Merge remote-tracking branch 'origin/main' into codex/resolve-pr-6352

# Conflicts:
#	crates/scanner/src/scanner/tests.rs

.github/workflows/mint.yml

@@ -45,6 +45,13 @@
 # docker-capable self-hosted `dind-sm-standard-2` label was the alternative but
 # has fewer cores and reintroduces fleet-state risk for no reliability gain.
 
+# DISABLED. This workflow is switched off in the repository's Actions settings
+# (state: disabled_manually) and does not run on any trigger, including its cron
+# and workflow_dispatch. That state lives in GitHub's UI and is invisible when
+# reading this file, which has already misled at least one audit — hence this
+# banner. Re-enabling is a UI action; anyone doing so should first check that the
+# workflow still matches the current CI layout. See rustfs/backlog#1603.
+#
 name: mint
 
 on:
@@ -63,9 +70,9 @@ on:
           - core
           - full
       mint-image:
-        description: "Mint image reference (empty = pinned default)"
+        description: "Mint image reference"
         required: false
-        default: ""
+        default: "minio/mint:edge"
   schedule:
     # Weekly, after the Sunday s3-tests full sweep (starts 02:00 UTC, up to
     # 3h) has finished, so the two never contend for the same runner pool.

crates/common/src/metrics.rs

@@ -901,6 +901,10 @@ pub struct Metrics {
     scanner_cycle_max_duration_millis: AtomicU64,
     scanner_cycle_max_objects: AtomicU64,
     scanner_cycle_max_directories: AtomicU64,
+    scanner_cycle_timeout_total: AtomicU64,
+    scanner_cycle_recovery_required_total: AtomicU64,
+    scanner_cycle_last_progress_age_seconds: AtomicU64,
+    scanner_leader_lease_without_progress: AtomicBool,
     scanner_bitrot_cycle_enabled: AtomicBool,
     scanner_bitrot_cycle_millis: AtomicU64,
     scanner_checkpoint: Mutex<Option<ScannerCheckpointReport>>,
@@ -1370,6 +1374,14 @@ pub struct ScannerMetricsReport {
     #[serde(default)]
     pub cycle_max_directories: u64,
     #[serde(default)]
+    pub cycle_timeout_total: u64,
+    #[serde(default)]
+    pub cycle_recovery_required_total: u64,
+    #[serde(default)]
+    pub cycle_last_progress_age: u64,
+    #[serde(default)]
+    pub leader_lease_without_progress: bool,
+    #[serde(default)]
     pub bitrot_cycle_enabled: bool,
     #[serde(default)]
     pub bitrot_cycle_seconds: f64,
@@ -1430,6 +1442,9 @@ const OTEL_SCANNER_BUCKETS_SCANNED: &str = "rustfs_scanner_buckets_scanned_total
 const OTEL_SCANNER_CYCLES: &str = "rustfs_scanner_cycles_total";
 const OTEL_SCANNER_CYCLE_DURATION_SECONDS: &str = "rustfs_scanner_cycle_duration_seconds";
 const OTEL_SCANNER_BUCKET_DRIVE_DURATION_SECONDS: &str = "rustfs_scanner_bucket_drive_duration_seconds";
+const OTEL_SCANNER_CYCLE_TIMEOUT_TOTAL: &str = "rustfs_scanner_cycle_timeout_total";
+const OTEL_SCANNER_CYCLE_LAST_PROGRESS_AGE: &str = "rustfs_scanner_cycle_last_progress_age";
+const OTEL_SCANNER_LEADER_LEASE_WITHOUT_PROGRESS: &str = "rustfs_scanner_leader_lease_without_progress";
 
 fn scan_cycle_result_label(result: u8) -> &'static str {
     match result {
@@ -1913,6 +1928,10 @@ impl Metrics {
             scanner_cycle_max_duration_millis: AtomicU64::new(0),
             scanner_cycle_max_objects: AtomicU64::new(0),
             scanner_cycle_max_directories: AtomicU64::new(0),
+            scanner_cycle_timeout_total: AtomicU64::new(0),
+            scanner_cycle_recovery_required_total: AtomicU64::new(0),
+            scanner_cycle_last_progress_age_seconds: AtomicU64::new(0),
+            scanner_leader_lease_without_progress: AtomicBool::new(false),
             scanner_bitrot_cycle_enabled: AtomicBool::new(false),
             scanner_bitrot_cycle_millis: AtomicU64::new(0),
             scanner_checkpoint: Mutex::new(None),
@@ -2412,12 +2431,29 @@ impl Metrics {
             .store(cycle_max_objects.unwrap_or_default(), Ordering::Relaxed);
         self.scanner_cycle_max_directories
             .store(cycle_max_directories.unwrap_or_default(), Ordering::Relaxed);
+        self.scanner_leader_lease_without_progress.store(false, Ordering::Relaxed);
+        self.scanner_cycle_last_progress_age_seconds.store(0, Ordering::Relaxed);
+        metrics::gauge!(OTEL_SCANNER_LEADER_LEASE_WITHOUT_PROGRESS).set(0.0);
+        metrics::gauge!(OTEL_SCANNER_CYCLE_LAST_PROGRESS_AGE).set(0.0);
         self.scanner_bitrot_cycle_enabled
             .store(bitrot_cycle.is_some(), Ordering::Relaxed);
         self.scanner_bitrot_cycle_millis
             .store(bitrot_cycle.map(duration_millis_saturated).unwrap_or_default(), Ordering::Relaxed);
     }
 
+    pub fn record_scanner_cycle_timeout(&self, recovery_required: bool, progress_age: Duration) {
+        self.scanner_cycle_timeout_total.fetch_add(1, Ordering::Relaxed);
+        if recovery_required {
+            self.scanner_cycle_recovery_required_total.fetch_add(1, Ordering::Relaxed);
+        }
+        self.scanner_cycle_last_progress_age_seconds
+            .store(progress_age.as_secs(), Ordering::Relaxed);
+        self.scanner_leader_lease_without_progress.store(true, Ordering::Relaxed);
+        metrics::counter!(OTEL_SCANNER_CYCLE_TIMEOUT_TOTAL).increment(1);
+        metrics::gauge!(OTEL_SCANNER_CYCLE_LAST_PROGRESS_AGE).set(progress_age.as_secs_f64());
+        metrics::gauge!(OTEL_SCANNER_LEADER_LEASE_WITHOUT_PROGRESS).set(1.0);
+    }
+
     pub fn record_scanner_set_scan_state(&self, concurrency_limit: Option<usize>, queued: Option<usize>, active: Option<usize>) {
         if let Some(concurrency_limit) = concurrency_limit {
             self.scanner_set_scan_concurrency_limit
@@ -3265,6 +3301,10 @@ impl Metrics {
         m.cycle_max_duration_seconds = self.scanner_cycle_max_duration_millis.load(Ordering::Relaxed) as f64 / 1000.0;
         m.cycle_max_objects = self.scanner_cycle_max_objects.load(Ordering::Relaxed);
         m.cycle_max_directories = self.scanner_cycle_max_directories.load(Ordering::Relaxed);
+        m.cycle_timeout_total = self.scanner_cycle_timeout_total.load(Ordering::Relaxed);
+        m.cycle_recovery_required_total = self.scanner_cycle_recovery_required_total.load(Ordering::Relaxed);
+        m.cycle_last_progress_age = self.scanner_cycle_last_progress_age_seconds.load(Ordering::Relaxed);
+        m.leader_lease_without_progress = self.scanner_leader_lease_without_progress.load(Ordering::Relaxed);
         m.bitrot_cycle_enabled = self.scanner_bitrot_cycle_enabled.load(Ordering::Relaxed);
         m.bitrot_cycle_seconds = self.scanner_bitrot_cycle_millis.load(Ordering::Relaxed) as f64 / 1000.0;
         m.scan_checkpoint = match self.scanner_checkpoint.lock() {
@@ -4926,4 +4966,20 @@ mod tests {
         assert!(!report.bitrot_cycle_enabled);
         assert_eq!(report.bitrot_cycle_seconds, 0.0);
     }
+
+    #[tokio::test]
+    async fn scanner_cycle_timeout_metrics_reset_for_a_new_cycle() {
+        let metrics = Metrics::new();
+        metrics.record_scanner_cycle_timeout(true, Duration::from_secs(17));
+        let timed_out = metrics.report().await;
+        assert_eq!(timed_out.cycle_timeout_total, 1);
+        assert_eq!(timed_out.cycle_last_progress_age, 17);
+        assert!(timed_out.leader_lease_without_progress);
+
+        metrics.record_scanner_cycle_config(Duration::from_secs(60), None, Some(Duration::from_secs(1)), None, None);
+        let current = metrics.report().await;
+        assert_eq!(current.cycle_timeout_total, 1);
+        assert_eq!(current.cycle_last_progress_age, 0);
+        assert!(!current.leader_lease_without_progress);
+    }
 }

crates/config/README.md

@@ -84,6 +84,12 @@ Current guidance:
 - `RUSTFS_SCANNER_CYCLE_MAX_OBJECTS` (canonical)
 - `RUSTFS_SCANNER_CYCLE_MAX_DIRECTORIES` (canonical)
 
