects, bytes_processed);
                     }
                     debug!(
                         target: "rustfs::heal::erasure_healer",
@@ -955,41 +820,15 @@ impl ErasureSetHealer {
                         )
                         .await?
                 {
-                    let counter_ok = increment_counter(processed_objects);
+                    checkpoint_manager.add_processed_object(key).await?;
+                    *processed_objects = processed_objects.saturating_add(1);
                     completed_in_page = completed_in_page.saturating_add(1);
                     counter!("rustfs_heal_skipped_ilm_expired_total").increment(1);
-                    let (outcome_record, counter_unknown) = {
+                    {
                         let mut progress = self.progress.write().await;
                         progress.record_skipped_ilm_expired();
                         progress.set_current_object(Some(format!("skipped_ilm: {bucket}/{}", item.name)));
-                        progress.update_object_progress(
-                            *processed_objects,
-                            *successful_objects,
-                            *failed_objects,
-                            *skipped_objects,
-                            bytes_processed,
-                        );
-                        if !counter_ok {
-                            progress.mark_unknown();
-                        }
-                        (
-                            CheckpointObjectOutcomeRecord {
-                                object: key,
-                                outcome: CheckpointObjectOutcome::Processed,
-                                successful: progress.objects_healed,
-                                failed: progress.objects_failed,
-                                skipped: progress.skipped_objects,
-                                bytes: progress.bytes_processed,
-                                skipped_new_versions: progress.skipped_new_versions,
-                                skipped_ilm_expired: progress.skipped_ilm_expired,
-                                counter_unknown: progress.counter_unknown,
-                            },
-                            progress.counter_unknown,
-                        )
-                    };
-                    checkpoint_manager.record_object_outcome(outcome_record).await?;
-                    if counter_unknown {
-                        resume_manager.mark_counter_unknown().await?;
+                        progress.update_progress(*processed_objects, *successful_objects, *failed_objects, bytes_processed);
                     }
                     debug!(
                         target: "rustfs::heal::erasure_healer",
@@ -1115,11 +954,11 @@ impl ErasureSetHealer {
 
             while let Some((key, object, version_id, result)) = page_tasks.next().await {
                 let (object_size, result) = result;
-                let mut telemetry_unknown = false;
-                let checkpoint_outcome = match result {
+                match result {
                     Ok(true) => {
-                        telemetry_unknown |= !increment_counter(successful_objects);
-                        telemetry_unknown |= !add_bytes(&mut bytes_processed, object_size);
+                        *successful_objects += 1;
+                        bytes_processed = bytes_processed.saturating_add(object_size);
+                        checkpoint_manager.add_processed_object(key).await?;
                         debug!(
                             target: "rustfs::heal::erasure_healer",
                             event = EVENT_HEAL_ERASURE_OBJECT_STATE,
@@ -1132,11 +971,11 @@ impl ErasureSetHealer {
                             state = "healed",
                             "Erasure set object healed"
                         );
-                        CheckpointObjectOutcome::Processed
                     }
                     Ok(false) => {
-                        telemetry_unknown |= !increment_counter(successful_objects);
-                        telemetry_unknown |= !add_bytes(&mut bytes_processed, object_size);
+                        checkpoint_manager.add_processed_object(key).await?;
+                        *successful_objects += 1;
+                        bytes_processed = bytes_processed.saturating_add(object_size);
                         debug!(
                             target: "rustfs::heal::erasure_healer",
                             event = EVENT_HEAL_ERASURE_OBJECT_STATE,
@@ -1149,12 +988,12 @@ impl ErasureSetHealer {
                             state = "missing_treated_as_ok",
                             "Erasure set missing object treated as ok"
                         );
-                        CheckpointObjectOutcome::Processed
                     }
                     Err(err @ Error::TaskCancelled) | Err(err @ Error::TaskTimeout) => return Err(err),
                     Err(Error::TransientSkip { message }) => {
-                        telemetry_unknown |= !increment_counter(skipped_objects);
-                        telemetry_unknown |= !add_bytes(&mut bytes_processed, object_size);
+                        *skipped_objects += 1;
+                        bytes_processed = bytes_processed.saturating_add(object_size);
+                        checkpoint_manager.add_skipped_object(key).await?;
                         demote_to_debug_when!(!take_failure_log_sample(&mut transient_skip_samples_logged), warn, target: "rustfs::heal::erasure_healer", {
                             event = EVENT_HEAL_ERASURE_OBJECT_STATE,
                             component = LOG_COMPONENT_HEAL,
@@ -1167,11 +1006,11 @@ impl ErasureSetHealer {
                             error = %message,
                             "Erasure set object heal skipped due to transient error"
                         });
-                        CheckpointObjectOutcome::Skipped
                     }
                     Err(err) => {
-                        telemetry_unknown |= !increment_counter(failed_objects);
-                        telemetry_unknown |= !add_bytes(&mut bytes_processed, object_size);
+                        *failed_objects += 1;
+                        bytes_processed = bytes_processed.saturating_add(object_size);
+                        checkpoint_manager.add_failed_object(key).await?;
                         demote_to_debug_when!(!take_failure_log_sample(&mut failure_samples_logged), warn, target: "rustfs::heal::erasure_healer", {
                             event = EVENT_HEAL_ERASURE_OBJECT_STATE,
                             component = LOG_COMPONENT_HEAL,
@@ -1184,43 +1023,15 @@ impl ErasureSetHealer {
                             error = %err,
                             "Erasure set object heal failed"
                         });
-                        CheckpointObjectOutcome::Failed
                     }
-                };
+                }
 
-                telemetry_unknown |= !increment_counter(processed_objects);
+                *processed_objects += 1;
                 completed_in_page += 1;
-                let (outcome_record, counter_unknown) = {
+                {
                     let mut progress = self.progress.write().await;
                     progress.set_current_object(Some(format!("{bucket}/{object}")));
-                    progress.update_object_progress(
-                        *processed_objects,
-                        *successful_objects,
-                        *failed_objects,
-                        *skipped_objects,
-                        bytes_processed,
-                    );
-                    if telemetry_unknown {
-                        progress.mark_unknown();
-                    }
-                    (
-                        CheckpointObjectOutcomeRecord {
-                            object: key,
-                            outcome: checkpoint_outcome,
-                            successful: progress.objects_healed,
-                            failed: progress.objects_failed,
-                            skipped: progress.skipped_objects,
-                            bytes: progress.bytes_processed,
-                            skipped_new_versions: progress.skipped_new_versions,
-                            skipped_ilm_expired: progress.skipped_ilm_expired,
-                            counter_unknown: progress.counter_unknown,
-                        },
-                        progress.counter_unknown,
-                    )
-                };
-                checkpoint_manager.record_object_outcome(outcome_record).await?;
-                if counter_unknown {
-                    resume_manager.mark_counter_unknown().await?;
+                    progress.update_progress(*processed_objects, *successful_objects, *failed_objects, bytes_processed);
                 }
 
                 if completed_in_page.is_multiple_of(100) {
@@ -1230,22 +1041,16 @@ impl ErasureSetHealer {
 
             *current_object_index = global_obj_idx;
 
-            // Persist the checkpoint ledger and page position before exposing
-            // the next resume cursor. A crash before cursor publication keeps
-            // the page identities available for exact-once replay.
-            checkpoint_manager.advance_page(bucket_index, *current_object_index).await?;
+            // Persist the authoritative cursor FIRST (points at the next page
+            // boundary), then prune the per-version dedup sets. Both are
+            // idempotent under crash: heal_object re-heals safely.
+            let next_cursor = if is_truncated { next_token.clone() } else { None };
+            resume_manager.set_resume_cursor(next_cursor.clone()).await?;
+            checkpoint_manager.complete_page(bucket_index, *current_object_index).await?;
             // Check if there are more pages
             if !is_truncated {
                 break;
             }
-            continuation_token = next_heal_listing_token(bucket, "", next_token, is_truncated)?;
-            if continuation_token.is_none() {
-                // A truncated page without a continuation token is terminal.
-                // Retain its ledger until bucket completion is durable.
-                break;
-            }
-            resume_manager.set_resume_cursor(continuation_token.clone()).await?;
-            checkpoint_manager.prune_completed_page().await?;
 
             // Anti-loop guard: an empty page reported as truncated cannot advance
             // the cursor (there is no last identity to move past), so treat it as a
@@ -1264,6 +1069,12 @@ impl ErasureSetHealer {
                 )));
             }
             previous_page_last = page_last;
+
+            continuation_token = next_heal_listing_token(bucket, "", next_token, is_truncated)?;
+            if continuation_token.is_none() {
+                // Truncated but no continuation token: treat as end of listing.
+                break;
+            }
         }
 
         Ok(())
@@ -1272,66 +1083,10 @@ impl ErasureSetHealer {
     /// initialize progress tracking
     async fn initialize_progress(&self, _buckets: &[String], state: &crate::heal::resume::ResumeState) {
         let mut progress = self.progress.write().await;
-        let existing_baseline = (
-            progress.objects_total_count,
-            progress.objects_total_size,
-            progress.baseline_generation,
-            progress.progress_state,
-            progress.baseline_known,
-        );
-        let baseline_generation_mismatch =
-            state.baseline_known && existing_baseline.4 && state.baseline_generation != existing_baseline.2;
-        let use_persisted_baseline = state.baseline_known && !baseline_generation_mismatch;
-        progress.objects_scanned = state.processed_objects;
+        progress.objects_scanned = state.total_objects;
         progress.objects_healed = state.successful_objects;
         progress.objects_failed = state.failed_objects;
-        progress.skipped_objects = state.skipped_objects;
-        progress.skipped_new_versions = state.skipped_new_versions;
-        progress.skipped_ilm_expired = state.skipped_ilm_expired;
-        progress.bytes_processed = state.processed_bytes;
-        progress.counter_unknown = state.counter_unknown;
-        if use_persisted_baseline
-            || existing_baseline.0 > 0
-            || existing_baseline.1 > 0
-            || existing_baseline.2.is_some()
-            || existing_baseline.4
-        {
-            progress.objects_total_count = if use_persisted_baseline {
-                state.total_objects
-            } else {
-                existing_baseline.0
-            };
-            progress.objects_total_size = if use_persisted_baseline {
-                state.total_bytes
-            } else {
-                existing_baseline.1
-            };
-            progress.baseline_generation = if use_persisted_baseline {
-                state.baseline_generation
-            } else {
-                existing_baseline.2
-            };
-            progress.baseline_known = use_persisted_baseline
-                || existing_baseline.0 > 0
-                || existing_baseline.1 > 0
-                || existing_baseline.2.is_some()
-                || existing_baseline.4;
-        }
-        progress.progress_state = if use_persisted_baseline
-            || existing_baseline.0 > 0
-            || existing_baseline.1 > 0
-            || existing_baseline.2.is_some()
-            || existing_baseline.4
-        {
-            crate::heal::progress::HealProgressState::Running
-        } else {
-            crate::heal::progress::HealProgressState::Indeterminate
-        };
-        if baseline_generation_mismatch || state.counter_unknown {
-            progress.mark_unknown();
-        }
-        progress.ledger_complete = false;
-        progress.refresh_progress_percentage();
+        progress.bytes_processed = 0; // Resume state tracks object counts, not byte counters.
         progress.start_time = UNIX_EPOCH.checked_add(Duration::from_secs(state.start_time));
         progress.last_update_time = UNIX_EPOCH.checked_add(Duration::from_secs(state.last_update));
         progress.set_current_object(state.current_object.clone());
@@ -1509,8 +1264,8 @@ mod resume_loop_tests {
     };
     use crate::heal::progress::HealProgress;
     use crate::heal::resume::{
-        CheckpointManager, CheckpointObjectOutcome, CheckpointObjectOutcomeRecord, RESUME_CHECKPOINT_FILE,
-        ReplacementTargetIdentity, ResumeDeleteFailure, ResumeManager, ResumeUtils, compose_key,
+        CheckpointManager, RESUME_CHECKPOINT_FILE, ReplacementTargetIdentity, ResumeDeleteFailure, ResumeManager, ResumeUtils,
+        compose_key,
     };
     use crate::heal::storage::{HealLifecycleExpiryContext, HealListItem, HealObjectInfo, HealStorageAPI};
     use crate::heal::storage_api::status::BucketInfo;
@@ -1650,7 +1405,6 @@ mod resume_loop_tests {
         list_include_lifecycle_object_info: Mutex<Vec<bool>>,
         replacement_target_identity_sequences: Mutex<VecDeque<Vec<ReplacementTargetIdentity>>>,
         fail_listing: AtomicBool,
-        fail_listing_buckets: Mutex<HashSet<String>>,
     }
 
     impl FakeStorage {
@@ -1687,9 +1441,6 @@ mod resume_loop_tests {
         fn fail_listing(&self) {
             self.fail_listing.store(true, Ordering::SeqCst);
         }
-        fn fail_bucket_listing(&self, bucket: &str) {
-            self.fail_listing_buckets.lock().unwrap().insert(bucket.to_string());
-        }
     }
 
     #[async_trait::async_trait]
@@ -1780,7 +1531,7 @@ mod resume_loop_tests {
         }
         async fn list_objects_for_heal_page(
             &self,
-            bucket: &str,
+            _bucket: &str,
             _prefix: &str,
             continuation_token: Option<&str>,
             include_lifecycle_object_info: bool,
@@ -1789,7 +1540,7 @@ mod resume_loop_tests {
                 .lock()
                 .unwrap()
                 .push(include_lifecycle_object_info);
-            if self.fail_listing.load(Ordering::SeqCst) || self.fail_listing_buckets.lock().unwrap().contains(bucket) {
+            if self.fail_listing.load(Ordering::SeqCst) {
                 return Err(Error::other("injected listing failure"));
             }
             let key = continuation_token.map(str::to_string);
@@ -2167,49 +1918,6 @@ mod resume_loop_tests {
         assert!(state.completed_buckets.is_empty(), "the failed bucket must remain resumable");
     }
 