+Scanner cycle budget controls:
+
+- When `RUSTFS_SCANNER_CYCLE_MAX_DURATION_SECS` is unset, the finite default is 1800 seconds (30 minutes), matching the scanner benchmark guidance.
+- An explicit `0` preserves the compatibility behavior of an unbounded runtime budget. Object and directory budgets likewise remain unbounded when explicitly set to `0`.
+- A timed-out cycle cancels cooperative scanner work, then fences its leader epoch before releasing the lease. An uncooperative I/O operation is dropped after the bounded shutdown window; its cursor is not claimed to be durable and the scanner reports `recovery-required` when the worker cannot stop cooperatively, the cycle state was not confirmed durable, or epoch fencing cannot be persisted.
+
 ## Mmap read environment aliases
 
 - `RUSTFS_OBJECT_MMAP_READ_ENABLE` (canonical)

crates/config/src/constants/scanner.rs

@@ -143,9 +143,12 @@ pub const ENV_SCANNER_MAX_WAIT_SECS: &str = "RUSTFS_SCANNER_MAX_WAIT_SECS";
 /// Default scanner speed preset.
 pub const DEFAULT_SCANNER_SPEED: &str = "default";
 
-/// Default scanner cycle runtime budget.
-/// `0` keeps the existing unbounded per-cycle behavior.
-pub const DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS: u64 = 0;
+/// Default scanner cycle runtime budget when no override is configured.
+///
+/// An explicit `0` remains the compatibility escape hatch for an unbounded
+/// cycle. Keeping the unset default finite prevents a stalled scanner I/O
+/// operation from holding the leader lease forever.
+pub const DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS: u64 = 30 * 60;
 
 /// Default scanner per-cycle object budget.
 /// `0` keeps the existing unbounded per-cycle behavior.

crates/ecstore/src/api/mod.rs

@@ -317,6 +317,8 @@ pub mod config {
 }
 
 pub mod data_usage {
+    #[cfg(feature = "test-util")]
+    pub use crate::data_usage::seed_bucket_usage_memory_for_test;
     pub use crate::data_usage::{
         DATA_USAGE_CACHE_NAME, apply_bucket_usage_memory_overlay, compute_bucket_usage,
         init_compression_total_memory_from_backend, invalidate_admin_data_usage_snapshot_cache,
@@ -328,8 +330,6 @@ pub mod data_usage {
         remove_bucket_usage_from_backend, replace_bucket_usage_memory_from_info, store_compression_total_in_backend,
         store_data_usage_in_backend,
     };
-    #[cfg(feature = "test-util")]
-    pub use crate::data_usage::{get_bucket_usage_memory, seed_bucket_usage_memory_for_test};
 }
 
 pub mod disk {

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

@@ -2855,7 +2855,7 @@ fn replicate_object_info_from_object_info(
         .map(|v| OffsetDateTime::parse(&v, &Rfc3339).unwrap_or(OffsetDateTime::UNIX_EPOCH));
     let mut rstate = oi.replication_state();
     rstate.replicate_decision_str = dsc.to_string();
-    let asz = oi.get_actual_size_or_physical();
+    let asz = oi.get_actual_size().unwrap_or_default();
     let ssec = replication_object_is_ssec_encrypted(&oi.user_defined);
     let checksum = if ssec { oi.checksum.clone() } else { None };
 

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

@@ -1412,7 +1412,7 @@ pub async fn get_heal_replicate_object_info(oi: &ObjectInfo, rcfg: &ReplicationC
     };
     let mut replication_state = oi.replication_state();
     replication_state.replicate_decision_str = dsc.to_string();
-    let actual_size = oi.get_actual_size_or_physical();
+    let actual_size = oi.get_actual_size().unwrap_or_default();
 
     Ok(ReplicateObjectInfo {
         name: oi.name.clone(),

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

@@ -389,7 +389,7 @@ fn replication_source_object(object_info: &ObjectInfo) -> ReplicationSourceObjec
             .map(|mod_time| OffsetDateTime::from_unix_timestamp(mod_time.unix_timestamp()).unwrap_or(mod_time)),
         version_id: object_info.version_id.map(|version_id| version_id.to_string()),
         etag: object_info.etag.as_deref(),
-        actual_size: object_info.get_actual_size_or_physical(),
+        actual_size: object_info.get_actual_size().unwrap_or_default(),
         delete_marker: object_info.delete_marker,
         content_type: object_info.content_type.as_deref(),
         content_encoding: object_info.content_encoding.as_deref(),
@@ -542,20 +542,6 @@ mod tests {
         assert!(replication_target_head_is_newer_null_version(&source, &target));
     }
 
-    #[test]
-    fn replication_source_uses_physical_size_for_unknown_compressed_object() {
-        let mut metadata = HashMap::new();
-        rustfs_utils::http::insert_str(&mut metadata, rustfs_utils::http::SUFFIX_COMPRESSION, "zstd".to_string());
-        let source = ObjectInfo {
-            size: 128,
-            actual_size: -1,
-            user_defined: Arc::new(metadata),
-            ..Default::default()
-        };
-
-        assert_eq!(replication_source_object(&source).actual_size, 128);
-    }
-
     #[test]
     fn replication_target_head_content_matches_compare_etag_only() {
         let source = ObjectInfo {

crates/ecstore/src/core/sets.rs

@@ -21,7 +21,7 @@ use crate::storage_api_contracts::{
     bucket::{BucketInfo, BucketOperations, BucketOptions, DeleteBucketOptions, MakeBucketOptions},
     list::{StorageListObjectVersionsInfo, StorageListObjectsV2Info, StorageObjectInfoOrErr, StorageWalkOptions},
     multipart::{CompletePart, ListMultipartsInfo, ListPartsInfo, MultipartInfo, MultipartUploadResult, PartInfo},
-    object::{DeleteAccounting, DeletedObject, ObjectIO as _, ObjectOperations as _, ObjectToDelete},
+    object::{DeletedObject, ObjectIO as _, ObjectOperations as _, ObjectToDelete},
     range::HTTPRangeSpec,
 };
 use crate::{
@@ -414,66 +414,6 @@ fn apply_delete_objects_results(
     }
 }
 
-fn apply_delete_accounting_results(
-    accounting: &mut [Option<DeleteAccounting>],
-    set_objects: &[DelObj],
-    set_accounting: &[Option<DeleteAccounting>],
-) {
-    for (obj, value) in set_objects.iter().zip(set_accounting.iter()) {
-        accounting[obj.orig_idx] = value.clone();
-    }
-}
-
-impl Sets {
-    pub(crate) async fn delete_objects_with_accounting(
-        &self,
-        bucket: &str,
-        objects: Vec<ObjectToDelete>,
-        opts: ObjectOptions,
-    ) -> (Vec<DeletedObject>, Vec<Option<Error>>, Vec<Option<DeleteAccounting>>) {
-        let mut del_objects = vec![DeletedObject::default(); objects.len()];
-        let mut del_errs = vec![None; objects.len()];
-        let mut accounting = vec![None; objects.len()];
-        let mut set_obj_map = HashMap::new();
-
-        for (i, obj) in objects.iter().enumerate() {
-            let idx = self.get_hashed_set_index(obj.object_name.as_str());
-            set_obj_map.entry(idx).or_insert_with(Vec::new).push(DelObj {
-                orig_idx: i,
-                obj: obj.clone(),
-            });
-        }
-
-        let max_concurrent = set_obj_map.len().min(num_cpus::get()).max(1);
-        let semaphore = Arc::new(tokio::sync::Semaphore::new(max_concurrent));
-        let mut futures = FuturesUnordered::new();
-        let bucket = bucket.to_owned();
-
-        for (set_index, set_objects) in set_obj_map {
-            let disks = self.get_disks(set_index);
-            let objects = set_objects.iter().map(|entry| entry.obj.clone()).collect::<Vec<_>>();
-            let bucket = bucket.clone();
-            let opts = opts.clone();
-            let semaphore = semaphore.clone();
-            futures.push(async move {
-                let _permit = semaphore
-                    .acquire_owned()
-                    .await
-                    .expect("delete_objects semaphore should remain open");
-                let (deleted, errors, accounting) = disks.delete_objects_with_accounting(&bucket, objects, opts).await;
-                (set_objects, deleted, errors, accounting)
-            });
-        }
-
-        while let Some((set_objects, deleted, errors, set_accounting)) = futures.next().await {
-            apply_delete_objects_results(&mut del_objects, &mut del_errs, &set_objects, &deleted, errors);
-            apply_delete_accounting_results(&mut accounting, &set_objects, &set_accounting);
-        }
-
-        (del_objects, del_errs, accounting)
-    }
-}
-
 #[async_trait::async_trait]
 impl crate::storage_api_contracts::object::ObjectIO for Sets {
     type Error = Error;
@@ -715,8 +655,65 @@ impl crate::storage_api_contracts::object::ObjectOperations for Sets {
         objects: Vec<ObjectToDelete>,
         opts: ObjectOptions,
     ) -> (Vec<DeletedObject>, Vec<Option<Error>>) {
-        let (deleted, errors, _) = self.delete_objects_with_accounting(bucket, objects, opts).await;
-        (deleted, errors)
+        // Default return value
+        let mut del_objects = vec![DeletedObject::default(); objects.len()];
+
+        let mut del_errs = Vec::with_capacity(objects.len());
+        for _ in 0..objects.len() {
+            del_errs.push(None)
+        }
+
+        let mut set_obj_map = HashMap::new();
+
+        // hash key
+        for (i, obj) in objects.iter().enumerate() {
+            let idx = self.get_hashed_set_index(obj.object_name.as_str());
+
+            if !set_obj_map.contains_key(&idx) {
+                set_obj_map.insert(
+                    idx,
+                    vec![DelObj {
+                        // set_idx: idx,
+                        orig_idx: i,
+                        obj: obj.clone(),
+                    }],
+                );
+            } else if let Some(val) = set_obj_map.get_mut(&idx) {
+                val.push(DelObj {
+                    // set_idx: idx,
+                    orig_idx: i,
+                    obj: obj.clone(),
+                });
+            }
+        }
+
+        let max_concurrent = set_obj_map.len().min(num_cpus::get()).max(1);
+        let semaphore = Arc::new(tokio::sync::Semaphore::new(max_concurrent));
+        let mut futures = FuturesUnordered::new();
+        let bucket = bucket.to_string();
+
+        for (k, v) in set_obj_map {
+            let disks = self.get_disks(k);
+            let objs: Vec<ObjectToDelete> = v.iter().map(|v| v.obj.clone()).collect();
+            let bucket = bucket.clone();
+            let opts = opts.clone();
+            let semaphore = semaphore.clone();
+
+            futures.push(async move {
+                let _permit = semaphore
+                    .acquire_owned()
+                    .await
+                    .expect("delete_objects semaphore should remain open");
+                let (dobjects, errs) = disks.delete_objects(&bucket, objs, opts).await;
+                (v, dobjects, errs)
+            });
+        }
+
+        while let Some((v, dobjects, errs)) = futures.next().await {
+            apply_delete_objects_results(&mut del_objects, &mut del_errs, &v, &dobjects, errs);
+        }
+
+        (del_objects, del_errs)
     }
 