-    #[tokio::test]
-    async fn bucket_failure_stops_before_a_later_bucket_checkpoint() {
-        let env = make_env().await;
-        let task_id = ResumeUtils::generate_task_id();
-        let buckets = vec!["a".to_string(), "b".to_string()];
-        let resume = ResumeManager::new(
-            env.healer.disk.clone(),
-            task_id.clone(),
-            "erasure_set".to_string(),
-            "pool_0_set_0".to_string(),
-            buckets.clone(),
-        )
-        .await
-        .unwrap();
-        let checkpoint = CheckpointManager::new(env.healer.disk.clone(), task_id.clone())
-            .await
-            .unwrap();
-        env.storage.fail_bucket_listing("a");
-        for _ in 0..3 {
-            assert!(resume.schedule_retry().await.unwrap());
-        }
-
-        env.healer
-            .execute_heal_with_resume(&buckets, "pool_0_set_0", &resume, &checkpoint)
-            .await
-            .expect_err("the first bucket failure must keep the pass incomplete");
-        let persisted = checkpoint.get_checkpoint().await;
-        assert_eq!(persisted.current_bucket_index, 0);
-        assert!(resume.get_state().await.completed_buckets.is_empty());
-
-        let resumed = ResumeManager::load_from_disk(env.healer.disk.clone(), &task_id)
-            .await
-            .unwrap();
-        let checkpoint = CheckpointManager::load_from_disk(env.healer.disk.clone(), &task_id)
-            .await
-            .unwrap();
-        env.healer
-            .execute_heal_with_resume(&buckets, "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect_err("recovery must retry the earlier failed bucket");
-        assert!(!resumed.get_state().await.completed);
-    }
-
     #[tokio::test]
     async fn completed_resume_state_is_not_selected_for_a_new_heal() {
         let env = make_env().await;
@@ -2399,175 +2107,8 @@ mod resume_loop_tests {
         let mut names: Vec<String> = env.storage.calls().into_iter().map(|(n, _)| n).collect();
         names.sort();
         assert_eq!(names, vec!["a", "b", "c", "d"], "every object exactly once, none dropped/doubled");
-        // Keep the final page cursor until the outer loop durably completes the
-        // bucket, so a crash can replay only this page against its identities.
-        assert_eq!(env.resume.resume_cursor().await, Some("t1".to_string()));
-    }
-
-    #[tokio::test]
-    async fn persisted_failure_waits_for_the_bounded_retry_after_page_replay() {
-        let env = make_env().await;
-        env.storage.set_page(
-            None,
-            Page {
-                items: vec![item("object", Some("v1"), false)],
-                next: None,
-                truncated: false,
-            },
-        );
-        env.checkpoint
-            .record_object_outcome(CheckpointObjectOutcomeRecord {
-                object: compose_key("object", Some("v1")),
-                outcome: CheckpointObjectOutcome::Failed,
-                successful: 0,
-                failed: 1,
-                skipped: 0,
-                bytes: 0,
-                skipped_new_versions: 0,
-                skipped_ilm_expired: 0,
-                counter_unknown: false,
-            })
-            .await
-            .unwrap();
-        env.checkpoint.advance_page(0, 1).await.unwrap();
-
-        let resumed = ResumeManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        let checkpoint = CheckpointManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-
-        env.healer
-            .execute_heal_with_resume(&["b".to_string()], "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect_err("the persisted failure must schedule a bounded retry");
-        assert!(
-            env.storage.calls().is_empty(),
-            "the failed identity must not be repeated in the same pass"
-        );
-
-        env.healer
-            .execute_heal_with_resume(&["b".to_string()], "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect("the bounded retry must heal the object");
-        assert_eq!(env.storage.calls(), vec![("object".to_string(), Some("v1".to_string()))]);
-        let state = resumed.get_state().await;
-        assert_eq!(state.successful_objects, 1);
-        assert_eq!(state.failed_objects, 0);
-    }
-
-    #[tokio::test]
-    async fn final_page_crash_replays_only_the_retained_page_identities() {
-        let env = make_env().await;
-        env.storage.set_page(
-            None,
-            Page {
-                items: vec![item("first", Some("v1"), false)],
-                next: Some("final-page".to_string()),
-                truncated: true,
-            },
-        );
-        env.storage.set_page(
-            Some("final-page"),
-            Page {
-                items: vec![item("last", Some("v1"), false)],
-                next: None,
-                truncated: false,
-            },
-        );
-
-        let (processed, successful, failed, skipped, result) = run(&env).await;
-        result.expect("the bucket pass must finish before the simulated crash");
-        assert_eq!((processed, successful, failed, skipped), (2, 2, 0, 0));
-
-        let resumed = ResumeManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        let checkpoint = CheckpointManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        env.healer
-            .execute_heal_with_resume(&["b".to_string()], "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect("the retained final-page ledger must make recovery exact");
-
-        assert_eq!(
-            env.storage.calls(),
-            vec![
-                ("first".to_string(), Some("v1".to_string())),
-                ("last".to_string(), Some("v1".to_string()))
-            ]
-        );
-        let state = resumed.get_state().await;
-        assert_eq!(state.successful_objects, 2);
-        assert_eq!(state.processed_objects, 2);
-    }
-
-    #[tokio::test]
-    async fn truncated_page_without_token_retains_its_replay_ledger() {
-        let env = make_env().await;
-        env.storage.set_page(
-            None,
-            Page {
-                items: vec![item("object", Some("v1"), false)],
-                next: None,
-                truncated: true,
-            },
-        );
-
-        let (processed, successful, failed, skipped, result) = run(&env).await;
-        result.expect("the tokenless truncated page is a terminal page");
-        assert_eq!((processed, successful, failed, skipped), (1, 1, 0, 0));
-
-        let resumed = ResumeManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        let checkpoint = CheckpointManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        env.healer
-            .execute_heal_with_resume(&["b".to_string()], "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect("terminal-page recovery must not replay a durable identity");
-
-        assert_eq!(env.storage.calls(), vec![("object".to_string(), Some("v1".to_string()))]);
-        let state = resumed.get_state().await;
-        assert_eq!(state.successful_objects, 1);
-        assert_eq!(state.processed_objects, 1);
-    }
-
-    #[tokio::test]
-    async fn completed_bucket_reconciles_its_final_page_checkpoint_after_crash() {
-        let env = make_env().await;
-        env.storage.set_page(
-            None,
-            Page {
-                items: vec![item("object", Some("v1"), false)],
-                next: None,
-                truncated: false,
-            },
-        );
-
-        let (_, _, _, _, result) = run(&env).await;
-        result.expect("the bucket pass must finish before the simulated crash");
-        env.resume.complete_bucket("b").await.unwrap();
-
-        let resumed = ResumeManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        let checkpoint = CheckpointManager::load_from_disk(env.healer.disk.clone(), &env.task_id)
-            .await
-            .unwrap();
-        env.healer
-            .execute_heal_with_resume(&["b".to_string()], "pool_0_set_0", &resumed, &checkpoint)
-            .await
-            .expect("recovery must finish the checkpoint transition without replaying the bucket");
-
-        assert_eq!(env.storage.calls(), vec![("object".to_string(), Some("v1".to_string()))]);
-        let checkpoint = checkpoint.get_checkpoint().await;
-        assert_eq!(checkpoint.current_bucket_index, 1);
-        assert!(checkpoint.processed_objects.is_empty());
+        // Final page not truncated => cursor cleared.
+        assert_eq!(env.resume.resume_cursor().await, None);
     }
 
     #[tokio::test]

crates/heal/src/heal/manager.rs

@@ -2011,11 +2011,34 @@ impl HealManager {
             return None;
         }
 
-        let mut progresses = Vec::with_capacity(active_tasks.len());
+        let mut snapshot = HealProgress::default();
         for task in active_tasks {
-            progresses.push(task.get_progress().await);
+            let progress = task.get_progress().await;
+            snapshot.objects_scanned = snapshot.objects_scanned.saturating_add(progress.objects_scanned);
+            snapshot.objects_healed = snapshot.objects_healed.saturating_add(progress.objects_healed);
+            snapshot.objects_failed = snapshot.objects_failed.saturating_add(progress.objects_failed);
+            snapshot.skipped_new_versions = snapshot.skipped_new_versions.saturating_add(progress.skipped_new_versions);
+            snapshot.skipped_ilm_expired = snapshot.skipped_ilm_expired.saturating_add(progress.skipped_ilm_expired);
+            snapshot.objects_total_count = snapshot.objects_total_count.saturating_add(progress.objects_total_count);
+            snapshot.objects_total_size = snapshot.objects_total_size.saturating_add(progress.objects_total_size);
+            snapshot.bytes_processed = snapshot.bytes_processed.saturating_add(progress.bytes_processed);
+            snapshot.start_time = match (snapshot.start_time, progress.start_time) {
+                (Some(current), Some(next)) => Some(current.min(next)),
+                (None, next) => next,
+                (current, None) => current,
+            };
+            snapshot.last_update_time = match (snapshot.last_update_time, progress.last_update_time) {
+                (Some(current), Some(next)) => Some(current.max(next)),
+                (None, next) => next,
+                (current, None) => current,
+            };
+            if progress.current_object.is_some() {
+                snapshot.current_object = progress.current_object;
+            }
         }
-        crate::heal::progress::aggregate_heal_progress(progresses)
+        snapshot.refresh_progress_percentage();
+        snapshot.refresh_estimated_completion_time();
+        Some(snapshot)
     }
 }
 

crates/heal/src/heal/progress.rs

@@ -15,91 +15,15 @@
 use serde::{Deserialize, Serialize};
 use std::time::{Duration, SystemTime};
 
-pub(crate) fn stable_generation(parts: &[&[u8]]) -> u64 {
-    let mut hash = 0xcbf29ce484222325u64;
-    for part in parts {
-        for byte in (part.len() as u64).to_be_bytes().into_iter().chain(part.iter().copied()) {
-            hash ^= u64::from(byte);
-            hash = hash.wrapping_mul(0x100000001b3);
-        }
-    }
-    hash
-}
-
-#[cfg(test)]
-mod stable_generation_tests {
-    use super::stable_generation;
-
-    #[test]
-    fn stable_generation_has_a_fixed_vector() {
-        assert_eq!(stable_generation(&[b"rustfs", b"heal", b"42"]), 11_007_672_338_488_385_056);
-    }
-}
-
-pub(crate) fn increment_counter(counter: &mut u64) -> bool {
-    match counter.checked_add(1) {
-        Some(next) => {
-            *counter = next;
-            true
-        }
-        None => {
-            *counter = u64::MAX;
-            false
-        }
-    }
-}
-
-pub(crate) fn add_bytes(total: &mut u64, amount: u64) -> bool {
-    match total.checked_add(amount) {
-        Some(next) => {
-            *total = next;
-            true
-        }
-        None => {
-            *total = u64::MAX;
-            false
-        }
-    }
-}
-
-#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
+#[derive(Debug, Default, Clone, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase")]
-pub enum HealProgressKind {
-    #[default]
-    Unknown,
-    Stage,
-    ObjectSweep,
-}
-
-/// Whether the object ledger can produce a meaningful percentage.
-///
-/// A zero-valued baseline is not a completed scan: it means that no complete
-/// usage snapshot was available.  Keep this state explicit so callers do not
-/// mistake the legacy `0.0` wire value for a measured zero-percent result.
-#[derive(Debug, Default, Clone, Copy, PartialEq, Eq, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase")]
-pub enum HealProgressState {
-    #[default]
-    Unknown,
-    Indeterminate,
-    Running,
-    Completed,
-}
-
-#[derive(Debug, Default, Clone, PartialEq, Serialize, Deserialize)]
-#[serde(default, rename_all = "camelCase")]
 pub struct HealProgress {
-    #[serde(default)]
-    pub kind: HealProgressKind,
     /// Objects scanned
     pub objects_scanned: u64,
     /// Objects healed
     pub objects_healed: u64,
     /// Objects failed
     pub objects_failed: u64,
-    /// Versions deferred for a later retry pass.
-    #[serde(default)]
-    pub skipped_objects: u64,
     /// Versions skipped because they were written after this heal started
     pub skipped_new_versions: u64,
     /// Versions skipped because lifecycle already selected them for expiry
@@ -120,38 +44,11 @@ pub struct HealProgress {
     pub last_update_time: Option<SystemTime>,
     /// Estimated completion time
     pub estimated_completion_time: Option<SystemTime>,
-    /// Current stage number. Stage updates are intentionally independent from
-    /// the object ledger below.
-    #[serde(default)]
-    pub stage_current: u64,
-    /// Number of stages in the current task.
-    #[serde(default)]
-    pub stage_total: u64,
-    /// Explicitly distinguishes a missing usage baseline from measured 0%.
-    #[serde(default)]
-    pub progress_state: HealProgressState,
-    /// True only after the task's durable completion ledger was committed.
-    #[serde(default)]
-    pub ledger_complete: bool,
-    /// Generation of the usage snapshot used for the baseline, if available.
-    #[serde(default)]
-    pub baseline_generation: Option<u64>,
-    /// Whether the baseline was explicitly observed.  This is separate from
-    /// the counters so a known empty scope (0 objects, 0 bytes) is not
-    /// confused with a legacy snapshot that omitted the baseline fields.
-    #[serde(default)]
-    pub baseline_known: bool,
-    /// Internal telemetry fence set when an aggregate counter overflows or
-    /// becomes inconsistent.  It prevents a later refresh from fabricating a
-    /// percentage from the poisoned values.
-    #[serde(default)]
-    pub counter_unknown: bool,
 }
 
 impl HealProgress {
     pub fn new() -> Self {
         Self {
-            kind: HealProgressKind::Unknown,
             start_time: Some(SystemTime::now()),
             last_update_time: Some(SystemTime::now()),
             ..Default::default()
@@ -159,87 +56,12 @@ impl HealProgress {
     }
 
     pub fn update_progress(&mut self, scanned: u64, healed: u64, failed: u64, bytes: u64) {
-        self.update_object_sweep_progress(scanned, healed, failed, bytes);
-    }
-
-    pub fn update_object_sweep_progress(&mut self, scanned: u64, healed: u64, failed: u64, bytes: u64) {
-        self.kind = HealProgressKind::ObjectSweep;
         self.objects_scanned = scanned;
         self.objects_healed = healed;
         self.objects_failed = failed;
         self.bytes_processed = bytes;
         self.last_update_time = Some(SystemTime::now());
 
-        let explicit_skipped = match self.skipped_new_versions.checked_add(self.skipped_ilm_expired) {
-            Some(value) => value,
-            None => {
-                self.mark_unknown();
-                0
-            }
-        };
-        let skipped = healed
-            .checked_add(failed)
-            .and_then(|value| value.checked_add(explicit_skipped))
-            .and_then(|value| scanned.checked_sub(value))
-            .unwrap_or(0);
-        self.update_object_progress(scanned, healed, failed, skipped, bytes);
-    }
-
-    /// Update task stage progress without modifying object counters.
-    pub fn update_stage(&mut self, current: u64, total: u64) {
-        let object_sweep_active = matches!(self.kind, HealProgressKind::ObjectSweep);
-        if !object_sweep_active {
-            self.kind = HealProgressKind::Stage;
-        }
-        self.ledger_complete = false;
-        self.stage_current = current.min(total);
-        self.stage_total = total;
-        if object_sweep_active {
-            self.last_update_time = Some(SystemTime::now());
-            self.refresh_progress_percentage();
-            return;
-        }
-        self.progress_state = if total == 0 {
-            HealProgressState::Indeterminate
-        } else {
-            HealProgressState::Running
-        };
-        self.progress_percentage = if total == 0 {
-            0.0
-        } else {
-            (current as f64 / total as f64 * 100.0).min(100.0)
-        };
-        self.last_update_time = Some(SystemTime::now());
-    }
-
-    /// Update the disjoint object ledger. `scanned` is the number of terminal
-    /// object outcomes and must equal healed + failed + deferred skipped plus
-    /// the two terminal skip classes. Overflow is a corrupt/unknown counter
-    /// state, not a reason to abort a completed heal.
-    pub fn update_object_progress(&mut self, scanned: u64, healed: u64, failed: u64, skipped: u64, bytes: u64) {
-        self.kind = HealProgressKind::ObjectSweep;
-        // `skipped` is the transient/deferred class.  The two explicit skip
-        // counters are terminal classifications too, so include them in the
-        // same ledger without making callers maintain a second aggregate.
-        let outcomes = healed
-            .checked_add(failed)
-            .and_then(|value| value.checked_add(skipped))
-            .and_then(|value| value.checked_add(self.skipped_new_versions))
-            .and_then(|value| value.checked_add(self.skipped_ilm_expired));
-        self.objects_scanned = scanned;
-        self.objects_healed = healed;
-        self.objects_failed = failed;
-        self.skipped_objects = skipped;
-        self.bytes_processed = bytes;
-        self.last_update_time = Some(SystemTime::now());
-        self.ledger_complete = false;
-        if outcomes != Some(scanned) {
-            // Telemetry corruption must not abort a heal.  Preserve the
-            // counters for diagnostics, but do not derive a percentage from a
-            // double-counted or overflowing ledger.
-            self.mark_unknown();
-            return;
-        }
         self.refresh_progress_percentage();
         self.refresh_estimated_completion_time();
     }
@@ -247,88 +69,50 @@ impl HealProgress {
     pub fn set_total_baseline(&mut self, objects_total_count: u64, objects_total_size: u64) {
         self.objects_total_count = objects_total_count;
         self.objects_total_size = objects_total_size;
-        self.baseline_known = true;
         self.last_update_time = Some(SystemTime::now());
         self.refresh_progress_percentage();
         self.refresh_estimated_completion_time();
     }
 