     #[tracing::instrument(skip(self))]

crates/ecstore/src/data_usage/mod.rs

@@ -1391,37 +1391,7 @@ impl BucketUsageAccumulator {
 }
 
 pub fn quota_object_size(object: &ObjectInfo) -> Result<u64, Error> {
-    // A compressed object may carry -1 while the transformed size is unknown
-    // (legacy streaming sentinel). In that case the persisted physical size
-    // is still a valid accounting floor; every other negative value is corrupt.
-    // An explicit negative `actual-size` metadata value is corrupt, however:
-    // the sentinel is only valid in the in-memory/object-part field written by
-    // the legacy streaming path, not as a persisted declared size.
-    let compressed = object.is_compressed();
-    if object.actual_size < -1 || (object.actual_size == -1 && !compressed) {
-        return Err(Error::PartMissingOrCorrupt);
-    }
-    if object
-        .parts
-        .iter()
-        .any(|part| part.actual_size < -1 || (part.actual_size < 0 && !compressed))
-    {
-        return Err(Error::PartMissingOrCorrupt);
-    }
-    let declared_actual_size = rustfs_utils::http::get_str(&object.user_defined, rustfs_utils::http::SUFFIX_ACTUAL_SIZE)
-        .filter(|value| !value.is_empty());
-    if declared_actual_size
-        .as_deref()
-        .and_then(|value| value.parse::<i64>().ok())
-        .is_some_and(|size| size < 0)
-    {
-        return Err(Error::PartMissingOrCorrupt);
-    }
-    let logical_size = match object.get_actual_size().map_err(Error::other)? {
-        size if size == -1 && compressed && declared_actual_size.is_none() => None,
-        size if size >= 0 => Some(u64::try_from(size).map_err(|_| Error::PartMissingOrCorrupt)?),
-        _ => return Err(Error::PartMissingOrCorrupt),
-    };
+    let logical_size = u64::try_from(object.get_actual_size().map_err(Error::other)?).map_err(|_| Error::PartMissingOrCorrupt)?;
     let persisted_part_size = if object.parts.is_empty() {
         u64::try_from(object.size).map_err(|_| Error::PartMissingOrCorrupt)?
     } else {
@@ -1429,8 +1399,12 @@ pub fn quota_object_size(object: &ObjectInfo) -> Result<u64, Error> {
             // Compressed streaming objects persist -1 when the transformed
             // part size is unknown. The physical part size remains a valid
             // quota floor; reject only non-negative values that overflow.
-            let actual_size = if part.actual_size == -1 {
-                0
+            let actual_size = if part.actual_size < 0 {
+                if object.is_compressed() {
+                    0
+                } else {
+                    return Err(Error::PartMissingOrCorrupt);
+                }
             } else {
                 u64::try_from(part.actual_size).map_err(|_| Error::PartMissingOrCorrupt)?
             };
@@ -1438,7 +1412,7 @@ pub fn quota_object_size(object: &ObjectInfo) -> Result<u64, Error> {
             total.checked_add(part_size).ok_or(Error::PartMissingOrCorrupt)
         })?
     };
-    Ok(logical_size.unwrap_or(0).max(persisted_part_size))
+    Ok(logical_size.max(persisted_part_size))
 }
 
 type UsageVersionPage = StorageListObjectVersionsInfo<ObjectInfo>;
@@ -3346,80 +3320,6 @@ mod tests {
         );
     }
 
-    #[test]
-    fn quota_object_size_accepts_compressed_unknown_actual_size_sentinel() {
-        let mut metadata = HashMap::new();
-        rustfs_utils::http::insert_str(
-            &mut metadata,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        let object = ObjectInfo {
-            size: 400,
-            actual_size: -1,
-            user_defined: Arc::new(metadata),
-            ..Default::default()
-        };
-
-        assert_eq!(quota_object_size(&object).expect("compressed sentinel is valid"), 400);
-    }
-
-    #[test]
-    fn quota_object_size_rejects_compressed_part_sum_overflow() {
-        let mut metadata = HashMap::new();
-        rustfs_utils::http::insert_str(
-            &mut metadata,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        let object = ObjectInfo {
-            size: 1,
-            user_defined: Arc::new(metadata),
-            parts: Arc::new(vec![
-                rustfs_filemeta::ObjectPartInfo {
-                    actual_size: i64::MAX,
-                    ..Default::default()
-                },
-                rustfs_filemeta::ObjectPartInfo {
-                    actual_size: 1,
-                    ..Default::default()
-                },
-            ]),
-            ..Default::default()
-        };
-
-        assert!(matches!(quota_object_size(&object), Err(Error::Io(_))));
-    }
-
-    #[test]
-    fn quota_object_size_rejects_negative_values_other_than_the_compressed_sentinel() {
-        let mut metadata = HashMap::new();
-        rustfs_utils::http::insert_str(
-            &mut metadata,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        let corrupt_object = ObjectInfo {
-            size: 400,
-            actual_size: -2,
-            user_defined: Arc::new(metadata.clone()),
-            ..Default::default()
-        };
-        assert!(matches!(quota_object_size(&corrupt_object), Err(Error::PartMissingOrCorrupt)));
-
-        let corrupt_part = ObjectInfo {
-            size: 400,
-            user_defined: Arc::new(metadata),
-            parts: Arc::new(vec![rustfs_filemeta::ObjectPartInfo {
-                size: 400,
-                actual_size: -2,
-                ..Default::default()
-            }]),
-            ..Default::default()
-        };
-        assert!(matches!(quota_object_size(&corrupt_part), Err(Error::PartMissingOrCorrupt)));
-    }
-
     #[tokio::test]
     #[serial]
     async fn live_bucket_usage_refreshes_are_coalesced_only_while_in_flight() {

crates/ecstore/src/object_api/types.rs

@@ -689,9 +689,6 @@ impl ObjectInfo {
     }
 
     pub fn get_actual_size(&self) -> std::io::Result<i64> {
-        if self.actual_size < -1 || (self.actual_size == -1 && !self.is_compressed()) {
-            return Err(std::io::Error::other("invalid negative actual size"));
-        }
         if self.actual_size > 0 {
             return Ok(self.actual_size);
         }
@@ -703,25 +700,10 @@ impl ObjectInfo {
                 let size = size_str.parse::<i64>().map_err(|e| std::io::Error::other(e.to_string()))?;
                 return Ok(size);
             }
-            if self.actual_size == -1 && self.parts.is_empty() {
-                return Ok(-1);
-            }
-            let mut actual_size = 0_i64;
-            let mut unknown = false;
-            for part in self.parts.iter() {
-                match part.actual_size {
-                    -1 => unknown = true,
-                    size if size >= 0 => {
-                        actual_size = actual_size
-                            .checked_add(size)
-                            .ok_or_else(|| std::io::Error::other("compressed actual size overflow"))?;
-                    }
-                    _ => return Err(std::io::Error::other("invalid negative compressed part size")),
-                }
-            }
-            if unknown {
-                return Ok(-1);
-            }
+            let mut actual_size = 0;
+            self.parts.iter().for_each(|part| {
+                actual_size += part.actual_size;
+            });
             if actual_size == 0 && actual_size != self.size {
                 return Err(std::io::Error::other(format!("invalid decompressed size {} {}", actual_size, self.size)));
             }
@@ -736,18 +718,6 @@ impl ObjectInfo {
         Ok(self.size)
     }
 