-    pub fn set_total_baseline_with_generation(&mut self, objects_total_count: u64, objects_total_size: u64, generation: u64) {
-        self.baseline_generation = Some(generation);
-        self.set_total_baseline(objects_total_count, objects_total_size);
-    }
-
     pub fn record_skipped_new_version(&mut self) {
-        let Some(next) = self.skipped_new_versions.checked_add(1) else {
-            self.mark_unknown();
-            return;
-        };
-        self.skipped_new_versions = next;
+        self.skipped_new_versions = self.skipped_new_versions.saturating_add(1);
         self.last_update_time = Some(SystemTime::now());
         self.refresh_progress_percentage();
         self.refresh_estimated_completion_time();
     }
 
     pub fn record_skipped_ilm_expired(&mut self) {
-        let Some(next) = self.skipped_ilm_expired.checked_add(1) else {
-            self.mark_unknown();
-            return;
-        };
-        self.skipped_ilm_expired = next;
+        self.skipped_ilm_expired = self.skipped_ilm_expired.saturating_add(1);
         self.last_update_time = Some(SystemTime::now());
         self.refresh_progress_percentage();
         self.refresh_estimated_completion_time();
     }
 
-    fn completed_for_baseline(&self) -> Option<u64> {
+    fn completed_for_baseline(&self) -> u64 {
         self.objects_healed
-            .checked_add(self.objects_failed)?
-            .checked_add(self.skipped_objects)?
-            .checked_add(self.skipped_new_versions)?
-            .checked_add(self.skipped_ilm_expired)
+            .saturating_add(self.objects_failed)
+            .saturating_add(self.skipped_new_versions)
+            .saturating_add(self.skipped_ilm_expired)
     }
 
     pub(crate) fn refresh_progress_percentage(&mut self) {
-        if self.ledger_complete {
-            self.progress_state = HealProgressState::Completed;
-            self.progress_percentage = 100.0;
-            return;
-        }
-        if self.counter_unknown {
-            self.progress_state = HealProgressState::Unknown;
-            self.progress_percentage = 0.0;
-            return;
-        }
-        if !self.baseline_known {
-            self.progress_state = HealProgressState::Indeterminate;
-            self.progress_percentage = 0.0;
-            self.estimated_completion_time = None;
-            return;
-        }
         if self.objects_total_size > 0 {
             self.progress_percentage = ((self.bytes_processed as f64 / self.objects_total_size as f64) * 100.0).min(100.0);
-            self.progress_percentage = self.progress_percentage.min(99.999);
-            self.progress_state = HealProgressState::Running;
             return;
         }
         if self.objects_total_count > 0 {
-            let Some(completed) = self.completed_for_baseline() else {
-                self.progress_state = HealProgressState::Unknown;
-                self.progress_percentage = 0.0;
-                return;
-            };
+            let completed = self.completed_for_baseline();
             self.progress_percentage = ((completed as f64 / self.objects_total_count as f64) * 100.0).min(100.0);
-            self.progress_percentage = self.progress_percentage.min(99.999);
-            self.progress_state = HealProgressState::Running;
             return;
         }
-        if self.baseline_known {
-            self.progress_state = HealProgressState::Running;
-            self.progress_percentage = 0.0;
-            return;
+
+        let total = self
+            .objects_scanned
+            .saturating_add(self.objects_healed)
+            .saturating_add(self.objects_failed);
+        if total > 0 {
+            self.progress_percentage = (self.objects_healed as f64 / total as f64) * 100.0;
         }
-        self.progress_state = HealProgressState::Indeterminate;
-        self.progress_percentage = 0.0;
     }
 
     pub fn set_current_object(&mut self, object: Option<String>) {
@@ -341,11 +125,7 @@ impl HealProgress {
             self.estimated_completion_time = None;
             return;
         };
-        if self.is_completed()
-            || self.progress_percentage <= 0.0
-            || self.progress_percentage >= 100.0
-            || self.bytes_processed == 0
-        {
+        if self.is_completed() || !(0.0..100.0).contains(&self.progress_percentage) || self.bytes_processed == 0 {
             self.estimated_completion_time = None;
             return;
         }
@@ -362,39 +142,18 @@ impl HealProgress {
     }
 
     pub fn is_completed(&self) -> bool {
-        self.ledger_complete
-    }
-
-    /// Mark telemetry unknown while allowing the underlying heal operation to
-    /// continue.  This is used for corrupt/overflowing counters at the
-    /// observability boundary; it must never turn a successful heal into an
-    /// execution error.
-    pub fn mark_unknown(&mut self) {
-        self.counter_unknown = true;
-        self.progress_state = HealProgressState::Unknown;
-        self.ledger_complete = false;
-        self.progress_percentage = 0.0;
-        self.estimated_completion_time = None;
-        self.last_update_time = Some(SystemTime::now());
-    }
-
-    /// Mark the object ledger terminal only after the enclosing task has
-    /// committed all durable resume state and cleanup fences.
-    pub fn mark_completed(&mut self) {
-        let telemetry_unknown = self.counter_unknown || self.progress_state == HealProgressState::Unknown;
-        self.ledger_complete = true;
-        if !telemetry_unknown {
-            self.progress_state = HealProgressState::Completed;
+        if self.progress_percentage >= 100.0 {
+            return true;
         }
-        self.progress_percentage = 100.0;
-        self.last_update_time = Some(SystemTime::now());
-        self.estimated_completion_time = None;
+        if self.objects_total_count > 0 || self.objects_total_size > 0 {
+            return false;
+        }
+
+        self.objects_scanned > 0 && self.objects_healed.saturating_add(self.objects_failed) >= self.objects_scanned
     }
 
     pub fn get_success_rate(&self) -> f64 {
-        let Some(total) = self.objects_healed.checked_add(self.objects_failed) else {
-            return 0.0;
-        };
+        let total = self.objects_healed + self.objects_failed;
         if total > 0 {
             (self.objects_healed as f64 / total as f64) * 100.0
         } else {
@@ -403,101 +162,6 @@ impl HealProgress {
     }
 }
 
-pub fn aggregate_heal_progress(progresses: impl IntoIterator<Item = HealProgress>) -> Option<HealProgress> {
-    let mut snapshot = HealProgress::default();
-    let mut found = false;
-    let mut has_object_sweep = false;
-    let mut all_object_baselines_known = true;
-    let mut baseline_generation = None;
-    let mut baseline_generation_consistent = true;
-    let mut all_ledgers_complete = true;
-    let mut counter_overflow = false;
-
-    for progress in progresses {
-        found = true;
-        let object_sweep = matches!(progress.kind, HealProgressKind::ObjectSweep);
-        has_object_sweep |= object_sweep;
-        all_ledgers_complete &= progress.ledger_complete;
-        if object_sweep {
-            all_object_baselines_known &= progress.baseline_known;
-            match baseline_generation {
-                None => baseline_generation = Some(progress.baseline_generation),
-                Some(generation) => baseline_generation_consistent &= generation == progress.baseline_generation,
-            }
-        }
-        counter_overflow |= progress.counter_unknown || matches!(progress.progress_state, HealProgressState::Unknown);
-        for (target, value) in [
-            (&mut snapshot.objects_scanned, progress.objects_scanned),
-            (&mut snapshot.objects_healed, progress.objects_healed),
-            (&mut snapshot.objects_failed, progress.objects_failed),
-            (&mut snapshot.skipped_objects, progress.skipped_objects),
-            (&mut snapshot.skipped_new_versions, progress.skipped_new_versions),
-            (&mut snapshot.skipped_ilm_expired, progress.skipped_ilm_expired),
-            (&mut snapshot.objects_total_count, progress.objects_total_count),
-            (&mut snapshot.objects_total_size, progress.objects_total_size),
-            (&mut snapshot.bytes_processed, progress.bytes_processed),
-            (&mut snapshot.stage_current, progress.stage_current),
-            (&mut snapshot.stage_total, progress.stage_total),
-        ] {
-            match target.checked_add(value) {
-                Some(sum) => *target = sum,
-                None => {
-                    *target = u64::MAX;
-                    counter_overflow = true;
-                }
-            }
-        }
-        snapshot.start_time = match (snapshot.start_time, progress.start_time) {
-            (Some(current), Some(next)) => Some(current.min(next)),
-            (None, next) => next,
-            (current, None) => current,
-        };
-        snapshot.last_update_time = match (snapshot.last_update_time, progress.last_update_time) {
-            (Some(current), Some(next)) => Some(current.max(next)),
-            (None, next) => next,
-            (current, None) => current,
-        };
-        if progress.current_object.is_some() {
-            snapshot.current_object = progress.current_object;
-        }
-    }
-
-    if !found {
-        return None;
-    }
-
-    snapshot.kind = if has_object_sweep {
-        HealProgressKind::ObjectSweep
-    } else {
-        HealProgressKind::Stage
-    };
-    snapshot.baseline_known = has_object_sweep && all_object_baselines_known && baseline_generation_consistent;
-    snapshot.baseline_generation = if snapshot.baseline_known && baseline_generation_consistent {
-        baseline_generation.flatten()
-    } else {
-        None
-    };
-    snapshot.ledger_complete = all_ledgers_complete;
-    snapshot.counter_unknown = counter_overflow;
-    if counter_overflow {
-        snapshot.progress_state = HealProgressState::Unknown;
-        snapshot.progress_percentage = if snapshot.ledger_complete { 100.0 } else { 0.0 };
-    } else if snapshot.ledger_complete {
-        snapshot.progress_state = HealProgressState::Completed;
-        snapshot.progress_percentage = 100.0;
-    } else if has_object_sweep {
-        snapshot.refresh_progress_percentage();
-    } else if snapshot.stage_total == 0 {
-        snapshot.progress_state = HealProgressState::Indeterminate;
-        snapshot.progress_percentage = 0.0;
-    } else {
-        snapshot.progress_state = HealProgressState::Running;
-        snapshot.progress_percentage = ((snapshot.stage_current as f64 / snapshot.stage_total as f64) * 100.0).min(99.999);
-    }
-    snapshot.refresh_estimated_completion_time();
-    Some(snapshot)
-}
-
 #[derive(Debug, Clone, Serialize, Deserialize)]
 pub struct HealStatistics {
     /// Total heal tasks
@@ -566,7 +230,6 @@ mod tests {
         assert_eq!(progress.objects_scanned, 0);
         assert_eq!(progress.objects_healed, 0);
         assert_eq!(progress.objects_failed, 0);
-        assert_eq!(progress.skipped_objects, 0);
         assert_eq!(progress.skipped_new_versions, 0);
         assert_eq!(progress.skipped_ilm_expired, 0);
         assert_eq!(progress.objects_total_count, 0);
@@ -587,8 +250,10 @@ mod tests {
         assert_eq!(progress.objects_healed, 8);
         assert_eq!(progress.objects_failed, 2);
         assert_eq!(progress.bytes_processed, 1024);
-        assert_eq!(progress.progress_state, HealProgressState::Indeterminate);
-        assert_eq!(progress.progress_percentage, 0.0);
+        // Progress percentage should be calculated based on healed/total
+        // total = scanned + healed + failed = 10 + 8 + 2 = 20
+        // healed/total = 8/20 = 0.4 = 40%
+        assert!((progress.progress_percentage - 40.0).abs() < 0.001);
         assert!(progress.last_update_time.is_some());
     }
 
@@ -597,8 +262,7 @@ mod tests {
         let mut progress = HealProgress::new();
         progress.start_time = Some(SystemTime::now() - Duration::from_secs(10));
 
-        progress.set_total_baseline(100, 16384);
-        progress.update_progress(25, 25, 0, 4096);
+        progress.update_progress(100, 25, 0, 4096);
 
         let eta = progress
             .estimated_completion_time
@@ -611,7 +275,7 @@ mod tests {
         let mut progress = HealProgress::new();
         progress.set_total_baseline(10, 8192);
 
-        progress.update_progress(25, 25, 0, 4096);
+        progress.update_progress(100, 25, 0, 4096);
 
         assert!((progress.progress_percentage - 50.0).abs() < 0.001);
     }
@@ -621,7 +285,7 @@ mod tests {
         let mut progress = HealProgress::new();
         progress.set_total_baseline(10, 0);
 
-        progress.update_progress(5, 3, 2, 0);
+        progress.update_progress(100, 3, 2, 0);
 
         assert!((progress.progress_percentage - 50.0).abs() < 0.001);
     }
@@ -631,7 +295,7 @@ mod tests {
         let mut progress = HealProgress::new();
         progress.set_total_baseline(10, 0);
 
-        progress.update_progress(5, 3, 2, 0);
+        progress.update_progress(100, 3, 2, 0);
         progress.record_skipped_new_version();
 
         assert_eq!(progress.skipped_new_versions, 1);
@@ -672,8 +336,7 @@ mod tests {
     fn test_heal_progress_update_progress_all_healed() {
         let mut progress = HealProgress::new();
         // When scanned=0, healed=10, failed=0: total=10, progress = 10/10 = 100%
-        progress.update_progress(10, 10, 0, 2048);
-        progress.mark_completed();
+        progress.update_progress(0, 10, 0, 2048);
 
         // All healed, should be 100%
         assert!((progress.progress_percentage - 100.0).abs() < 0.001);
@@ -731,7 +394,6 @@ mod tests {
         assert_eq!(json["objectsScanned"], 10);
         assert_eq!(json["objectsHealed"], 8);
         assert_eq!(json["objectsFailed"], 2);
-        assert_eq!(json["skippedObjects"], 0);
         assert_eq!(json["skippedNewVersions"], 0);
         assert_eq!(json["skippedIlmExpired"], 0);
         assert_eq!(json["bytesProcessed"], 1024);
@@ -743,7 +405,6 @@ mod tests {
     fn test_heal_progress_is_completed_by_percentage() {
         let mut progress = HealProgress::new();
         progress.update_progress(10, 10, 0, 1024);
-        progress.mark_completed();
 
         assert!(progress.is_completed());
     }
@@ -754,7 +415,7 @@ mod tests {
         progress.objects_scanned = 10;
         progress.objects_healed = 8;
         progress.objects_failed = 2;
-        progress.mark_completed();
+        // healed + failed = 8 + 2 = 10 >= scanned = 10
         assert!(progress.is_completed());
     }
 
@@ -794,108 +455,6 @@ mod tests {
         assert!((progress.get_success_rate() - 100.0).abs() < 0.001);
     }
 
-    #[test]
-    fn single_object_progress_reaches_terminal_100() {
-        let mut progress = HealProgress::new();
-        progress.update_object_progress(1, 1, 0, 0, 128);
-        assert!(!progress.is_completed());
-        progress.mark_completed();
-        assert!(progress.is_completed());
-        assert_eq!(progress.progress_percentage, 100.0);
-    }
-
-    #[test]
-    fn progress_without_baseline_is_indeterminate() {
-        let mut progress = HealProgress::new();
-        progress.update_object_progress(1, 1, 0, 0, 128);
-        assert_eq!(progress.progress_state, HealProgressState::Indeterminate);
-        assert_eq!(progress.progress_percentage, 0.0);
-        assert!(progress.estimated_completion_time.is_none());
-    }
-
-    #[test]
-    fn progress_retry_is_exactly_once() {
-        let mut progress = HealProgress::new();
-        progress.set_total_baseline(1, 128);
-        progress.update_object_progress(1, 1, 0, 0, 128);
-        progress.update_object_progress(1, 1, 0, 0, 128);
-        assert_eq!(progress.objects_scanned, 1);
-        assert_eq!(progress.objects_healed, 1);
-        assert_eq!(progress.bytes_processed, 128);
-    }
-
-    #[test]
-    fn progress_never_triggers_cleanup_before_terminal_ledger_empty() {
-        let mut progress = HealProgress::new();
-        progress.progress_percentage = 100.0;
-        assert!(!progress.is_completed());
-        progress.mark_completed();
-        assert!(progress.is_completed());
-    }
-
-    #[test]
-    fn progress_counter_overflow_is_marked_unknown_without_aborting_completed_heal() {
-        let mut progress = HealProgress::new();
-        progress.update_object_progress(u64::MAX, u64::MAX, 1, 0, 0);
-        assert_eq!(progress.progress_state, HealProgressState::Unknown);
-        progress.mark_completed();
-        assert!(progress.is_completed());
-        assert_eq!(progress.progress_state, HealProgressState::Unknown);
-
-        let aggregate = aggregate_heal_progress([progress]).expect("progress should aggregate");
-        assert!(aggregate.ledger_complete);
-        assert!(aggregate.counter_unknown);
-        assert_eq!(aggregate.progress_state, HealProgressState::Unknown);
-        assert_eq!(aggregate.progress_percentage, 100.0);
-    }
-
-    #[test]
-    fn aggregate_rejects_mixed_baseline_generations() {
-        let progress = |generation| HealProgress {
-            kind: HealProgressKind::ObjectSweep,
-            objects_scanned: 5,
-            objects_total_count: 10,
-            progress_state: HealProgressState::Running,
-            baseline_generation: Some(generation),
-            baseline_known: true,
-            ..Default::default()
-        };
-
-        let aggregate = aggregate_heal_progress([progress(1), progress(2)]).expect("progress should aggregate");
-        assert!(!aggregate.baseline_known);
-        assert_eq!(aggregate.baseline_generation, None);
-        assert_eq!(aggregate.progress_state, HealProgressState::Indeterminate);
-        assert_eq!(aggregate.progress_percentage, 0.0);
-    }
-
-    #[test]
-    fn aggregate_accepts_multiple_sets_from_one_snapshot_generation() {
-        let progress = |objects_scanned| HealProgress {
-            kind: HealProgressKind::ObjectSweep,
-            objects_scanned,
-            objects_total_count: 10,
-            progress_state: HealProgressState::Running,
-            baseline_generation: Some(7),
-            baseline_known: true,
-            ..Default::default()
-        };
-
-        let aggregate = aggregate_heal_progress([progress(5), progress(3)]).expect("progress should aggregate");
-        assert!(aggregate.baseline_known);
-        assert_eq!(aggregate.baseline_generation, Some(7));
-    }
-
-    #[test]
-    fn stage_updates_do_not_double_count_object_outcomes() {
-        let mut progress = HealProgress::new();
-        progress.update_object_progress(2, 1, 0, 1, 256);
-        progress.update_stage(3, 4);
-        assert_eq!(progress.kind, HealProgressKind::ObjectSweep);
-        assert_eq!(progress.objects_scanned, 2);
-        assert_eq!(progress.objects_healed, 1);
-        assert_eq!(progress.skipped_objects, 1);
-    }
-
     #[test]
     fn test_heal_statistics_new() {
         let stats = HealStatistics::new();

crates/heal/src/heal/resume.rs

@@ -31,7 +31,7 @@ mod checkpoint;
 mod replacement;
 mod utils;
 
-pub use checkpoint::{CheckpointManager, CheckpointObjectOutcome, CheckpointObjectOutcomeRecord, ResumeCheckpoint};
+pub use checkpoint::{CheckpointManager, ResumeCheckpoint};
 pub(crate) use replacement::replacement_target_identities_match;
 use replacement::replacement_targets_match_identities;
 pub use replacement::{
@@ -340,12 +340,6 @@ pub struct ResumeState {
     pub failed_objects: u64,
     /// skipped objects
     pub skipped_objects: u64,
-    /// Terminal versions skipped because they were newer than the heal start.
-    #[serde(default)]
-    pub skipped_new_versions: u64,
-    /// Terminal versions handed to lifecycle expiry.
-    #[serde(default)]
-    pub skipped_ilm_expired: u64,
     /// current bucket
     pub current_bucket: Option<String>,
     /// current object
@@ -360,24 +354,6 @@ pub struct ResumeState {
     pub retry_count: u32,
     /// max retries
     pub max_retries: u32,
-    /// Bytes accounted by the object ledger; additive for old snapshots.
-    #[serde(default)]
-    pub processed_bytes: u64,
-    /// Total bytes from a complete usage snapshot, when available.
-    #[serde(default)]
-    pub total_bytes: u64,
-    /// Generation of the usage snapshot used for the baseline.
-    #[serde(default)]
-    pub baseline_generation: Option<u64>,
-    /// Whether the usage baseline is known. Missing in old snapshots means
-    /// indeterminate rather than a measured zero baseline.
-    #[serde(default)]
-    pub baseline_known: bool,
-    /// Persistent telemetry fence for counter/byte overflow or corruption.
-    /// It must survive a restart so a saturated snapshot is never presented as
-    /// a measured percentage on the next resume.
-    #[serde(default)]
-    pub counter_unknown: bool,
 }
 
 impl ResumeState {
@@ -401,8 +377,6 @@ impl ResumeState {
             successful_objects: 0,
             failed_objects: 0,
             skipped_objects: 0,
-            skipped_new_versions: 0,
-            skipped_ilm_expired: 0,
             current_bucket: None,
             current_object: None,
             completed_buckets: Vec::new(),
@@ -410,11 +384,6 @@ impl ResumeState {
             error_message: None,
             retry_count: 0,
             max_retries: 3,
-            processed_bytes: 0,
-            total_bytes: 0,
-            baseline_generation: None,
-            baseline_known: false,
-            counter_unknown: false,
         }
     }
 
@@ -443,39 +412,6 @@ impl ResumeState {
         self.last_update = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
     }
 
-    pub fn update_progress_with_bytes(
-        &mut self,
-        processed: u64,
-        successful: u64,
-        failed: u64,
-        skipped: u64,
-        processed_bytes: u64,
-    ) {
-        self.update_progress(processed, successful, failed, skipped);
-        self.processed_bytes = processed_bytes;
-    }
-
-    pub fn set_skipped_version_counts(&mut self, new_versions: u64, ilm_expired: u64) {
-        self.skipped_new_versions = new_versions;
-        self.skipped_ilm_expired = ilm_expired;
-        self.last_update = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
-    }
-
-    pub fn set_progress_baseline(&mut self, total_objects: u64, total_bytes: u64, generation: Option<u64>) {
-        self.total_objects = total_objects;
-        self.total_bytes = total_bytes;
-        self.baseline_generation = generation;
-        // This method is called only after a complete usage snapshot has been
-        // validated.  A complete but empty snapshot is still a known baseline.
-        self.baseline_known = true;
-        self.last_update = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
-    }
-
-    pub fn mark_counter_unknown(&mut self) {
-        self.counter_unknown = true;
-        self.last_update = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
-    }
-
     pub fn set_current_item(&mut self, bucket: Option<String>, object: Option<String>) {
         self.current_bucket = bucket;
         self.current_object = object;
@@ -501,7 +437,6 @@ impl ResumeState {
         if let Some(pos) = self.pending_buckets.iter().position(|b| b == bucket) {
             self.pending_buckets.remove(pos);
         }
-        self.resume_cursor = None;
         self.last_update = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
     }
 
@@ -519,10 +454,6 @@ impl ResumeState {
         self.successful_objects = 0;
         self.failed_objects = 0;
         self.skipped_objects = 0;
-        self.skipped_new_versions = 0;
-        self.skipped_ilm_expired = 0;
-        self.processed_bytes = 0;
-        self.counter_unknown = false;
         self.completed = false;
         // A retry re-scans every bucket from the beginning, so the version
         // cursor must be cleared too — otherwise the retry would resume mid-scan.
@@ -545,28 +476,14 @@ impl ResumeState {
     }
 
     pub fn get_progress_percentage(&self) -> f64 {
-        if self.completed {
-            return 100.0;
-        }
-        if self.counter_unknown {
-            return 0.0;
-        }
-        if !self.baseline_known {
-            return 0.0;
-        }
-        if self.total_bytes > 0 {
-            return ((self.processed_bytes as f64 / self.total_bytes as f64) * 100.0).min(99.999);
-        }
         if self.total_objects == 0 {
             return 0.0;
         }
-        ((self.processed_objects as f64 / self.total_objects as f64) * 100.0).min(99.999)
+        (self.processed_objects as f64 / self.total_objects as f64) * 100.0
     }
 
     pub fn get_success_rate(&self) -> f64 {
-        let Some(total) = self.successful_objects.checked_add(self.failed_objects) else {
-            return 0.0;
-        };
+        let total = self.successful_objects + self.failed_objects;
         if total == 0 {
             return 0.0;
         }
@@ -837,14 +754,6 @@ impl ResumeManager {
             state.successful_objects = 0;
             state.failed_objects = 0;
             state.skipped_objects = 0;
-            state.skipped_new_versions = 0;
-            state.skipped_ilm_expired = 0;
-            state.processed_bytes = 0;
-            state.total_objects = 0;
-            state.total_bytes = 0;
-            state.baseline_generation = None;
-            state.baseline_known = false;
-            state.counter_unknown = false;
             state.completed = false;
             state.completed_buckets.clear();
             state.schema_version = CURRENT_RESUME_SCHEMA;
@@ -929,41 +838,6 @@ impl ResumeManager {
         self.save_state_throttled().await
     }
 
-    pub async fn update_progress_with_bytes(
-        &self,
-        processed: u64,
-        successful: u64,
-        failed: u64,
-        skipped: u64,
-        processed_bytes: u64,
-    ) -> Result<()> {
-        let mut state = self.state.write().await;
-        state.update_progress_with_bytes(processed, successful, failed, skipped, processed_bytes);
-        drop(state);
-        self.save_state_throttled().await
-    }
-
-    pub async fn set_progress_baseline(&self, total_objects: u64, total_bytes: u64, generation: Option<u64>) -> Result<()> {
-        let mut state = self.state.write().await;
-        state.set_progress_baseline(total_objects, total_bytes, generation);
-        drop(state);
-        self.save_state_throttled().await
-    }
-
-    pub async fn mark_counter_unknown(&self) -> Result<()> {
-        let mut state = self.state.write().await;
-        state.mark_counter_unknown();
-        drop(state);
-        self.save_state().await
-    }
-
-    pub async fn set_skipped_version_counts(&self, new_versions: u64, ilm_expired: u64) -> Result<()> {
-        let mut state = self.state.write().await;
-        state.set_skipped_version_counts(new_versions, ilm_expired);
-        drop(state);
-        self.save_state_throttled().await
-    }
-
     /// Set current item. Called once per healed object, so persistence is
     /// throttled: the in-memory state always updates, but the snapshot is only
     /// written every `PERSIST_EVERY_MUTATIONS` calls or `PERSIST_INTERVAL`.
@@ -1008,7 +882,7 @@ impl ResumeManager {
         let mut state = self.state.write().await;
         state.complete_bucket(bucket);
         drop(state);
-        self.save_state().await
+        self.save_state_throttled().await
     }
 
     /// mark task completed

crates/heal/src/heal/resume/checkpoint.rs

@@ -29,30 +29,10 @@ use super::{
 
 const EVENT_HEAL_CHECKPOINT_STATE: &str = "heal_checkpoint_state";
 
-/// Current on-disk schema version for `ResumeCheckpoint`. Schema 5 could
-/// persist dedup identities without the aggregate counters needed to restore
-/// them safely, so stale checkpoints are discarded and replayed.
-pub(super) const CURRENT_CHECKPOINT_SCHEMA: u32 = 6;
-
-#[derive(Debug, Clone, Copy)]
-pub enum CheckpointObjectOutcome {
-    Processed,
-    Failed,
-    Skipped,
-}
-
-#[derive(Debug)]
-pub struct CheckpointObjectOutcomeRecord {
-    pub object: String,
-    pub outcome: CheckpointObjectOutcome,
-    pub successful: u64,
-    pub failed: u64,
-    pub skipped: u64,
-    pub bytes: u64,
-    pub skipped_new_versions: u64,
-    pub skipped_ilm_expired: u64,
-    pub counter_unknown: bool,
-}
+/// Current on-disk schema version for `ResumeCheckpoint`. Same rationale as
+/// `CURRENT_RESUME_SCHEMA`: pre-per-version dedup identities are not comparable
+/// to the new `compose_key` identities, so a stale checkpoint is discarded.
+pub(super) const CURRENT_CHECKPOINT_SCHEMA: u32 = 5;
 
 /// resume checkpoint
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -77,30 +57,6 @@ pub struct ResumeCheckpoint {
     pub failed_objects: HashSet<String>,
     /// skipped objects
     pub skipped_objects: HashSet<String>,
-    /// Aggregate object ledger counters restored alongside the dedup sets.
-    #[serde(default)]
-    pub successful_objects: u64,
-    #[serde(default)]
-    pub failed_object_count: u64,
-    #[serde(default)]
-    pub skipped_object_count: u64,
-    #[serde(default)]
-    pub skipped_new_versions: u64,
-    #[serde(default)]
-    pub skipped_ilm_expired: u64,
-    #[serde(default)]
-    pub processed_bytes: u64,
-    #[serde(default)]
-    pub total_objects: u64,
-    #[serde(default)]
-    pub total_bytes: u64,
-    #[serde(default)]
-    pub baseline_generation: Option<u64>,
-    #[serde(default)]
-    pub baseline_known: bool,
-    /// Persistent telemetry fence for counter/byte overflow or corruption.
-    #[serde(default)]
-    pub counter_unknown: bool,
 }
 
 impl ResumeCheckpoint {
@@ -114,17 +70,6 @@ impl ResumeCheckpoint {
             processed_objects: HashSet::new(),
             failed_objects: HashSet::new(),
             skipped_objects: HashSet::new(),
-            successful_objects: 0,
-            failed_object_count: 0,
-            skipped_object_count: 0,
-            skipped_new_versions: 0,
-            skipped_ilm_expired: 0,
-            processed_bytes: 0,
-            total_objects: 0,
-            total_bytes: 0,
-            baseline_generation: None,
-            baseline_known: false,
-            counter_unknown: false,
         }
     }
 
@@ -146,34 +91,6 @@ impl ResumeCheckpoint {
         self.skipped_objects.insert(object);
     }
 
-    pub fn update_progress(&mut self, successful: u64, failed: u64, skipped: u64, bytes: u64) {
-        self.successful_objects = successful;
-        self.failed_object_count = failed;
-        self.skipped_object_count = skipped;
-        self.processed_bytes = bytes;
-    }
-
-    pub fn set_progress_baseline(&mut self, total_objects: u64, total_bytes: u64, generation: Option<u64>) {
-        self.total_objects = total_objects;
-        self.total_bytes = total_bytes;
-        self.baseline_generation = generation;
-        // The caller has already validated that this is a complete snapshot;
-        // preserve the distinction between a known empty scope and an old
-        // checkpoint that omitted all baseline fields.
-        self.baseline_known = true;
-    }
-
-    pub fn mark_counter_unknown(&mut self) {
-        self.counter_unknown = true;
-        self.checkpoint_time = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
-    }
-
-    pub fn set_skipped_version_counts(&mut self, new_versions: u64, ilm_expired: u64) {
-        self.skipped_new_versions = new_versions;
-        self.skipped_ilm_expired = ilm_expired;
-        self.checkpoint_time = SystemTime::now().duration_since(UNIX_EPOCH).unwrap_or_default().as_secs();
-    }
-
     /// Advance past a fully-processed page: objects below `object_index` are
     /// skipped by position on resume, so the per-object sets no longer need
     /// their entries and would otherwise grow with the whole bucket.
@@ -190,17 +107,6 @@ impl ResumeCheckpoint {
         self.update_position(0, 0);
         self.processed_objects.clear();
         self.skipped_objects.clear();
-        self.successful_objects = 0;
-        self.failed_object_count = 0;
-        self.skipped_object_count = 0;
-        self.skipped_new_versions = 0;
-        self.skipped_ilm_expired = 0;
-        self.processed_bytes = 0;
-        self.total_objects = 0;
-        self.total_bytes = 0;
-        self.baseline_generation = None;
-        self.baseline_known = false;
-        self.counter_unknown = false;
         self.failed_objects.clear();
     }
 }
@@ -252,9 +158,10 @@ impl CheckpointManager {
             });
         }
 