-    /// Returns a non-negative size for client and replication boundaries.
-    ///
-    /// Compressed legacy metadata can retain the internal `-1` unknown-size
-    /// sentinel. Those boundaries cannot emit a negative length, so they use
-    /// the persisted physical size while quota accounting keeps the sentinel
-    /// distinction in [`crate::data_usage::quota_object_size`].
-    pub fn get_actual_size_or_physical(&self) -> i64 {
-        self.get_actual_size()
-            .map(|size| if size >= 0 { size } else { self.size.max(0) })
-            .unwrap_or_else(|_| self.size.max(0))
-    }
-
     pub fn from_file_info(fi: &FileInfo, bucket: &str, object: &str, versioned: bool) -> ObjectInfo {
         let mut version_id = fi.version_id;
 

crates/ecstore/src/services/metrics_realtime.rs

@@ -256,6 +256,10 @@ fn to_madmin_scanner_metrics(metrics: rustfs_common::metrics::ScannerMetricsRepo
         cycle_max_duration_seconds: metrics.cycle_max_duration_seconds,
         cycle_max_objects: metrics.cycle_max_objects,
         cycle_max_directories: metrics.cycle_max_directories,
+        cycle_timeout_total: metrics.cycle_timeout_total,
+        cycle_recovery_required_total: metrics.cycle_recovery_required_total,
+        cycle_last_progress_age: metrics.cycle_last_progress_age,
+        leader_lease_without_progress: metrics.leader_lease_without_progress,
         bitrot_cycle_enabled: metrics.bitrot_cycle_enabled,
         bitrot_cycle_seconds: metrics.bitrot_cycle_seconds,
         scan_checkpoint: metrics.scan_checkpoint.map(|checkpoint| MadminScannerCheckpointReport {
@@ -611,6 +615,10 @@ mod test {
             current_started: chrono_to_jiff_timestamp(current_started),
             last_cycle_partial_source: "usage".to_string(),
             last_cycle_partial_source_code: 1,
+            cycle_timeout_total: 3,
+            cycle_recovery_required_total: 2,
+            cycle_last_progress_age: 17,
+            leader_lease_without_progress: true,
             partial_cycles_by_source: vec![rustfs_common::metrics::ScannerSourceCycleSnapshot {
                 source: "usage".to_string(),
                 cycles: 2,
@@ -622,6 +630,10 @@ mod test {
         assert_eq!(scanner.current_started, chrono_to_jiff_timestamp(current_started));
         assert_eq!(scanner.last_cycle_partial_source, "usage");
         assert_eq!(scanner.last_cycle_partial_source_code, 1);
+        assert_eq!(scanner.cycle_timeout_total, 3);
+        assert_eq!(scanner.cycle_recovery_required_total, 2);
+        assert_eq!(scanner.cycle_last_progress_age, 17);
+        assert!(scanner.leader_lease_without_progress);
         let usage = scanner
             .partial_cycles_by_source
             .iter()

crates/ecstore/src/set_disk/mod.rs

@@ -97,7 +97,7 @@ use crate::storage_api_contracts::{
         CompletePart, ListMultipartsInfo, ListPartsInfo, MultipartInfo, MultipartOperations as _, MultipartUploadResult, PartInfo,
     },
     namespace::NamespaceLocking as _,
-    object::{DeleteAccounting, DeletedObject, HTTPPreconditions, ObjectIO as _, ObjectOperations as _, ObjectToDelete},
+    object::{DeletedObject, HTTPPreconditions, ObjectIO as _, ObjectOperations as _, ObjectToDelete},
     range::HTTPRangeSpec,
 };
 use crate::store::utils::is_reserved_or_invalid_bucket;

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

@@ -45,7 +45,6 @@ use crate::bucket::replication::{
     DeleteReplicationConfigSnapshot, ReplicationLifecycleBridge, ReplicationStatusType, VersionPurgeStatusType,
     replication_state_to_filemeta, replication_status_from_filemeta, version_purge_status_to_filemeta,
 };
-use crate::data_usage::quota_object_size;
 use crate::diagnostics::get::GetObjectFailureReason;
 use crate::disk::{DataDirDeleteStatus, OldCurrentSize};
 use crate::error::is_err_invalid_upload_id;
@@ -5656,18 +5655,7 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
         objects: Vec<ObjectToDelete>,
         opts: ObjectOptions,
     ) -> (Vec<DeletedObject>, Vec<Option<Error>>) {
-        let (deleted, errors, _) = self.delete_objects_with_accounting(bucket, objects, opts).await;
-        (deleted, errors)
-    }
-
-    async fn delete_objects_with_accounting(
-        &self,
-        bucket: &str,
-        objects: Vec<ObjectToDelete>,
-        opts: ObjectOptions,
-    ) -> (Vec<DeletedObject>, Vec<Option<Error>>, Vec<Option<DeleteAccounting>>) {
         let mut del_objects = vec![DeletedObject::default(); objects.len()];
-        let mut accounting = vec![None; objects.len()];
         let delete_config_snapshot = opts
             .delete_replication_config_snapshot
             .clone()
@@ -5757,7 +5745,7 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
                                 *item = Some(Error::other(message.clone()));
                             }
                         }
-                        return (del_objects, del_errs, accounting);
+                        return (del_objects, del_errs);
                     }
                 },
             }
@@ -5804,22 +5792,6 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
             let source_missing = gerr
                 .as_ref()
                 .is_some_and(|err| is_err_object_not_found(err) || is_err_version_not_found(err));
-            // Resolve accounting from the generation selected under this
-            // object's write lock. A request-layer pre-stat is only an
-            // optimization and cannot identify a concurrent overwrite.
-            let (accounting_size, accounting_version_id, removed_current_object) = if source_missing
-                || dobj.synthetic_version_id
-                || set_disk_delete_creates_delete_marker(&check_opts)
-                || goi.delete_marker
-            {
-                (None, None, false)
-            } else {
-                (
-                    quota_object_size(&goi).ok(),
-                    goi.version_id.filter(|version_id| !version_id.is_nil()),
-                    (dobj.version_id.is_none() || is_explicit_null_version(dobj.version_id)) && !dobj.synthetic_version_id,
-                )
-            };
             // Normalize both sides before comparing. `goi.version_id` is the
             // client-facing identity, where `from_file_info` synthesizes
             // `Some(Uuid::nil())` for a null version on a versioned or
@@ -5948,12 +5920,7 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
                     },
                     replication_state: vr.replication_state_internal.clone(),
                     ..Default::default()
-                };
-                accounting[i] = Some(DeleteAccounting {
-                    size: accounting_size,
-                    version_id: accounting_version_id,
-                    removed_current_object,
-                });
+                }
             }
 
             // Only add to vers_map if we hold the lock
@@ -5999,7 +5966,7 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
                     });
                 }
             }
-            return (del_objects, del_errs, accounting);
+            return (del_objects, del_errs);
         }
 
         let mut persisted_journal_entries = Vec::with_capacity(journal_entries.len());
@@ -6237,16 +6204,7 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
             }
         }
 
-        // An accounting identity is actionable only when the delete result is
-        // successful. Never let a failed commit (including a partial quorum
-        // failure) reach the request-layer fast delta path.
-        for (index, err) in del_errs.iter().enumerate() {
-            if err.is_some() {
-                accounting[index] = None;
-            }
-        }
-
-        (del_objects, del_errs, accounting)
+        (del_objects, del_errs)
     }
 
     #[tracing::instrument(skip(self))]
@@ -6575,12 +6533,6 @@ impl crate::storage_api_contracts::object::ObjectOperations for SetDisks {
 
         let mut obj_info = ObjectInfo::from_file_info(&dfi, bucket, object, opts.versioned || opts.version_suspended);
         obj_info.size = goi.size;
-        // Keep the committed source metadata on the internal delete result so
-        // the request layer can derive canonical accounting for this exact
-        // generation. Delete responses do not expose these fields.
-        obj_info.actual_size = goi.actual_size;
-        obj_info.user_defined = Arc::clone(&goi.user_defined);
-        obj_info.parts = Arc::clone(&goi.parts);
         obj_info.user_tags = Arc::clone(&goi.user_tags);
         self.invalidate_get_object_metadata_cache(bucket, object).await;
         Ok(obj_info)
@@ -7872,113 +7824,6 @@ mod replication_quota_safety_tests {
         assert_eq!(stored.get_actual_size().expect("stored logical size should parse"), 1);
     }
 
-    #[tokio::test]
-    async fn delete_returns_canonical_compressed_accounting_size() {
-        let (_temp_dirs, disks, set_disks) = hermetic_set_disks(4).await;
-        let bucket = "compressed-delete-accounting";
-        for disk in &disks {
-            disk.make_volume(bucket).await.expect("bucket volume should be created");
-        }
-
-        let mut user_defined = HashMap::new();
-        insert_str(
-            &mut user_defined,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        insert_str(&mut user_defined, SUFFIX_ACTUAL_SIZE, "1000".to_string());
-        let mut reader = PutObjReader::new(
-            HashReader::from_stream(Cursor::new(vec![0x5a; 400]), 400, 1000, None, None, false)
-                .expect("compressed fixture reader should be valid"),
-        );
-        set_disks
-            .put_object(
-                bucket,
-                "object",
-                &mut reader,
-                &ObjectOptions {
-                    user_defined,
-                    ..Default::default()
-                },
-            )
-            .await
-            .expect("compressed object should be written");
-
-        let (deleted, errors, accounting) = set_disks
-            .delete_objects_with_accounting(
-                bucket,
-                vec![ObjectToDelete {
-                    object_name: "object".to_string(),
-                    ..Default::default()
-                }],
-                ObjectOptions {
-                    object_lock_config_snapshot: Some(Arc::new(ObjectLockConfigSnapshot::new(
-                        ObjectLockConfigState::ConfirmedAbsent,
-                    ))),
-                    ..Default::default()
-                },
-            )
-            .await;
-
-        assert!(errors[0].is_none(), "compressed delete should succeed: {:?}", errors[0]);
-        assert!(deleted[0].found, "the committed object must be reported as found");
-        assert_eq!(accounting[0].as_ref().and_then(|value| value.size), Some(1000));
-        assert!(accounting[0].as_ref().is_some_and(|value| value.version_id.is_none()));
-        assert!(accounting[0].as_ref().is_some_and(|value| value.removed_current_object));
-    }
-
-    #[tokio::test]
-    async fn suspended_delete_marker_does_not_return_body_accounting() {
-        let (_temp_dirs, disks, set_disks) = hermetic_set_disks(4).await;
-        let bucket = "suspended-delete-accounting";
-        for disk in &disks {
-            disk.make_volume(bucket).await.expect("bucket volume should be created");
-        }
-
-        let mut user_defined = HashMap::new();
-        insert_str(
-            &mut user_defined,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        insert_str(&mut user_defined, SUFFIX_ACTUAL_SIZE, "1000".to_string());
-        let mut reader = PutObjReader::new(
-            HashReader::from_stream(Cursor::new(vec![0x5a; 400]), 400, 1000, None, None, false)
-                .expect("compressed fixture reader should be valid"),
-        );
-        let suspended_opts = ObjectOptions {
-            version_suspended: true,
-            delete_replication_config_snapshot: Some(Arc::new(DeleteReplicationConfigSnapshot::from_configs_for_test(
-                s3s::dto::VersioningConfiguration {
-                    status: Some(s3s::dto::BucketVersioningStatus::from_static(s3s::dto::BucketVersioningStatus::SUSPENDED)),
-                    ..Default::default()
-                },
-                None,
-            ))),
-            user_defined,
-            object_lock_config_snapshot: Some(Arc::new(ObjectLockConfigSnapshot::new(ObjectLockConfigState::ConfirmedAbsent))),
-            ..Default::default()
-        };
-        set_disks
-            .put_object(bucket, "object", &mut reader, &suspended_opts)
-            .await
-            .expect("compressed object should be written");
-
-        let (deleted, errors, accounting) = set_disks
-            .delete_objects_with_accounting(
-                bucket,
-                vec![ObjectToDelete {
-                    object_name: "object".to_string(),
-                    ..Default::default()
-                }],
-                suspended_opts,
-            )
-            .await;
-        assert!(errors[0].is_none(), "suspended delete should create a marker: {:?}", errors[0]);
-        assert!(deleted[0].delete_marker);
-        assert!(accounting[0].is_none(), "a delete marker must not carry body accounting");
-    }
-
     #[tokio::test]
     async fn direct_put_cannot_persist_a_tiny_logical_size() {
         let (_temp_dirs, disks, set_disks) = hermetic_set_disks(4).await;

crates/ecstore/src/storage_api_contracts/mod.rs

@@ -62,8 +62,8 @@ pub(crate) mod object {
     use super::{Debug, Error, FileInfo, GetObjectReader, ObjectInfo, ObjectOptions, PutObjReader};
     use crate::storage_api_contracts::range::HTTPRangeSpec;
     pub(crate) use rustfs_storage_api::{
-        DeleteAccounting, DeletedObject, HTTPPreconditions, ObjectIO, ObjectLockDeleteOptions, ObjectLockRetentionOptions,
-        ObjectOperations, ObjectPreconditionError, ObjectPreconditionPart, ObjectPreconditionState, ObjectToDelete,
+        DeletedObject, HTTPPreconditions, ObjectIO, ObjectLockDeleteOptions, ObjectLockRetentionOptions, ObjectOperations,
+        ObjectPreconditionError, ObjectPreconditionPart, ObjectPreconditionState, ObjectToDelete,
     };
 
     pub(crate) trait EcstoreObjectIO:

crates/ecstore/src/store/object.rs

@@ -41,7 +41,7 @@ use crate::set_disk::{
 };
 use crate::storage_api_contracts::{
     namespace::NamespaceLocking as _,
-    object::{DeleteAccounting, ObjectIO as _, ObjectOperations as _},
+    object::{ObjectIO as _, ObjectOperations as _},
 };
 use parking_lot::Mutex as ParkingMutex;
 use rustfs_io_metrics::{
@@ -1216,14 +1216,6 @@ fn return_batch_delete_lock_error(objects: &[ObjectToDelete], err: Error) -> (Ve
     (del_objects, del_errs)
 }
 
-fn return_batch_delete_lock_error_with_accounting(
-    objects: &[ObjectToDelete],
-    err: Error,
-) -> (Vec<DeletedObject>, Vec<Option<Error>>, Vec<Option<DeleteAccounting>>) {
-    let (deleted, errors) = return_batch_delete_lock_error(objects, err);
-    (deleted, errors, vec![None; objects.len()])
-}
-
 fn sorted_unique_delete_object_names(objects: &[ObjectToDelete]) -> Vec<&str> {
     let mut object_names: Vec<&str> = objects.iter().map(|object| object.object_name.as_str()).collect();
     object_names.sort_unstable();
@@ -2320,22 +2312,6 @@ impl ECStore {
         result
     }
 
-    pub async fn delete_objects_with_tier_delete_journal_and_accounting(
-        self: &Arc<Self>,
-        bucket: &str,
-        objects: Vec<ObjectToDelete>,
-        opts: ObjectOptions,
-    ) -> (Vec<DeletedObject>, Vec<Option<Error>>, Vec<Option<DeleteAccounting>>) {
-        let result = self
-            .handle_delete_objects_with_journal_and_accounting(bucket, objects, opts, Some(Arc::clone(self)))
-            .await;
-        let success_count = result.1.iter().filter(|err| err.is_none()).count();
-        if success_count > 0 {
-            list_objects::observe_list_objects_mutations(self, bucket, success_count).await;
-        }
-        result
-    }
-
     #[instrument(skip(self))]
     pub(super) async fn handle_delete_object(&self, bucket: &str, object: &str, opts: ObjectOptions) -> Result<ObjectInfo> {
         self.handle_delete_object_with_journal(bucket, object, opts, None).await
@@ -2713,19 +2689,6 @@ impl ECStore {
         opts: ObjectOptions,
         tier_journal_api: Option<Arc<ECStore>>,
     ) -> (Vec<DeletedObject>, Vec<Option<Error>>) {
-        let (deleted, errors, _) = self
-            .handle_delete_objects_with_journal_and_accounting(bucket, objects, opts, tier_journal_api)
-            .await;
-        (deleted, errors)
-    }
-
-    pub(super) async fn handle_delete_objects_with_journal_and_accounting(
-        &self,
-        bucket: &str,
-        objects: Vec<ObjectToDelete>,
-        opts: ObjectOptions,
-        tier_journal_api: Option<Arc<ECStore>>,
-    ) -> (Vec<DeletedObject>, Vec<Option<Error>>, Vec<Option<DeleteAccounting>>) {
         // encode object name
         let objects: Vec<ObjectToDelete> = objects
             .iter()
@@ -2738,7 +2701,6 @@ impl ECStore {
 