-        // Older checkpoints can contain identities that are not comparable to
-        // the current keys or lack their corresponding aggregate counters.
-        // Discard the stale sets and position so the scan restarts cleanly.
+        // A checkpoint from an older schema stored latest-only dedup identities
+        // that are not comparable to the new per-version `compose_key`
+        // identities. Discard the stale sets and position, then stamp the
+        // current schema so the scan restarts cleanly.
         if checkpoint.schema_version > CURRENT_CHECKPOINT_SCHEMA {
             return Err(Error::TaskExecutionFailed {
                 message: format!(
@@ -278,17 +185,6 @@ impl CheckpointManager {
             checkpoint.processed_objects.clear();
             checkpoint.failed_objects.clear();
             checkpoint.skipped_objects.clear();
-            checkpoint.successful_objects = 0;
-            checkpoint.failed_object_count = 0;
-            checkpoint.skipped_object_count = 0;
-            checkpoint.skipped_new_versions = 0;
-            checkpoint.skipped_ilm_expired = 0;
-            checkpoint.processed_bytes = 0;
-            checkpoint.total_objects = 0;
-            checkpoint.total_bytes = 0;
-            checkpoint.baseline_generation = None;
-            checkpoint.baseline_known = false;
-            checkpoint.counter_unknown = false;
             checkpoint.current_bucket_index = 0;
             checkpoint.current_object_index = 0;
             checkpoint.schema_version = CURRENT_CHECKPOINT_SCHEMA;
@@ -329,7 +225,7 @@ impl CheckpointManager {
         self.save_checkpoint_throttled().await
     }
 
-    /// Persist a completed page position while retaining its identities.
+    /// Advance past a completed page and prune the per-object sets, then persist.
     pub async fn complete_page(&self, bucket_index: usize, object_index: usize) -> Result<()> {
         let mut checkpoint = self.checkpoint.write().await;
         checkpoint.complete_page(bucket_index, object_index);
@@ -337,35 +233,6 @@ impl CheckpointManager {
         self.save_checkpoint_throttled().await
     }
 
-    /// Persist the page position while retaining identities until the resume
-    /// cursor is durable.
-    pub async fn advance_page(&self, bucket_index: usize, object_index: usize) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.update_position(bucket_index, object_index);
-        drop(checkpoint);
-        self.save_checkpoint().await
-    }
-
-    /// Remove the previous page's dedup identities only after its resume cursor
-    /// has been durably exposed.
-    pub async fn prune_completed_page(&self) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.processed_objects.clear();
-        checkpoint.skipped_objects.clear();
-        checkpoint.failed_objects.clear();
-        drop(checkpoint);
-        self.save_checkpoint().await
-    }
-
-    /// Advance to the next bucket and clear the final page identities after the
-    /// resume state has durably recorded the completed bucket.
-    pub async fn complete_bucket(&self, next_bucket_index: usize) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.complete_page(next_bucket_index, 0);
-        drop(checkpoint);
-        self.save_checkpoint().await
-    }
-
     /// Reset the checkpoint to the start of the scan for a retry, then persist.
     pub async fn reset_for_retry(&self) -> Result<()> {
         let mut checkpoint = self.checkpoint.write().await;
@@ -400,62 +267,6 @@ impl CheckpointManager {
         self.save_checkpoint_if_due().await
     }
 
-    /// Atomically persist an object's dedup identity with its aggregate result.
-    pub async fn record_object_outcome(&self, record: CheckpointObjectOutcomeRecord) -> Result<()> {
-        let CheckpointObjectOutcomeRecord {
-            object,
-            outcome,
-            successful,
-            failed,
-            skipped,
-            bytes,
-            skipped_new_versions,
-            skipped_ilm_expired,
-            counter_unknown,
-        } = record;
-        let mut checkpoint = self.checkpoint.write().await;
-        match outcome {
-            CheckpointObjectOutcome::Processed => checkpoint.add_processed_object(object),
-            CheckpointObjectOutcome::Failed => checkpoint.add_failed_object(object),
-            CheckpointObjectOutcome::Skipped => checkpoint.add_skipped_object(object),
-        }
-        checkpoint.update_progress(successful, failed, skipped, bytes);
-        checkpoint.set_skipped_version_counts(skipped_new_versions, skipped_ilm_expired);
-        if counter_unknown {
-            checkpoint.mark_counter_unknown();
-        }
-        drop(checkpoint);
-        self.save_checkpoint_if_due().await
-    }
-
-    pub async fn update_progress(&self, successful: u64, failed: u64, skipped: u64, bytes: u64) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.update_progress(successful, failed, skipped, bytes);
-        drop(checkpoint);
-        self.save_checkpoint_if_due().await
-    }
-
-    pub async fn set_progress_baseline(&self, total_objects: u64, total_bytes: u64, generation: Option<u64>) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.set_progress_baseline(total_objects, total_bytes, generation);
-        drop(checkpoint);
-        self.save_checkpoint_throttled().await
-    }
-
-    pub async fn mark_counter_unknown(&self) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.mark_counter_unknown();
-        drop(checkpoint);
-        self.save_checkpoint().await
-    }
-
-    pub async fn set_skipped_version_counts(&self, new_versions: u64, ilm_expired: u64) -> Result<()> {
-        let mut checkpoint = self.checkpoint.write().await;
-        checkpoint.set_skipped_version_counts(new_versions, ilm_expired);
-        drop(checkpoint);
-        self.save_checkpoint_throttled().await
-    }
-
     async fn save_checkpoint_if_due(&self) -> Result<()> {
         let should_save = self.throttle.lock().map(|mut throttle| throttle.record()).unwrap_or(true);
         if !should_save {

crates/heal/src/heal/resume/tests.rs

@@ -1296,7 +1296,6 @@ async fn test_resume_state_progress() {
     assert_eq!(progress, 0.0); // total_objects is 0
 
     state.total_objects = 100;
-    state.baseline_known = true;
     let progress = state.get_progress_percentage();
     assert_eq!(progress, 10.0);
 }
@@ -1476,40 +1475,6 @@ fn test_checkpoint_object_sets_dedupe_and_prune() {
     assert!(checkpoint.failed_objects.is_empty());
 }
 
-#[tokio::test]
-async fn checkpoint_page_commit_keeps_ledger_until_cursor_is_durable() {
-    let (_temp_dir, disk) = schema_test_disk().await;
-    let task_id = ResumeUtils::generate_task_id();
-    let checkpoint = CheckpointManager::new(disk.clone(), task_id.clone()).await.unwrap();
-
-    checkpoint
-        .record_object_outcome(CheckpointObjectOutcomeRecord {
-            object: "bucket/object:v1".to_string(),
-            outcome: CheckpointObjectOutcome::Processed,
-            successful: 1,
-            failed: 0,
-            skipped: 0,
-            bytes: 128,
-            skipped_new_versions: 0,
-            skipped_ilm_expired: 0,
-            counter_unknown: false,
-        })
-        .await
-        .unwrap();
-    checkpoint.advance_page(0, 1).await.unwrap();
-
-    let reloaded = CheckpointManager::load_from_disk(disk.clone(), &task_id).await.unwrap();
-    let snapshot = reloaded.get_checkpoint().await;
-    assert_eq!(snapshot.current_object_index, 1);
-    assert_eq!(snapshot.successful_objects, 1);
-    assert_eq!(snapshot.processed_bytes, 128);
-    assert!(snapshot.processed_objects.contains("bucket/object:v1"));
-
-    checkpoint.prune_completed_page().await.unwrap();
-    let reloaded = CheckpointManager::load_from_disk(disk, &task_id).await.unwrap();
-    assert!(reloaded.get_checkpoint().await.processed_objects.is_empty());
-}
-
 #[test]
 fn test_checkpoint_loads_legacy_vec_format() {
     // Checkpoints written before the HashSet migration stored the object
@@ -1603,14 +1568,14 @@ async fn test_resumestate_schema_v0_discarded_on_load() {
 }
 
 #[tokio::test]
-async fn test_checkpoint_schema_v5_discarded_on_load() {
+async fn test_checkpoint_schema_v4_discarded_on_load() {
     let (temp_dir, disk) = schema_test_disk().await;
 
-    // Schema v5 can persist failed identities without the aggregate counters
-    // that make those identities safe to deduplicate after an upgrade.
+    // The previous checkpoint schema is unsafe once its paired resume
+    // state is discarded: retaining either position would skip work.
     let task_id = "00000000-0000-4000-8000-000000000002";
     let legacy = r#"{
-            "schema_version": 5,
+            "schema_version": 4,
             "task_id": "00000000-0000-4000-8000-000000000002",
             "checkpoint_time": 1700000000,
             "current_bucket_index": 2,
@@ -1674,120 +1639,6 @@ async fn current_normal_resume_schema_preserves_progress() {
     temp_dir.close().expect("remove schema test directory");
 }
 
-#[test]
-fn progress_checkpoint_restores_bytes_and_generation() {
-    let mut checkpoint = ResumeCheckpoint::new("progress-checkpoint".to_string());
-    checkpoint.set_progress_baseline(9, 4096, Some(77));
-    checkpoint.update_progress(4, 1, 2, 2048);
-    checkpoint.set_skipped_version_counts(3, 1);
-    checkpoint.mark_counter_unknown();
-
-    let restored: ResumeCheckpoint =
-        serde_json::from_slice(&serde_json::to_vec(&checkpoint).expect("serialize checkpoint")).expect("deserialize checkpoint");
-    assert_eq!(restored.processed_bytes, 2048);
-    assert_eq!(restored.total_objects, 9);
-    assert_eq!(restored.total_bytes, 4096);
-    assert_eq!(restored.baseline_generation, Some(77));
-    assert!(restored.baseline_known);
-    assert_eq!(restored.skipped_new_versions, 3);
-    assert_eq!(restored.skipped_ilm_expired, 1);
-    assert!(restored.counter_unknown);
-}
-
-#[test]
-fn old_progress_schema_migrates_missing_fields_to_unknown() {
-    let state = ResumeState::new(
-        "legacy-progress".to_string(),
-        "erasure_set".to_string(),
-        "pool_0_set_0".to_string(),
-        Vec::new(),
-    );
-    let mut value = serde_json::to_value(state).expect("serialize legacy-compatible state");
-    let object = value.as_object_mut().expect("state must be an object");
-    for field in [
-        "processed_bytes",
-        "total_bytes",
-        "baseline_generation",
-        "baseline_known",
-        "skipped_new_versions",
-        "skipped_ilm_expired",
-    ] {
-        object.remove(field);
-    }
-    object.insert("total_objects".to_string(), serde_json::json!(10));
-    object.insert("processed_objects".to_string(), serde_json::json!(5));
-    let restored: ResumeState = serde_json::from_value(value).expect("deserialize old progress state");
-    assert_eq!(restored.processed_bytes, 0);
-    assert_eq!(restored.total_bytes, 0);
-    assert_eq!(restored.baseline_generation, None);
-    assert!(!restored.baseline_known, "missing baseline must remain unknown");
-    assert_eq!(restored.get_progress_percentage(), 0.0);
-    assert_eq!(restored.skipped_new_versions, 0);
-    assert_eq!(restored.skipped_ilm_expired, 0);
-}
-
-#[test]
-fn progress_counter_unknown_survives_resume_round_trip() {
-    let mut state = ResumeState::new(
-        "overflow-progress".to_string(),
-        "erasure_set".to_string(),
-        "pool_0_set_0".to_string(),
-        Vec::new(),
-    );
-    state.mark_counter_unknown();
-
-    let restored: ResumeState =
-        serde_json::from_slice(&serde_json::to_vec(&state).expect("serialize resume state")).expect("deserialize resume state");
-    assert!(restored.counter_unknown);
-}
-
-#[tokio::test]
-async fn checkpoint_progress_survives_a_torn_resume_summary_write() {
-    let (_temp_dir, disk) = schema_test_disk().await;
-    let task_id = ResumeUtils::generate_task_id();
-    let _resume = ResumeManager::new(
-        disk.clone(),
-        task_id.clone(),
-        "erasure_set".to_string(),
-        "pool_0_set_0".to_string(),
-        vec!["bucket".to_string()],
-    )
-    .await
-    .expect("resume state should persist");
-    let checkpoint = CheckpointManager::new(disk.clone(), task_id.clone())
-        .await
-        .expect("checkpoint should persist");
-
-    // This is the ordering used by the erasure-set loop: the checkpoint is
-    // durable before the summary write.  Stop here to model a crash in the
-    // inter-store window and verify that the recovery authority retains the
-    // telemetry fence and bytes.
-    checkpoint
-        .update_progress(3, 0, 0, 1024)
-        .await
-        .expect("checkpoint progress should persist");
-    checkpoint.mark_counter_unknown().await.expect("unknown fence should persist");
-    checkpoint
-        .update_position(0, 3)
-        .await
-        .expect("checkpoint position should persist");
-
-    let restored_checkpoint = CheckpointManager::load_from_disk(disk.clone(), &task_id)
-        .await
-        .expect("checkpoint should reload")
-        .get_checkpoint()
-        .await;
-    let restored_resume = ResumeManager::load_from_disk(disk, &task_id)
-        .await
-        .expect("resume summary should reload")
-        .get_state()
-        .await;
-    assert!(restored_checkpoint.counter_unknown);
-    assert_eq!(restored_checkpoint.processed_bytes, 1024);
-    assert_eq!(restored_checkpoint.current_object_index, 3);
-    assert!(!restored_resume.counter_unknown, "summary is intentionally the torn/older store");
-}
-
 #[tokio::test]
 async fn future_resume_and_checkpoint_schemas_are_rejected() {
     let (temp_dir, disk) = schema_test_disk().await;

crates/heal/src/heal/storage.rs

@@ -22,7 +22,6 @@ use serde::{Deserialize, Serialize};
 use std::sync::Arc;
 use tracing::{debug, error, warn};
 
-use super::progress::stable_generation;
 use super::storage_api::owner::{EcstoreHealLifecycleExpiryContext, ecstore_load_admin_data_usage_from_backend_cached};
 use super::storage_api::storage::{
     BucketInfo, BucketOperations, DiskSetSelector, HealOperations as _, ListOperations as _, ObjectIO as _,
@@ -35,9 +34,6 @@ pub use super::{HealObjectInfo, HealObjectOptions, HealPutObjReader};
 pub struct HealBucketUsageBaseline {
     pub objects_count: u64,
     pub bytes: u64,
-    /// Stable identity of the validated usage snapshot and selected scope.
-    /// `None` is retained for test/legacy providers that cannot expose one.
-    pub generation: Option<u64>,
 }
 
 pub struct HealLifecycleExpiryContext {
@@ -789,52 +785,11 @@ impl HealStorageAPI for ECStoreHealStorage {
         let mut baseline = HealBucketUsageBaseline::default();
         for bucket in buckets {
             if let Some(usage) = info.buckets_usage.get(bucket) {
-                baseline.objects_count = match baseline.objects_count.checked_add(usage.objects_count) {
-                    Some(total) => total,
-                    // A corrupt/overflowing usage snapshot is not a usable
-                    // denominator.  Leave progress indeterminate instead of
-                    // turning saturation into a plausible percentage.
-                    None => return Ok(None),
-                };
-                baseline.bytes = match baseline.bytes.checked_add(usage.size) {
-                    Some(total) => total,
-                    None => return Ok(None),
-                };
+                baseline.objects_count = baseline.objects_count.saturating_add(usage.objects_count);
+                baseline.bytes = baseline.bytes.saturating_add(usage.size);
             }
         }
 