         // Default return value
         let mut del_objects = vec![DeletedObject::default(); objects.len()];
-        let mut accounting = vec![None; objects.len()];
 
         let mut del_errs = Vec::with_capacity(objects.len());
         for _ in 0..objects.len() {
@@ -2752,7 +2714,7 @@ impl ECStore {
         } else {
             match self.acquire_bucket_lifecycle_read_lock(bucket).await {
                 Ok(guard) => Some(guard),
-                Err(err) => return return_batch_delete_lock_error_with_accounting(objects.as_slice(), err),
+                Err(err) => return return_batch_delete_lock_error(objects.as_slice(), err),
             }
         };
         if let Some(guard) = _bucket_lifecycle_guard.as_ref() {
@@ -2764,21 +2726,21 @@ impl ECStore {
                 Err(err) => {
                     let message = err.to_string();
                     let errors = (0..objects.len()).map(|_| Some(Error::other(message.clone()))).collect();
-                    return (del_objects, errors, accounting);
+                    return (del_objects, errors);
                 }
             }
         }
         if !is_meta_bucketname(bucket)
             && let Err(err) = get_cached_bucket_incarnation_id_in(&self.ctx, bucket).await
         {
-            return return_batch_delete_lock_error_with_accounting(objects.as_slice(), err);
+            return return_batch_delete_lock_error(objects.as_slice(), err);
         }
         let _object_lock_metadata_guard = if is_meta_bucketname(bucket) {
             None
         } else {
             Some(match acquire_bucket_metadata_transaction_read_lock_in(&self.ctx, bucket).await {
                 Ok(guard) => guard,
-                Err(err) => return return_batch_delete_lock_error_with_accounting(objects.as_slice(), err),
+                Err(err) => return return_batch_delete_lock_error(objects.as_slice(), err),
             })
         };
         if let Some(guard) = _object_lock_metadata_guard.as_ref() {
@@ -2788,7 +2750,7 @@ impl ECStore {
             let (state, incarnation_id, config_revision) =
                 match get_object_lock_config_and_incarnation_from_disk_in(&self.ctx, bucket).await {
                     Ok(snapshot) => snapshot,
-                    Err(err) => return return_batch_delete_lock_error_with_accounting(objects.as_slice(), err),
+                    Err(err) => return return_batch_delete_lock_error(objects.as_slice(), err),
                 };
             opts.object_lock_config_snapshot = Some(Arc::new(ObjectLockConfigSnapshot::for_store_bucket(
                 self.id,
@@ -2804,10 +2766,7 @@ impl ECStore {
         if let (Some(expected), Some(current)) = (opts.expected_bucket_incarnation_id, current_bucket_incarnation_id)
             && expected != current
         {
-            return return_batch_delete_lock_error_with_accounting(
-                objects.as_slice(),
-                StorageError::BucketNotFound(bucket.to_string()),
-            );
+            return return_batch_delete_lock_error(objects.as_slice(), StorageError::BucketNotFound(bucket.to_string()));
         }
         #[cfg(test)]
         if current_bucket_incarnation_id.is_some() {
@@ -2815,7 +2774,7 @@ impl ECStore {
         }
         let _object_lock_guards = match self.acquire_delete_objects_write_locks(bucket, &objects, &mut opts).await {
             Ok(guards) => guards,
-            Err(err) => return return_batch_delete_lock_error_with_accounting(objects.as_slice(), err),
+            Err(err) => return return_batch_delete_lock_error(objects.as_slice(), err),
         };
 
         let mut futures = Vec::with_capacity(self.pools.len());
@@ -2824,24 +2783,22 @@ impl ECStore {
             if self.is_pool_rebalancing(pool.pool_idx).await {
                 continue;
             }
-            futures.push(pool.delete_objects_with_accounting(bucket, objects.clone(), opts.clone()));
+            futures.push(pool.delete_objects(bucket, objects.clone(), opts.clone()));
         }
 
         let results = join_all(futures).await;
 
         for idx in 0..del_objects.len() {
-            for (dels, errs, pool_accounting) in results.iter() {
+            for (dels, errs) in results.iter() {
                 if errs[idx].is_none() && dels[idx].found {
                     del_errs[idx] = None;
                     del_objects[idx] = dels[idx].clone();
-                    accounting[idx] = pool_accounting[idx].clone();
                     break;
                 }
 
                 if del_errs[idx].is_none() {
                     del_errs[idx] = errs[idx].clone();
                     del_objects[idx] = dels[idx].clone();
-                    accounting[idx] = pool_accounting[idx].clone();
                 }
             }
         }
@@ -2850,7 +2807,7 @@ impl ECStore {
             v.object_name = decode_dir_object(&v.object_name);
         });
 
-        (del_objects, del_errs, accounting)
+        (del_objects, del_errs)
 
         // let mut futures = Vec::with_capacity(objects.len());
 

crates/madmin/src/metrics.rs

@@ -689,6 +689,14 @@ pub struct ScannerMetrics {
     pub cycle_max_objects: u64,
     #[serde(rename = "cycle_max_directories", default)]
     pub cycle_max_directories: u64,
+    #[serde(rename = "cycle_timeout_total", default)]
+    pub cycle_timeout_total: u64,
+    #[serde(rename = "cycle_recovery_required_total", default)]
+    pub cycle_recovery_required_total: u64,
+    #[serde(rename = "cycle_last_progress_age", default)]
+    pub cycle_last_progress_age: u64,
+    #[serde(rename = "leader_lease_without_progress", default)]
+    pub leader_lease_without_progress: bool,
     #[serde(rename = "bitrot_cycle_enabled", default)]
     pub bitrot_cycle_enabled: bool,
     #[serde(rename = "bitrot_cycle_seconds", default)]
@@ -764,6 +772,8 @@ impl ScannerMetrics {
             self.cycle_max_duration_seconds = other.cycle_max_duration_seconds;
             self.cycle_max_objects = other.cycle_max_objects;
             self.cycle_max_directories = other.cycle_max_directories;
+            self.cycle_last_progress_age = other.cycle_last_progress_age;
+            self.leader_lease_without_progress = other.leader_lease_without_progress;
             self.bitrot_cycle_enabled = other.bitrot_cycle_enabled;
             self.bitrot_cycle_seconds = other.bitrot_cycle_seconds;
         }
@@ -857,6 +867,12 @@ impl ScannerMetrics {
             .saturating_add(other.last_cycle_replication_checks);
         self.last_cycle_usage_saves = self.last_cycle_usage_saves.saturating_add(other.last_cycle_usage_saves);
         self.failed_cycles = self.failed_cycles.saturating_add(other.failed_cycles);
+        self.cycle_timeout_total = self.cycle_timeout_total.saturating_add(other.cycle_timeout_total);
+        self.cycle_recovery_required_total = self
+            .cycle_recovery_required_total
+            .saturating_add(other.cycle_recovery_required_total);
+        self.cycle_last_progress_age = self.cycle_last_progress_age.max(other.cycle_last_progress_age);
+        self.leader_lease_without_progress |= other.leader_lease_without_progress;
         self.superseded_cycles = self.superseded_cycles.saturating_add(other.superseded_cycles);
         self.partial_cycles_unknown = self.partial_cycles_unknown.saturating_add(other.partial_cycles_unknown);
         self.partial_cycles_runtime = self.partial_cycles_runtime.saturating_add(other.partial_cycles_runtime);

crates/scanner/src/runtime_config.rs

@@ -125,7 +125,10 @@ impl Default for ScannerRuntimeConfig {
             cycle_interval_source: ScannerRuntimeConfigSource::Default,
             bitrot_cycle: Some(Duration::from_secs(DEFAULT_HEAL_BITROT_CYCLE_SECS)),
             bitrot_cycle_source: ScannerRuntimeConfigSource::Default,
-            cycle_budget: ScannerCycleBudgetConfig::default(),
+            cycle_budget: ScannerCycleBudgetConfig {
+                max_duration: Some(Duration::from_secs(DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS)),
+                ..Default::default()
+            },
             cycle_max_duration_source: ScannerRuntimeConfigSource::Default,
             cycle_max_objects_source: ScannerRuntimeConfigSource::Default,
             cycle_max_directories_source: ScannerRuntimeConfigSource::Default,
@@ -374,7 +377,10 @@ fn validate_persisted_scanner_runtime_config(config: &ServerConfig) -> Result<()
     }
     validate_optional_config_u64(scanner_kvs, SCANNER_START_DELAY, "")?;
     validate_optional_config_u64(scanner_kvs, SCANNER_CYCLE, "")?;
-    validate_optional_config_u64(scanner_kvs, SCANNER_CYCLE_MAX_DURATION, DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS)?;
+    if let Some(value) = config_value(scanner_kvs, SCANNER_CYCLE_MAX_DURATION, DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS) {
+        let secs = parse_config_u64(SCANNER_CYCLE_MAX_DURATION, value)?;
+        cycle_duration_from_secs(SCANNER_CYCLE_MAX_DURATION, secs)?;
+    }
     validate_optional_config_u64(scanner_kvs, SCANNER_CYCLE_MAX_OBJECTS, DEFAULT_SCANNER_CYCLE_MAX_OBJECTS)?;
     validate_optional_config_u64(scanner_kvs, SCANNER_CYCLE_MAX_DIRECTORIES, DEFAULT_SCANNER_CYCLE_MAX_DIRECTORIES)?;
     if let Some(value) = config_value(heal_kvs, HEAL_BITROT_CYCLE, DEFAULT_HEAL_BITROT_CYCLE_SECS) {
@@ -436,19 +442,46 @@ fn lookup_max_wait(
     Ok((speed.max_sleep(), speed_source))
 }
 