-        let identity = info.snapshot_identity();
-        let mut canonical = Vec::new();
-        match identity.last_update {
-            Some(last_update) => {
-                canonical.push(1);
-                canonical.extend_from_slice(
-                    &last_update
-                        .duration_since(std::time::UNIX_EPOCH)
-                        .unwrap_or_default()
-                        .as_nanos()
-                        .to_be_bytes(),
-                );
-            }
-            None => canonical.push(0),
-        }
-        for value in [identity.scanner_cycle, identity.scanner_epoch] {
-            match value {
-                Some(value) => {
-                    canonical.push(1);
-                    canonical.extend_from_slice(&value.to_be_bytes());
-                }
-                None => canonical.push(0),
-            }
-        }
-        let mut scope = buckets.to_vec();
-        scope.sort_unstable();
-        for bucket in scope {
-            canonical.extend_from_slice(&(bucket.len() as u64).to_be_bytes());
-            canonical.extend_from_slice(bucket.as_bytes());
-        }
-        baseline.generation = Some(stable_generation(&[&canonical]));
-
         Ok(Some(baseline))
     }
 

crates/heal/src/heal/task.rs

@@ -649,7 +649,7 @@ impl HealTask {
 
         let mut progress = self.progress.write().await;
         progress.set_current_object(Some(format!("skipped: {bucket}/{object}")));
-        progress.update_stage(1, 1);
+        progress.update_progress(0, 1, 0, 0);
         Ok(())
     }
 
@@ -733,7 +733,7 @@ impl HealTask {
             "Heal object skipped for data usage cache after transient error"
         );
         let mut progress = self.progress.write().await;
-        progress.update_stage(3, 3);
+        progress.update_progress(3, 3, 0, 0);
         true
     }
 
@@ -757,7 +757,7 @@ impl HealTask {
         );
         let mut progress = self.progress.write().await;
         progress.set_current_object(Some(format!("skipped: {bucket}/{object}")));
-        progress.update_stage(4, 4);
+        progress.update_progress(4, 4, 0, 0);
         true
     }
 
@@ -831,10 +831,6 @@ impl HealTask {
 
         match &result {
             Ok(_) => {
-                // A stage can reach its final step before the durable resume
-                // ledger and cleanup fences commit. Publish terminal 100 only
-                // after the enclosing operation has returned success.
-                self.progress.write().await.mark_completed();
                 let mut status = self.status.write().await;
                 *status = HealTaskStatus::Completed;
                 demote_to_debug_when!(self.heal_type.is_per_object(), info, target: "rustfs::heal::task", {

crates/heal/src/heal/task/heal_bucket.rs

@@ -13,7 +13,6 @@
 // limitations under the License.
 /// bucket/cluster/prefix heal: the recursive bucket-objects sweep and the erasure-set usage baseline
 use super::*;
-use crate::heal::progress::{add_bytes, increment_counter, stable_generation};
 
 impl HealTask {
     pub(super) async fn heal_bucket(&self, bucket: &str) -> Result<()> {
@@ -33,7 +32,7 @@ impl HealTask {
         {
             let mut progress = self.progress.write().await;
             progress.set_current_object(Some(format!("bucket: {bucket}")));
-            progress.update_stage(0, 3);
+            progress.update_progress(0, 3, 0, 0);
         }
 
         // Step 1: Check if bucket exists
@@ -67,7 +66,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(1, 3);
+            progress.update_progress(1, 3, 0, 0);
         }
 
         // Step 2: Perform bucket heal using ecstore
@@ -123,7 +122,7 @@ impl HealTask {
 
                 if !self.options.recursive {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
                 Ok(())
             }
@@ -143,7 +142,7 @@ impl HealTask {
                 );
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
                 Err(Error::TaskExecutionFailed {
                     message: format!("Failed to heal bucket {bucket}: {e}"),
@@ -246,7 +245,6 @@ impl HealTask {
         let mut scanned = 0u64;
         let mut healed = 0u64;
         let mut failed = 0u64;
-        let mut skipped = 0u64;
         let mut retryable_failed = 0u64;
         let mut permanent_failed = 0u64;
         let mut bytes = 0u64;
@@ -288,14 +286,16 @@ impl HealTask {
                 let mut retry = Vec::with_capacity(pending.len());
                 for item in pending {
                     self.check_control_flags().await?;
-                    let mut telemetry_unknown = false;
                     let object = item.name.as_str();
+                    if retry_attempt == 0 {
+                        scanned = scanned.saturating_add(1);
+                    }
                     {
                         let mut progress = self.progress.write().await;
                         progress.set_current_object(Some(format!("{bucket}/{object}")));
+                        progress.update_progress(scanned, healed, failed, bytes);
                     }
 
-                    let mut terminal_outcome = true;
                     let error = match self
                         .await_with_control(
                             self.storage
@@ -304,13 +304,13 @@ impl HealTask {
                         .await
                     {
                         Ok((result, None)) => {
-                            telemetry_unknown |= !increment_counter(&mut healed);
-                            telemetry_unknown |= !add_bytes(&mut bytes, u64::try_from(result.object_size).unwrap_or(u64::MAX));
+                            healed = healed.saturating_add(1);
+                            bytes = bytes.saturating_add(u64::try_from(result.object_size).unwrap_or_default());
                             self.record_result_item(result).await;
                             None
                         }
                         Ok((_, Some(err))) if is_missing_object_dir_heal_result(object, &err) => {
-                            telemetry_unknown |= !increment_counter(&mut healed);
+                            healed = healed.saturating_add(1);
                             debug!(
                                 target: "rustfs::heal::task",
                                 event = EVENT_HEAL_BUCKET_RESULT,
@@ -329,7 +329,6 @@ impl HealTask {
 
                     if let Some(err) = error {
                         if Self::should_skip_data_usage_cache_heal_error(bucket, object, &err) {
-                            telemetry_unknown |= !increment_counter(&mut skipped);
                             warn!(
                                 target: "rustfs::heal::task",
                                 event = EVENT_HEAL_BUCKET_RESULT,
@@ -343,7 +342,6 @@ impl HealTask {
                                 "Heal bucket object repair skipped due to transient metadata error"
                             );
                         } else if err.is_recoverable_heal() && retry_attempt < MAX_BUCKET_OBJECT_HEAL_RETRIES {
-                            terminal_outcome = false;
                             debug!(
                                 target: "rustfs::heal::task",
                                 event = EVENT_HEAL_BUCKET_RESULT,
@@ -359,7 +357,7 @@ impl HealTask {
                             );
                             retry.push(item);
                         } else {
-                            telemetry_unknown |= !increment_counter(&mut failed);
+                            failed = failed.saturating_add(1);
                             if err.is_recoverable_heal() {
                                 retryable_failed = retryable_failed.saturating_add(1);
                             } else {
@@ -385,19 +383,8 @@ impl HealTask {
                         }
                     }
 
-                    if terminal_outcome {
-                        telemetry_unknown |= !increment_counter(&mut scanned);
-                    }
-
-                    if !terminal_outcome {
-                        continue;
-                    }
-
                     let mut progress = self.progress.write().await;
-                    progress.update_object_progress(scanned, healed, failed, skipped, bytes);
-                    if telemetry_unknown {
-                        progress.mark_unknown();
-                    }
+                    progress.update_progress(scanned, healed, failed, bytes);
                 }
                 pending = retry;
                 retry_attempt = retry_attempt.saturating_add(1);
@@ -444,10 +431,7 @@ impl HealTask {
         Ok(())
     }
 
-    pub(super) async fn apply_erasure_set_usage_baseline(&self, buckets: &[String], _set_disk_id: &str) -> Result<()> {
-        if matches!(self.options.scan_mode, HealScanMode::Deep) || matches!(self.source, HealRequestSource::AutoHeal) {
-            return Ok(());
-        }
+    pub(super) async fn apply_erasure_set_usage_baseline(&self, buckets: &[String]) -> Result<()> {
         let baseline = match self
             .await_with_control(self.storage.erasure_set_usage_baseline(buckets))
             .await
@@ -458,18 +442,9 @@ impl HealTask {
             Err(_) => return Ok(()),
         };
 
-        let HealBucketUsageBaseline {
-            objects_count,
-            bytes,
-            generation,
-        } = baseline;
-        let generation = generation.map(|snapshot_generation| stable_generation(&[&snapshot_generation.to_be_bytes()]));
+        let HealBucketUsageBaseline { objects_count, bytes } = baseline;
         let mut progress = self.progress.write().await;
-        if let Some(generation) = generation {
-            progress.set_total_baseline_with_generation(objects_count, bytes, generation);
-        } else {
-            progress.set_total_baseline(objects_count, bytes);
-        }
+        progress.set_total_baseline(objects_count, bytes);
         Ok(())
     }
 }

crates/heal/src/heal/task/heal_erasure_set.rs

@@ -32,7 +32,7 @@ impl HealTask {
         {
             let mut progress = self.progress.write().await;
             progress.set_current_object(Some(format!("erasure_set: {} ({} buckets)", set_disk_id, buckets.len())));
-            progress.update_stage(0, 4);
+            progress.update_progress(0, 4, 0, 0);
         }
 
         let is_auto_replacement = matches!(self.source, HealRequestSource::AutoHeal) && !self.heal_endpoints.is_empty();
@@ -158,7 +158,7 @@ impl HealTask {
             None
         };
 
-        self.apply_erasure_set_usage_baseline(&buckets, &set_disk_id).await?;
+        self.apply_erasure_set_usage_baseline(&buckets).await?;
 
         let healing_marker = format!("{set_disk_id}:{}", self.id);
         if let Some((disk, resume_manager, _)) = replacement_resume.as_ref() {
@@ -248,7 +248,7 @@ impl HealTask {
                         );
                         {
                             let mut progress = self.progress.write().await;
-                            progress.update_stage(4, 4);
+                            progress.update_progress(4, 4, 0, 0);
                         }
                         return Err(Error::TaskExecutionFailed {
                             message: format!("Failed to heal disk format for {set_disk_id}: {error}"),
@@ -304,7 +304,7 @@ impl HealTask {
                 );
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(4, 4);
+                    progress.update_progress(4, 4, 0, 0);
                 }
                 return Err(Error::TaskExecutionFailed {
                     message: format!("Failed to heal disk format for {set_disk_id}: {e}"),
@@ -314,7 +314,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(1, 4);
+            progress.update_progress(1, 4, 0, 0);
         }
 
         // The rebuilt disks are formatted now: mark them as healing so
@@ -343,7 +343,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(2, 4);
+            progress.update_progress(2, 4, 0, 0);
         }
 
         // Step 3: Heal bucket structure
@@ -427,7 +427,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(3, 4);
+            progress.update_progress(3, 4, 0, 0);
         }
 
         // Step 4: Execute erasure set heal with resume
@@ -470,7 +470,9 @@ impl HealTask {
         };
 
         {
-            self.progress.write().await.update_stage(4, 4);
+            let mut progress = self.progress.write().await;
+            let bytes_processed = progress.bytes_processed;
+            progress.update_progress(4, 4, 0, bytes_processed);
         }
 
         match result {

crates/heal/src/heal/task/heal_metadata.rs

@@ -32,7 +32,7 @@ impl HealTask {
         {
             let mut progress = self.progress.write().await;
             progress.set_current_object(Some(format!("metadata: {bucket}/{object}")));
-            progress.update_stage(0, 3);
+            progress.update_progress(0, 3, 0, 0);
         }
 
         // Step 1: Check if object exists
@@ -74,7 +74,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(1, 3);
+            progress.update_progress(1, 3, 0, 0);
         }
 
         // Step 2: Perform metadata heal using ecstore
@@ -122,7 +122,7 @@ impl HealTask {
                     );
                     {
                         let mut progress = self.progress.write().await;
-                        progress.update_stage(3, 3);
+                        progress.update_progress(3, 3, 0, 0);
                     }
                     return Err(Error::TaskExecutionFailed {
                         message: format!("Failed to heal metadata {bucket}/{object}: {e}"),
@@ -145,7 +145,7 @@ impl HealTask {
 
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
                 self.record_result_item(result).await;
                 Ok(())
@@ -167,7 +167,7 @@ impl HealTask {
                 );
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
                 Err(Error::TaskExecutionFailed {
                     message: format!("Failed to heal metadata {bucket}/{object}: {e}"),
@@ -194,7 +194,7 @@ impl HealTask {
         {
             let mut progress = self.progress.write().await;
             progress.set_current_object(Some(format!("ec_decode: {bucket}/{object}")));
-            progress.update_stage(0, 3);
+            progress.update_progress(0, 3, 0, 0);
         }
 
         // Step 1: Check if object exists
@@ -236,7 +236,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(1, 3);
+            progress.update_progress(1, 3, 0, 0);
         }
 
         // Step 2: Perform EC decode heal using ecstore
@@ -284,7 +284,7 @@ impl HealTask {
                     );
                     {
                         let mut progress = self.progress.write().await;
-                        progress.update_stage(3, 3);
+                        progress.update_progress(3, 3, 0, 0);
                     }
                     return Err(Error::TaskExecutionFailed {
                         message: format!("Failed to heal EC decode {bucket}/{object}: {e}"),
@@ -309,7 +309,7 @@ impl HealTask {
 
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_object_progress(1, 1, 0, 0, object_size);
+                    progress.update_progress(3, 3, 0, object_size);
                 }
                 self.record_result_item(result).await;
                 Ok(())
@@ -331,7 +331,7 @@ impl HealTask {
                 );
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
                 Err(Error::TaskExecutionFailed {
                     message: format!("Failed to heal EC decode {bucket}/{object}: {e}"),

crates/heal/src/heal/task/heal_object.rs

@@ -36,7 +36,7 @@ impl HealTask {
         {
             let mut progress = self.progress.write().await;
             progress.set_current_object(Some(format!("{bucket}/{object}")));
-            progress.update_stage(0, 4);
+            progress.update_progress(0, 4, 0, 0);
         }
 
         // Step 1: Check if object exists and get metadata
@@ -132,7 +132,7 @@ impl HealTask {
 
         {
             let mut progress = self.progress.write().await;
-            progress.update_stage(1, 3);
+            progress.update_progress(1, 3, 0, 0);
         }
 
         // Step 2: directly call ecstore to perform heal
@@ -187,7 +187,7 @@ impl HealTask {
                         );
                         {
                             let mut progress = self.progress.write().await;
-                            progress.update_stage(3, 3);
+                            progress.update_progress(3, 3, 0, 0);
                         }
                         return Ok(());
                     }
@@ -207,7 +207,7 @@ impl HealTask {
 
                     {
                         let mut progress = self.progress.write().await;
-                        progress.update_stage(3, 3);
+                        progress.update_progress(3, 3, 0, 0);
                     }
 
                     if Self::should_return_typed_heal_error(&e) {
@@ -249,7 +249,7 @@ impl HealTask {
 
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_object_progress(1, 1, 0, 0, object_size);
+                    progress.update_progress(3, 3, 0, object_size);
                 }
                 self.record_result_item(result).await;
                 Ok(())
@@ -275,7 +275,7 @@ impl HealTask {
                     );
                     {
                         let mut progress = self.progress.write().await;
-                        progress.update_stage(3, 3);
+                        progress.update_progress(3, 3, 0, 0);
                     }
                     return Ok(());
                 }
@@ -295,7 +295,7 @@ impl HealTask {
 
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_stage(3, 3);
+                    progress.update_progress(3, 3, 0, 0);
                 }
 
                 if Self::should_return_typed_heal_error(&e) {
@@ -414,7 +414,7 @@ impl HealTask {
 
                 {
                     let mut progress = self.progress.write().await;
-                    progress.update_object_progress(1, 1, 0, 0, object_size);
+                    progress.update_progress(4, 4, 0, object_size);
                 }
                 self.record_result_item(result).await;
                 Ok(())

crates/heal/src/heal/task/tests.rs

@@ -22,7 +22,6 @@ use std::sync::Mutex;
 use tempfile::TempDir;
 
 use super::super::storage_api::status::BucketInfo;
-use crate::heal::progress::HealProgressState;
 
 #[tokio::test]
 async fn retry_request_carries_remaining_timeout_budget() {
@@ -2125,7 +2124,6 @@ async fn erasure_set_heal_applies_usage_baseline_to_progress() {
         usage_baseline: Mutex::new(Some(HealBucketUsageBaseline {
             objects_count: 10,
             bytes: 8,
-            generation: Some(1),
         })),
         ..Default::default()
     });
@@ -2149,55 +2147,10 @@ async fn erasure_set_heal_applies_usage_baseline_to_progress() {
     let progress = task.get_progress().await;
     assert_eq!(progress.objects_total_count, 10);
     assert_eq!(progress.objects_total_size, 8);
-    assert!(progress.baseline_generation.is_some());
-    assert!(progress.baseline_known);
     assert_eq!(progress.bytes_processed, 2);
     assert!((progress.progress_percentage - 25.0).abs() < 0.001);
 }
 
-#[tokio::test]
-async fn erasure_set_disk_walk_keeps_cluster_usage_baseline_indeterminate() {
-    for (scan_mode, source) in [
-        (HealScanMode::Deep, HealRequestSource::Admin),
-        (HealScanMode::Normal, HealRequestSource::AutoHeal),
-    ] {
-        let temp = TempDir::new().expect("temporary directory should be created");
-        let disk = make_resume_disk(&temp).await;
-        let storage = Arc::new(MockStorage {
-            resume_disk: Mutex::new(Some(disk)),
-            usage_baseline: Mutex::new(Some(HealBucketUsageBaseline {
-                objects_count: 10,
-                bytes: 8,
-                generation: Some(1),
-            })),
-            ..Default::default()
-        });
-        let mut request = HealRequest::new(
-            HealType::ErasureSet {
-                buckets: vec!["bucket-a".to_string()],
-                set_disk_id: "pool_0_set_0".to_string(),
-            },
-            HealOptions {
-                scan_mode,
-                timeout: None,
-                ..Default::default()
-            },
-            HealPriority::Normal,
-        );
-        request.source = source;
-        let task = HealTask::from_request(request, storage);
-
-        task.heal_erasure_set(vec!["bucket-a".to_string()], "pool_0_set_0".to_string())
-            .await
-            .expect("erasure set heal should complete");
-
-        let progress = task.get_progress().await;
-        assert!(!progress.baseline_known);
-        assert_eq!(progress.baseline_generation, None);
-        assert_eq!(progress.progress_state, HealProgressState::Indeterminate);
-    }
-}
-
 #[tokio::test]
 async fn erasure_set_heal_ignores_usage_baseline_errors() {
     let temp = TempDir::new().expect("temporary directory should be created");

crates/heal/src/lib.rs

@@ -19,7 +19,7 @@ pub use error::{Error, Result};
 pub use heal::{
     HealManager, HealOperationsSnapshot, HealOptions, HealPriority, HealPriorityCounts, HealRequest, HealSourceCounts, HealType,
     channel::HealChannelProcessor,
-    progress::{HealProgress, aggregate_heal_progress},
+    progress::HealProgress,
     resume::{ReplacementRecoveryRecord, ReplacementRecoveryState, ResumeUtils},
 };
 use rustfs_concurrency::WorkloadAdmissionSnapshotProvider;

crates/protos/src/generated/proto_gen/node_service.rs

@@ -1215,10 +1215,7 @@ pub struct ScannerActivityResponse {
     pub dirty_usage_pending: bool,
 }
 #[derive(Clone, Copy, PartialEq, Eq, Hash, ::prost::Message)]
-pub struct BackgroundHealStatusRequest {
-    #[prost(uint32, tag = "1")]
-    pub protocol_version: u32,
-}
+pub struct BackgroundHealStatusRequest {}
 #[derive(Clone, PartialEq, Eq, Hash, ::prost::Message)]
 pub struct BackgroundHealStatusResponse {
     #[prost(bool, tag = "1")]

crates/protos/src/lib.rs

@@ -170,7 +170,6 @@ pub fn internode_rpc_max_message_size() -> usize {
 pub const HEAL_CONTROL_RPC_MAX_MESSAGE_SIZE: usize = heal_control::RESULT_MAX_SIZE + 1024;
 pub const HEAL_CONTROL_PROTOCOL_VERSION: u32 = 3;
 pub const DYNAMIC_CONFIG_PROTOCOL_VERSION: u32 = 1;
-pub const BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION: u32 = 2;
 pub const HEAL_CONTROL_CAPABILITY_PROBE_PREFIX: &[u8] = b"rustfs-heal-control-capability-v3\0";
 pub const REMOTE_VERSION_STATE_CAPABILITY_PROBE_PREFIX: &[u8] = b"rustfs-tier-remote-version-state-capability-v1\0";
 pub const CROSS_POOL_FENCE_CAPABILITY_PROBE_PREFIX: &[u8] = b"rustfs-cross-pool-fence-capability-v1\0";
@@ -2347,28 +2346,10 @@ pub async fn evict_failed_connection_with_log_level(addr: &str, log_level: Conne
 #[cfg(test)]
 mod tests {
     use super::*;
-    use prost::Message as _;
     use std::sync::Mutex;
 
     static INTERNODE_RPC_MSGPACK_ONLY_ENV_LOCK: Mutex<()> = Mutex::new(());
 
-    #[derive(Clone, PartialEq, prost::Message)]
-    struct BackgroundHealStatusRequestV1 {}
-
-    #[test]
-    fn background_heal_status_request_remains_rolling_upgrade_compatible() {
-        let current = proto_gen::node_service::BackgroundHealStatusRequest {
-            protocol_version: BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION,
-        };
-        let encoded = current.encode_to_vec();
-        BackgroundHealStatusRequestV1::decode(encoded.as_slice()).expect("v1 server should ignore the version field");
-
-        let encoded = BackgroundHealStatusRequestV1 {}.encode_to_vec();
-        let decoded = proto_gen::node_service::BackgroundHealStatusRequest::decode(encoded.as_slice())
-            .expect("v2 server should accept a v1 request");
-        assert_eq!(decoded.protocol_version, 0);
-    }
-
     #[derive(Clone, Copy, Debug, Eq, Ord, PartialEq, PartialOrd)]
     struct CompatPayloadField {
         message: &'static str,

crates/protos/src/node.proto

@@ -846,9 +846,7 @@ message ScannerActivityResponse {
   bool dirty_usage_pending = 9;
 }
 
-message BackgroundHealStatusRequest {
-  uint32 protocol_version = 1;
-}
+message BackgroundHealStatusRequest {}
 
 message BackgroundHealStatusResponse {
   bool success = 1;

rustfs/src/admin/handlers/heal.rs

@@ -20,7 +20,7 @@ use crate::admin::storage_api::bucket::utils::is_valid_object_prefix;
 use crate::server::ADMIN_PREFIX;
 use crate::server::RemoteAddr;
 use crate::storage::rpc::node_service::heal::{
-    HealControlCoordinator, NodeHealStatusSnapshot, capture_node_heal_status, decode_node_heal_status,
+    HealControlCoordinator, NodeHealProgress, NodeHealStatusSnapshot, capture_node_heal_status, decode_node_heal_status,
     decode_node_replacement_recovery_status, heal_control_coordinator, heal_topology_fingerprint,
 };
 use bytes::Bytes;
@@ -298,7 +298,14 @@ fn background_heal_runtime_state(
     }
 }
 
-type BackgroundHealProgress = rustfs_heal::HealProgress;
+#[derive(Debug, Serialize)]
+#[serde(rename_all = "camelCase")]
+struct BackgroundHealProgress {
+    objects_scanned: u64,
+    objects_healed: u64,
+    objects_failed: u64,
+    bytes_processed: u64,
+}
 
 #[derive(Debug)]
 struct ClusterHealStatusSnapshot {
@@ -337,10 +344,17 @@ fn add_operations(total: &mut rustfs_heal::HealOperationsSnapshot, next: rustfs_
     add_source_counts(&mut total.retrying_by_source, next.retrying_by_source);
 }
 
+fn add_progress(total: &mut BackgroundHealProgress, next: NodeHealProgress) {
+    total.objects_scanned = total.objects_scanned.saturating_add(next.objects_scanned);
+    total.objects_healed = total.objects_healed.saturating_add(next.objects_healed);
+    total.objects_failed = total.objects_failed.saturating_add(next.objects_failed);
+    total.bytes_processed = total.bytes_processed.saturating_add(next.bytes_processed);
+}
+
 fn aggregate_cluster_heal_status(snapshots: Vec<NodeHealStatusSnapshot>) -> ClusterHealStatusSnapshot {
     let mut info = BackgroundHealInfo::default();
     let mut operations = rustfs_heal::HealOperationsSnapshot::default();
-    let mut progress = Vec::new();
+    let mut progress = None;
     let mut any_services_enabled = false;
     let mut any_initialized = false;
 
@@ -357,12 +371,18 @@ fn aggregate_cluster_heal_status(snapshots: Vec<NodeHealStatusSnapshot>) -> Clus
         }
         add_operations(&mut operations, snapshot.operations);
         if let Some(next) = snapshot.progress {
-            progress.push(next);
+            add_progress(
+                progress.get_or_insert(BackgroundHealProgress {
+                    objects_scanned: 0,
+                    objects_healed: 0,
+                    objects_failed: 0,
+                    bytes_processed: 0,
+                }),
+                next,
+            );
         }
     }
 
-    let progress = rustfs_heal::aggregate_heal_progress(progress);
-
     let state = if operations.queue_length > 0 || operations.active_tasks > 0 || operations.retrying_tasks > 0 {
         HealRuntimeState::Active
     } else if any_initialized {
@@ -2181,19 +2201,10 @@ mod tests {
         };
 
         let progress = BackgroundHealProgress {
-            kind: rustfs_heal::heal::progress::HealProgressKind::ObjectSweep,
             objects_scanned: 7,
             objects_healed: 3,
             objects_failed: 1,
-            skipped_objects: 3,
-            objects_total_count: 10,
-            objects_total_size: 8192,
             bytes_processed: 4096,
-            progress_percentage: 50.0,
-            progress_state: rustfs_heal::heal::progress::HealProgressState::Running,
-            baseline_generation: Some(42),
-            baseline_known: true,
-            ..Default::default()
         };
 
         let encoded = encode_background_heal_status(
@@ -2209,14 +2220,7 @@ mod tests {
         assert_eq!(json["progress"]["objectsScanned"], 7);
         assert_eq!(json["progress"]["objectsHealed"], 3);
         assert_eq!(json["progress"]["objectsFailed"], 1);
-        assert_eq!(json["progress"]["skippedObjects"], 3);
-        assert_eq!(json["progress"]["objectsTotalCount"], 10);
-        assert_eq!(json["progress"]["objectsTotalSize"], 8192);
         assert_eq!(json["progress"]["bytesProcessed"], 4096);
-        assert_eq!(json["progress"]["progressState"], "running");
-        assert_eq!(json["progress"]["baselineGeneration"], 42);
-        assert_eq!(json["progress"]["baselineKnown"], true);
-        assert_eq!(json["progress"]["counterUnknown"], false);
     }
 
     #[test]
@@ -2238,18 +2242,10 @@ mod tests {
                 ..Default::default()
             },
             Some(NodeHealProgress {
-                kind: rustfs_heal::heal::progress::HealProgressKind::ObjectSweep,
                 objects_scanned: 3,
                 objects_healed: 1,
                 objects_failed: 0,
-                skipped_objects: 2,
-                objects_total_count: 6,
-                objects_total_size: 400,
                 bytes_processed: 100,
-                progress_state: rustfs_heal::heal::progress::HealProgressState::Running,
-                baseline_generation: Some(9),
-                baseline_known: true,
-                ..Default::default()
             }),
         );
         let peer = NodeHealStatusSnapshot::for_test(
@@ -2269,17 +2265,10 @@ mod tests {
                 ..Default::default()
             },
             Some(NodeHealProgress {
-                kind: rustfs_heal::heal::progress::HealProgressKind::ObjectSweep,
                 objects_scanned: 5,
                 objects_healed: 4,
                 objects_failed: 1,
-                objects_total_count: 4,
-                objects_total_size: 1600,
                 bytes_processed: 900,
-                progress_state: rustfs_heal::heal::progress::HealProgressState::Running,
-                baseline_generation: Some(9),
-                baseline_known: true,
-                ..Default::default()
             }),
         );
 
@@ -2298,15 +2287,7 @@ mod tests {
         assert_eq!(progress.objects_scanned, 8);
         assert_eq!(progress.objects_healed, 5);
         assert_eq!(progress.objects_failed, 1);
-        assert_eq!(progress.skipped_objects, 2);
-        assert_eq!(progress.objects_total_count, 10);
-        assert_eq!(progress.objects_total_size, 2000);
         assert_eq!(progress.bytes_processed, 1000);
-        assert_eq!(progress.progress_percentage, 50.0);
-        assert_eq!(progress.progress_state, rustfs_heal::heal::progress::HealProgressState::Running);
-        assert_eq!(progress.baseline_generation, Some(9));
-        assert!(progress.baseline_known);
-        assert!(!progress.counter_unknown);
 
         assert_eq!(peer_first.state, HealRuntimeState::Active);
         assert_eq!(peer_first.operations, local_first.operations);
@@ -2346,7 +2327,6 @@ mod tests {
             objects_healed: value,
             objects_failed: value,
             bytes_processed: value,
-            ..Default::default()
         };
         let saturated = NodeHealStatusSnapshot::for_test(
             true,

rustfs/src/storage/options.rs

@@ -554,10 +554,11 @@ fn apply_replication_timestamps_from_headers(headers: &HeaderMap<HeaderValue>, o
 