-fn lookup_optional_seconds(
-    kvs: Option<&KVS>,
-    key: &'static str,
-    env_key: &'static str,
-    default: u64,
-) -> Result<(Option<Duration>, ScannerRuntimeConfigSource), ScannerRuntimeConfigError> {
-    if let Some(secs) = rustfs_utils::get_env_opt_u64(env_key) {
-        return Ok((Some(Duration::from_secs(secs)), ScannerRuntimeConfigSource::Env));
+fn lookup_cycle_duration(kvs: Option<&KVS>) -> Result<(Option<Duration>, ScannerRuntimeConfigSource), ScannerRuntimeConfigError> {
+    match rustfs_utils::get_env_parse_outcome::<u64>(ENV_SCANNER_CYCLE_MAX_DURATION_SECS) {
+        rustfs_utils::EnvParseOutcome::Parsed(secs) => {
+            return cycle_duration_from_secs(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, secs)
+                .map(|duration| (duration, ScannerRuntimeConfigSource::Env));
+        }
+        rustfs_utils::EnvParseOutcome::Invalid => {
+            // Do not include the raw environment value in the typed error:
+            // deployments occasionally put sensitive material in inherited
+            // environment snapshots. The key still identifies the control.
+            return Err(invalid_value(
+                ENV_SCANNER_CYCLE_MAX_DURATION_SECS,
+                "<invalid>",
+                "expected unsigned integer seconds",
+            ));
+        }
+        rustfs_utils::EnvParseOutcome::Absent => {}
     }
-    if let Some(value) = config_value(kvs, key, default) {
-        return parse_config_u64(key, value).map(|secs| (Some(Duration::from_secs(secs)), ScannerRuntimeConfigSource::Config));
+
+    if let Some(value) = config_value(kvs, SCANNER_CYCLE_MAX_DURATION, DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS) {
+        let secs = parse_config_u64(SCANNER_CYCLE_MAX_DURATION, value)?;
+        return cycle_duration_from_secs(SCANNER_CYCLE_MAX_DURATION, secs)
+            .map(|duration| (duration, ScannerRuntimeConfigSource::Config));
     }
-    Ok((None, ScannerRuntimeConfigSource::Default))
+
+    Ok((
+        Some(Duration::from_secs(DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS)),
+        ScannerRuntimeConfigSource::Default,
+    ))
+}
+
+fn cycle_duration_from_secs(key: &'static str, secs: u64) -> Result<Option<Duration>, ScannerRuntimeConfigError> {
+    if secs == 0 {
+        return Ok(None);
+    }
+    let duration = Duration::from_secs(secs);
+    if std::time::Instant::now().checked_add(duration).is_none() {
+        return Err(invalid_value(key, "<overflow>", "duration exceeds the timer range"));
+    }
+    Ok(Some(duration))
 }
 
 fn lookup_start_delay(kvs: Option<&KVS>) -> Result<(Option<Duration>, ScannerRuntimeConfigSource), ScannerRuntimeConfigError> {
@@ -553,12 +586,7 @@ pub(crate) fn lookup_scanner_runtime_config(
         (speed.cycle_interval(), speed_source)
     };
 
-    let (cycle_max_duration, cycle_max_duration_source) = lookup_optional_seconds(
-        scanner_kvs,
-        SCANNER_CYCLE_MAX_DURATION,
-        ENV_SCANNER_CYCLE_MAX_DURATION_SECS,
-        DEFAULT_SCANNER_CYCLE_MAX_DURATION_SECS,
-    )?;
+    let (cycle_max_duration, cycle_max_duration_source) = lookup_cycle_duration(scanner_kvs)?;
     let (cycle_max_objects, cycle_max_objects_source) = lookup_count_budget(
         scanner_kvs,
         SCANNER_CYCLE_MAX_OBJECTS,
@@ -863,10 +891,10 @@ mod tests {
     use rustfs_config::server_config::{Config as ServerConfig, KVS};
     use rustfs_config::{
         DEFAULT_DELIMITER, DEFAULT_HEAL_BITROT_CYCLE_SECS, ENV_SCANNER_BITROT_CYCLE_SECS, ENV_SCANNER_CACHE_SAVE_TIMEOUT_SECS,
-        ENV_SCANNER_CYCLE, ENV_SCANNER_CYCLE_MAX_OBJECTS, ENV_SCANNER_DELAY, ENV_SCANNER_MAX_WAIT_SECS, ENV_SCANNER_SPEED,
-        HEAL_BITROT_CYCLE, HEAL_SUB_SYS, SCANNER_BITROT_CYCLE, SCANNER_CACHE_SAVE_TIMEOUT, SCANNER_CYCLE,
-        SCANNER_CYCLE_MAX_DIRECTORIES, SCANNER_CYCLE_MAX_DURATION, SCANNER_CYCLE_MAX_OBJECTS, SCANNER_DELAY, SCANNER_IDLE_MODE,
-        SCANNER_SPEED, SCANNER_SUB_SYS, ScannerSpeed,
+        ENV_SCANNER_CYCLE, ENV_SCANNER_CYCLE_MAX_DURATION_SECS, ENV_SCANNER_CYCLE_MAX_OBJECTS, ENV_SCANNER_DELAY,
+        ENV_SCANNER_MAX_WAIT_SECS, ENV_SCANNER_SPEED, HEAL_BITROT_CYCLE, HEAL_SUB_SYS, SCANNER_BITROT_CYCLE,
+        SCANNER_CACHE_SAVE_TIMEOUT, SCANNER_CYCLE, SCANNER_CYCLE_MAX_DIRECTORIES, SCANNER_CYCLE_MAX_DURATION,
+        SCANNER_CYCLE_MAX_OBJECTS, SCANNER_DELAY, SCANNER_IDLE_MODE, SCANNER_SPEED, SCANNER_SUB_SYS, ScannerSpeed,
     };
     use std::collections::HashMap;
     use std::time::Duration;
@@ -941,6 +969,50 @@ mod tests {
         });
     }
 
+    #[test]
+    fn scanner_unset_budget_uses_safe_default_but_explicit_zero_is_unbounded() {
+        let config = server_config_with_scanner(&[]);
+        with_var_unset(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, || {
+            let resolved = lookup_scanner_runtime_config(Some(&config)).expect("scanner runtime config");
+            assert_eq!(resolved.cycle_budget.max_duration, Some(Duration::from_secs(1800)));
+            assert_eq!(resolved.cycle_max_duration_source, ScannerRuntimeConfigSource::Default);
+        });
+
+        let config = server_config_with_scanner(&[(SCANNER_CYCLE_MAX_DURATION, "0")]);
+        with_var_unset(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, || {
+            let resolved = lookup_scanner_runtime_config(Some(&config)).expect("scanner runtime config");
+            assert_eq!(resolved.cycle_budget.max_duration, None);
+            assert_eq!(resolved.cycle_max_duration_source, ScannerRuntimeConfigSource::Config);
+        });
+    }
+
+    #[test]
+    fn cycle_budget_invalid_or_overflow_config_is_rejected() {
+        with_var(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, Some("invalid"), || {
+            let error = lookup_scanner_runtime_config(None).expect_err("invalid duration env must be rejected");
+            assert!(error.to_string().contains(ENV_SCANNER_CYCLE_MAX_DURATION_SECS));
+            assert!(error.to_string().contains("<invalid>"));
+            assert!(!error.to_string().contains(": invalid ("));
+        });
+        with_var(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, Some("18446744073709551616"), || {
+            assert!(lookup_scanner_runtime_config(None).is_err());
+        });
+        with_var(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, Some("18446744073709551615"), || {
+            assert!(lookup_scanner_runtime_config(None).is_err());
+        });
+        let config = server_config_with_scanner(&[(SCANNER_CYCLE_MAX_DURATION, "not-a-duration")]);
+        assert!(lookup_scanner_runtime_config(Some(&config)).is_err());
+    }
+
+    #[test]
+    fn scanner_runtime_config_validation_rejects_overflow_persisted_duration() {
+        let config = server_config_with_scanner(&[(SCANNER_CYCLE_MAX_DURATION, "18446744073709551615")]);
+
+        let error = validate_scanner_runtime_config(&config)
+            .expect_err("persisted duration that exceeds the timer range must be rejected");
+        assert!(error.to_string().contains(SCANNER_CYCLE_MAX_DURATION));
+    }
+
     #[test]
     fn scanner_runtime_config_normalizes_persisted_default_speed() {
         let config = server_config_with_scanner(&[(SCANNER_SPEED, "default")]);

crates/scanner/src/scanner.rs

@@ -52,6 +52,7 @@ use rustfs_config::{
 };
 use rustfs_config::{ENV_SCANNER_CYCLE, ENV_SCANNER_SPEED, ENV_SCANNER_START_DELAY_SECS};
 use rustfs_data_usage::observed_data_usage_is_newer;
+use rustfs_lock::NamespaceLockGuard;
 use serde::{Deserialize, Serialize};
 use sha2::{Digest as _, Sha256};
 use tokio::sync::{Notify, mpsc};
@@ -1037,20 +1038,116 @@ fn data_usage_persist_timeout() -> Duration {
     DataUsageCache::persistence_timeout()
 }
 