     // Persist into the internal metadata keys so a later outbound replication
     // pass (replication_target_boundary) reads the source's modification
-    // times instead of falling back to mod_time.
-    // TODO(P1-6): receiver-side LWW is still missing — when the stored
-    // per-category timestamp is newer than the inbound one, the existing
-    // tags/retention/legal-hold should win instead of being overwritten.
+    // times instead of falling back to mod_time. Receiver-side LWW happens at
+    // the set layer under the object write lock
+    // (ecstore set_disk::ops::object::merge_replication_metadata_lww,
+    // rustfs/backlog#1953): a category whose stored timestamp is newer than
+    // the inbound one keeps the local values.
     for (timestamp, suffix) in [
         (opts.replication_tagging_timestamp, SUFFIX_TAGGING_TIMESTAMP),
         (opts.replication_retention_timestamp, SUFFIX_OBJECTLOCK_RETENTION_TIMESTAMP),

rustfs/src/storage/rpc/node_service.rs

@@ -1912,7 +1912,7 @@ impl Node for NodeService {
 
     async fn background_heal_status(
         &self,
-        request: Request<BackgroundHealStatusRequest>,
+        _request: Request<BackgroundHealStatusRequest>,
     ) -> Result<Response<BackgroundHealStatusResponse>, Status> {
         if self.resolve_object_store().is_none() {
             return Ok(Response::new(BackgroundHealStatusResponse {
@@ -1922,7 +1922,7 @@ impl Node for NodeService {
             }));
         }
         let snapshot = heal::capture_node_heal_status(rustfs_scanner::scanner::BackgroundHealInfo::default()).await;
-        match heal::encode_node_heal_status(&snapshot, request.into_inner().protocol_version) {
+        match heal::encode_node_heal_status(&snapshot) {
             Ok(bg_heal_state) => Ok(Response::new(BackgroundHealStatusResponse {
                 success: true,
                 bg_heal_state: bg_heal_state.into(),

rustfs/src/storage/rpc/node_service/heal.rs

@@ -25,8 +25,7 @@ use std::io::Cursor;
 
 use super::super::encode_msgpack_map;
 
-const NODE_HEAL_STATUS_PREVIOUS_VERSION: u8 = 1;
-const NODE_HEAL_STATUS_VERSION: u8 = 2;
+const NODE_HEAL_STATUS_VERSION: u8 = 1;
 const NODE_HEAL_STATUS_MAX_SIZE: usize = 64 * 1024;
 const NODE_REPLACEMENT_RECOVERY_STATUS_VERSION: u8 = 1;
 const NODE_REPLACEMENT_RECOVERY_STATUS_MAX_SIZE: usize = 64 * 1024;
@@ -173,38 +172,13 @@ pub(crate) fn heal_topology_fingerprint(endpoint_pools: &EndpointServerPools) ->
     Ok(hex_simd::encode_to_string(hasher.finalize(), hex_simd::AsciiCase::Lower))
 }
 
-pub(crate) type NodeHealProgress = rustfs_heal::HealProgress;
-
-#[derive(Debug, Clone, Serialize, Deserialize)]
+#[derive(Debug, Clone, Default, PartialEq, Eq, Serialize, Deserialize)]
 #[serde(rename_all = "camelCase", deny_unknown_fields)]
-struct NodeHealProgressV1 {
-    objects_scanned: u64,
-    objects_healed: u64,
-    objects_failed: u64,
-    bytes_processed: u64,
-}
-
-impl From<&NodeHealProgress> for NodeHealProgressV1 {
-    fn from(progress: &NodeHealProgress) -> Self {
-        Self {
-            objects_scanned: progress.objects_scanned,
-            objects_healed: progress.objects_healed,
-            objects_failed: progress.objects_failed,
-            bytes_processed: progress.bytes_processed,
-        }
-    }
-}
-
-impl From<NodeHealProgressV1> for NodeHealProgress {
-    fn from(progress: NodeHealProgressV1) -> Self {
-        Self {
-            objects_scanned: progress.objects_scanned,
-            objects_healed: progress.objects_healed,
-            objects_failed: progress.objects_failed,
-            bytes_processed: progress.bytes_processed,
-            ..Default::default()
-        }
-    }
+pub(crate) struct NodeHealProgress {
+    pub objects_scanned: u64,
+    pub objects_healed: u64,
+    pub objects_failed: u64,
+    pub bytes_processed: u64,
 }
 
 #[derive(Debug, Clone, Serialize, Deserialize)]
@@ -246,48 +220,6 @@ pub(crate) struct NodeHealStatusSnapshot {
     pub progress: Option<NodeHealProgress>,
 }
 
-#[derive(Debug, Clone, Serialize, Deserialize)]
-#[serde(rename_all = "camelCase", deny_unknown_fields)]
-struct NodeHealStatusSnapshotV1 {
-    version: u8,
-    services_enabled: bool,
-    initialized: bool,
-    info: NodeHealInfo,
-    operations: HealOperationsSnapshot,
-    progress: Option<NodeHealProgressV1>,
-}
-
-impl From<&NodeHealStatusSnapshot> for NodeHealStatusSnapshotV1 {
-    fn from(snapshot: &NodeHealStatusSnapshot) -> Self {
-        Self {
-            version: NODE_HEAL_STATUS_PREVIOUS_VERSION,
-            services_enabled: snapshot.services_enabled,
-            initialized: snapshot.initialized,
-            info: snapshot.info.clone(),
-            operations: snapshot.operations,
-            progress: snapshot.progress.as_ref().map(NodeHealProgressV1::from),
-        }
-    }
-}
-
-impl From<NodeHealStatusSnapshotV1> for NodeHealStatusSnapshot {
-    fn from(snapshot: NodeHealStatusSnapshotV1) -> Self {
-        Self {
-            version: snapshot.version,
-            services_enabled: snapshot.services_enabled,
-            initialized: snapshot.initialized,
-            info: snapshot.info,
-            operations: snapshot.operations,
-            progress: snapshot.progress.map(NodeHealProgress::from),
-        }
-    }
-}
-
-#[derive(Deserialize)]
-struct NodeHealStatusVersion {
-    version: u8,
-}
-
 impl NodeHealStatusSnapshot {
     #[cfg(test)]
     pub(crate) fn for_test(
@@ -317,7 +249,14 @@ impl NodeHealStatusSnapshot {
 }
 
 pub(crate) async fn capture_node_heal_status(info: BackgroundHealInfo) -> NodeHealStatusSnapshot {
-    let progress = rustfs_heal::current_heal_progress_snapshot().await;
+    let progress = rustfs_heal::current_heal_progress_snapshot()
+        .await
+        .map(|progress| NodeHealProgress {
+            objects_scanned: progress.objects_scanned,
+            objects_healed: progress.objects_healed,
+            objects_failed: progress.objects_failed,
+            bytes_processed: progress.bytes_processed,
+        });
 
     NodeHealStatusSnapshot {
         version: NODE_HEAL_STATUS_VERSION,
@@ -329,44 +268,23 @@ pub(crate) async fn capture_node_heal_status(info: BackgroundHealInfo) -> NodeHe
     }
 }
 
-pub(crate) fn encode_node_heal_status(snapshot: &NodeHealStatusSnapshot, protocol_version: u32) -> Result<Vec<u8>, String> {
-    let encoded = if protocol_version < rustfs_protos::BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION {
-        encode_msgpack_map(&NodeHealStatusSnapshotV1::from(snapshot))
-    } else {
-        let mut snapshot = snapshot.clone();
-        snapshot.version = NODE_HEAL_STATUS_VERSION;
-        encode_msgpack_map(&snapshot)
-    };
-    encoded.map_err(|err| format!("failed to encode node heal status: {err}"))
+pub(crate) fn encode_node_heal_status(snapshot: &NodeHealStatusSnapshot) -> Result<Vec<u8>, String> {
+    encode_msgpack_map(snapshot).map_err(|err| format!("failed to encode node heal status: {err}"))
 }
 
 pub(crate) fn decode_node_heal_status(data: &[u8]) -> Result<NodeHealStatusSnapshot, String> {
     if data.len() > NODE_HEAL_STATUS_MAX_SIZE {
         return Err("node heal status exceeds size limit".to_string());
     }
-    let decode_version = || {
-        let mut deserializer = Deserializer::new(Cursor::new(data));
-        NodeHealStatusVersion::deserialize(&mut deserializer)
-            .map(|version| (version, deserializer))
-            .map_err(|err| format!("failed to decode node heal status: {err}"))
-    };
-    let (version, deserializer) = decode_version()?;
-    if usize::try_from(deserializer.get_ref().position()).ok() != Some(data.len()) {
-        return Err("node heal status contains trailing data".to_string());
-    }
-
     let mut deserializer = Deserializer::new(Cursor::new(data));
-    let snapshot = match version.version {
-        NODE_HEAL_STATUS_PREVIOUS_VERSION => {
-            NodeHealStatusSnapshotV1::deserialize(&mut deserializer).map(NodeHealStatusSnapshot::from)
-        }
-        NODE_HEAL_STATUS_VERSION => NodeHealStatusSnapshot::deserialize(&mut deserializer),
-        version => return Err(format!("unsupported node heal status version: {version}")),
-    }
-    .map_err(|err| format!("failed to decode node heal status: {err}"))?;
+    let snapshot = NodeHealStatusSnapshot::deserialize(&mut deserializer)
+        .map_err(|err| format!("failed to decode node heal status: {err}"))?;
     if usize::try_from(deserializer.get_ref().position()).ok() != Some(data.len()) {
         return Err("node heal status contains trailing data".to_string());
     }
+    if snapshot.version != NODE_HEAL_STATUS_VERSION {
+        return Err(format!("unsupported node heal status version: {}", snapshot.version));
+    }
     Ok(snapshot)
 }
 
@@ -469,10 +387,9 @@ pub(crate) fn decode_node_replacement_recovery_status(data: &[u8]) -> Result<Nod
 #[cfg(test)]
 mod tests {
     use super::{
-        NODE_HEAL_STATUS_MAX_SIZE, NODE_HEAL_STATUS_PREVIOUS_VERSION, NODE_HEAL_STATUS_VERSION, NodeHealProgress,
-        NodeHealStatusSnapshot, NodeReplacementRecoveryStatusSnapshot, decode_node_heal_status,
-        decode_node_replacement_recovery_status, encode_node_heal_status, encode_node_replacement_recovery_status,
-        heal_control_coordinator, heal_topology_fingerprint,
+        NODE_HEAL_STATUS_MAX_SIZE, NODE_HEAL_STATUS_VERSION, NodeHealProgress, NodeHealStatusSnapshot,
+        NodeReplacementRecoveryStatusSnapshot, decode_node_heal_status, decode_node_replacement_recovery_status,
+        encode_node_heal_status, encode_node_replacement_recovery_status, heal_control_coordinator, heal_topology_fingerprint,
     };
     use crate::storage::storage_api::{
         Endpoint,
@@ -616,72 +533,20 @@ mod tests {
                 ..Default::default()
             },
             Some(NodeHealProgress {
-                kind: rustfs_heal::heal::progress::HealProgressKind::ObjectSweep,
                 objects_scanned: 7,
                 objects_healed: 5,
                 objects_failed: 1,
-                skipped_objects: 1,
-                objects_total_count: 10,
-                objects_total_size: 2048,
                 bytes_processed: 1024,
-                progress_percentage: 50.0,
-                progress_state: rustfs_heal::heal::progress::HealProgressState::Running,
-                baseline_generation: Some(42),
-                baseline_known: true,
-                ..Default::default()
             }),
         );
 
-        let encoded = encode_node_heal_status(&snapshot, rustfs_protos::BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION)
-            .expect("snapshot should encode");
+        let encoded = encode_node_heal_status(&snapshot).expect("snapshot should encode");
         let decoded = decode_node_heal_status(&encoded).expect("snapshot should decode");
         assert_eq!(decoded.version, NODE_HEAL_STATUS_VERSION);
         assert_eq!(decoded.operations.queue_length, 2);
         assert_eq!(decoded.progress, snapshot.progress);
     }
 
-    #[test]
-    fn node_heal_status_v1_encoding_preserves_rolling_compatibility() {
-        let snapshot = NodeHealStatusSnapshot::for_test(
-            true,
-            true,
-            BackgroundHealInfo::default(),
-            HealOperationsSnapshot::default(),
-            Some(NodeHealProgress {
-                objects_scanned: 7,
-                objects_healed: 5,
-                objects_failed: 1,
-                skipped_objects: 3,
-                bytes_processed: 1024,
-                progress_state: rustfs_heal::heal::progress::HealProgressState::Running,
-                baseline_known: true,
-                ..Default::default()
-            }),
-        );
-
-        let encoded =
-            encode_node_heal_status(&snapshot, u32::from(NODE_HEAL_STATUS_PREVIOUS_VERSION)).expect("v1 snapshot should encode");
-        let wire: serde_json::Value = rmp_serde::from_slice(&encoded).expect("v1 snapshot should decode as JSON");
-        let progress = wire["progress"].as_object().expect("v1 progress should be a map");
-        assert_eq!(wire["version"], NODE_HEAL_STATUS_PREVIOUS_VERSION);
-        assert_eq!(progress.len(), 4);
-        assert_eq!(progress["objectsScanned"], 7);
-        assert!(!progress.contains_key("skippedObjects"));
-
-        let decoded = decode_node_heal_status(&encoded).expect("v1 snapshot should decode");
-        let progress = decoded.progress.as_ref().expect("v1 progress should be present");
-        assert_eq!(decoded.version, NODE_HEAL_STATUS_PREVIOUS_VERSION);
-        assert_eq!(progress.objects_scanned, 7);
-        assert_eq!(progress.progress_state, rustfs_heal::heal::progress::HealProgressState::Unknown);
-        assert!(!progress.baseline_known);
-
-        let upgraded = encode_node_heal_status(&decoded, rustfs_protos::BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION)
-            .expect("decoded v1 snapshot should upgrade to v2");
-        let upgraded = decode_node_heal_status(&upgraded).expect("upgraded snapshot should decode");
-        assert_eq!(upgraded.version, NODE_HEAL_STATUS_VERSION);
-        assert_eq!(upgraded.progress.as_ref(), Some(progress));
-    }
-
     #[test]
     fn node_heal_status_rejects_unknown_version() {
         let mut snapshot = NodeHealStatusSnapshot::for_test(
@@ -693,7 +558,7 @@ mod tests {
         );
         snapshot.version += 1;
 
-        let encoded = rmp_serde::to_vec_named(&snapshot).expect("snapshot should encode");
+        let encoded = encode_node_heal_status(&snapshot).expect("snapshot should encode");
         let err = decode_node_heal_status(&encoded).expect_err("unknown version should fail closed");
         assert!(err.contains("unsupported node heal status version"));
     }
@@ -714,22 +579,13 @@ mod tests {
                 "activeBySource": {"scanner": 0, "admin": 1, "autoHeal": 0, "internal": 0, "readRepair": 0},
                 "retryingBySource": {"scanner": 0, "admin": 0, "autoHeal": 0, "internal": 0, "readRepair": 0}
             },
-            "progress": {
-                "objectsScanned": 7,
-                "objectsHealed": 5,
-                "objectsFailed": 1,
-                "bytesProcessed": 1024
-            }
+            "progress": null
         });
         let encoded = rmp_serde::to_vec_named(&fixture).expect("fixture should encode");
         let decoded = decode_node_heal_status(&encoded).expect("fixed v1 fixture should decode");
         assert_eq!(decoded.info().bitrot_start_cycle, 9);
         assert_eq!(decoded.operations.queue_length, 2);
         assert_eq!(decoded.operations.queued_by_source.mrf, 0);
-        let progress = decoded.progress.expect("legacy progress should decode");
-        assert_eq!(progress.objects_scanned, 7);
-        assert!(!progress.baseline_known);
-        assert_eq!(progress.progress_state, rustfs_heal::heal::progress::HealProgressState::Unknown);
     }
 
     #[test]
@@ -775,8 +631,7 @@ mod tests {
             HealOperationsSnapshot::default(),
             None,
         );
-        let encoded = encode_node_heal_status(&snapshot, rustfs_protos::BACKGROUND_HEAL_STATUS_PROTOCOL_VERSION)
-            .expect("snapshot should encode");
+        let encoded = encode_node_heal_status(&snapshot).expect("snapshot should encode");
         let encoded_json: serde_json::Value = rmp_serde::from_slice(&encoded).expect("encoded snapshot should decode as JSON");
         assert_eq!(encoded_json["info"]["bitrotStartTime"], serde_json::json!("2023-11-14T22:13:20.123456Z"));
     }