+#[cfg(not(test))]
+const SCANNER_CYCLE_EPOCH_FENCE_TIMEOUT: Duration = Duration::from_secs(30);
+#[cfg(test)]
+const SCANNER_CYCLE_EPOCH_FENCE_TIMEOUT: Duration = Duration::from_millis(50);
+
+async fn fence_scanner_epoch_after_cycle_timeout<Store, LockLost>(
+    ctx: &CancellationToken,
+    storeapi: Arc<Store>,
+    cycle_info: &mut CurrentCycle,
+    cycle_revision: &mut DataUsageCacheRevision,
+    leader_epoch: &mut u64,
+    lock_lost: LockLost,
+) -> bool
+where
+    Store: ScannerObjectIO,
+    LockLost: Future<Output = ()>,
+{
+    let fence_ctx = ctx.child_token();
+    let claim = claim_scanner_leadership(&fence_ctx, storeapi, cycle_info, cycle_revision, leader_epoch);
+    tokio::pin!(claim);
+    tokio::pin!(lock_lost);
+    tokio::select! {
+        biased;
+        _ = &mut lock_lost => {
+            fence_ctx.cancel();
+            false
+        }
+        result = tokio::time::timeout(SCANNER_CYCLE_EPOCH_FENCE_TIMEOUT, &mut claim) => {
+            result.unwrap_or(false) && !fence_ctx.is_cancelled()
+        }
+    }
+}
+
+struct ScannerCycleDeadlineState<'a> {
+    cycle_info: &'a mut CurrentCycle,
+    cycle_revision: &'a mut DataUsageCacheRevision,
+    leader_epoch: &'a mut u64,
+    cycle_budget: &'a ScannerCycleBudget,
+}
+
+fn cycle_timeout_requires_recovery(worker_stopped: bool, cycle_state_persisted: bool, generation_fenced: bool) -> bool {
+    !worker_stopped || !cycle_state_persisted || !generation_fenced
+}
+
+async fn handle_scanner_cycle_deadline<Store>(
+    ctx: &CancellationToken,
+    storeapi: Arc<Store>,
+    state: ScannerCycleDeadlineState<'_>,
+    worker_stopped: bool,
+    guard: &mut NamespaceLockGuard,
+) where
+    Store: ScannerObjectIO,
+{
+    let fenced = fence_scanner_epoch_after_cycle_timeout(
+        ctx,
+        storeapi,
+        state.cycle_info,
+        state.cycle_revision,
+        state.leader_epoch,
+        guard.lock_lost_notified(),
+    )
+    .await;
+    let cycle_state_persisted = state.cycle_budget.cycle_state_persisted();
+    let recovery_required = cycle_timeout_requires_recovery(worker_stopped, cycle_state_persisted, fenced);
+    warn!(
+        target: "rustfs::scanner",
+        event = EVENT_SCANNER_CYCLE_STATE,
+        component = LOG_COMPONENT_SCANNER,
+        subsystem = LOG_SUBSYSTEM_RUNTIME,
+        state = "cycle_timeout",
+        worker_stopped,
+        cycle_state_persisted,
+        generation_fenced = fenced,
+        recovery_required,
+        "Scanner cycle deadline expired; durable cursor/generation fencing completed when possible"
+    );
+    global_metrics().record_scanner_cycle_timeout(recovery_required, state.cycle_budget.progress_age());
+    // Stop renewing before releasing the lease. A new leader can then claim the
+    // higher persisted generation instead of inheriting the expired worker.
+    guard.release();
+    global_metrics().set_cycle(None).await;
+}
+
 async fn mark_scan_cycle_idle(cycle_info: &mut CurrentCycle, cycle_metrics_guard: &mut ScannerCycleMetricsGuard) {
     cycle_info.current = 0;
     global_metrics().clear_current_scan_mode();
     cycle_metrics_guard.finish(cycle_info.clone()).await;
 }
 
-#[instrument(skip_all)]
-#[hotpath::measure]
+#[cfg(test)]
 async fn run_data_scanner_cycle(
     ctx: &CancellationToken,
     storeapi: &Arc<ECStore>,
     cycle_info: &mut CurrentCycle,
     cycle_revision: &mut DataUsageCacheRevision,
     leader_epoch: u64,
+) -> ScannerCycleOutcome {
+    let cycle_budget = ScannerCycleBudget::new(ctx, scanner_cycle_budget_config());
+    run_data_scanner_cycle_with_budget(ctx, storeapi, cycle_info, cycle_revision, leader_epoch, cycle_budget).await
+}
+
+#[instrument(skip_all)]
+#[hotpath::measure]
+async fn run_data_scanner_cycle_with_budget(
+    ctx: &CancellationToken,
+    storeapi: &Arc<ECStore>,
+    cycle_info: &mut CurrentCycle,
+    cycle_revision: &mut DataUsageCacheRevision,
+    leader_epoch: u64,
+    cycle_budget: Arc<ScannerCycleBudget>,
 ) -> ScannerCycleOutcome {
     let _activity_guard = ScannerActivityGuard::new();
     if let Err(err) = refresh_scanner_runtime_config_from_global() {
@@ -1066,7 +1163,11 @@ async fn run_data_scanner_cycle(
     }
     let configured_cycle_interval = scanner_cycle_interval();
     let configured_bitrot_cycle = scanner_bitrot_cycle();
-    let cycle_budget_config = scanner_cycle_budget_config();
+    let cycle_budget_config = ScannerCycleBudgetConfig {
+        max_duration: cycle_budget.max_duration(),
+        max_objects: cycle_budget.max_objects(),
+        max_directories: cycle_budget.max_directories(),
+    };
     let usage_persist_timeout = data_usage_persist_timeout();
     global_metrics().record_scanner_cycle_config(
         configured_cycle_interval,
@@ -1137,7 +1238,6 @@ async fn run_data_scanner_cycle(
     let (sender, receiver) = mpsc::channel::<DataUsageInfo>(1);
 
     let done_cycle = Metrics::time(Metric::ScanCycle);
-    let cycle_budget = ScannerCycleBudget::new(ctx, cycle_budget_config);
     let scan_result = storeapi
         .clone()
         .nsscanner_with_status(
@@ -1277,7 +1377,7 @@ async fn run_data_scanner_cycle(
                 "Scanner cycle is recovering to a newer durable cache generation"
             );
             emit_scan_cycle_partial_with_source(cycle_start.elapsed(), ScanCyclePartialReason::Unknown, None);
-            return if persist_required_scanner_cycle_floor(
+            let persisted = persist_required_scanner_cycle_floor(
                 ctx,
                 storeapi.clone(),
                 cycle_info,
@@ -1286,8 +1386,9 @@ async fn run_data_scanner_cycle(
                 required_cycle,
                 &mut cycle_metrics_guard,
             )
-            .await
-            {
+            .await;
+            return if persisted {
+                cycle_budget.mark_cycle_state_persisted();
                 ScannerCycleOutcome::Partial
             } else {
                 ScannerCycleOutcome::Failed
@@ -1345,7 +1446,7 @@ async fn run_data_scanner_cycle(
             scan_cycle_partial_reason(budget_reason),
             scan_cycle_partial_source(budget_reason),
         );
-        return if finalize_partial_scan_cycle(
+        let persisted = finalize_partial_scan_cycle(
             ctx,
             storeapi.clone(),
             cycle_info,
@@ -1353,8 +1454,9 @@ async fn run_data_scanner_cycle(
             leader_epoch,
             &mut cycle_metrics_guard,
         )
-        .await
-        {
+        .await;
+        return if persisted {
+            cycle_budget.mark_cycle_state_persisted();
             ScannerCycleOutcome::Partial
         } else {
             ScannerCycleOutcome::Failed
@@ -1429,7 +1531,7 @@ async fn run_data_scanner_cycle(
                 );
             }
             emit_scan_cycle_partial_with_source(cycle_start.elapsed(), ScanCyclePartialReason::Unknown, None);
-            return if finalize_partial_scan_cycle(
+            let persisted = finalize_partial_scan_cycle(
                 ctx,
                 storeapi.clone(),
                 cycle_info,
@@ -1437,8 +1539,9 @@ async fn run_data_scanner_cycle(
                 leader_epoch,
                 &mut cycle_metrics_guard,
             )
-            .await
-            {
+            .await;
+            return if persisted {
+                cycle_budget.mark_cycle_state_persisted();
                 ScannerCycleOutcome::Partial
             } else {
                 ScannerCycleOutcome::Failed
@@ -1479,6 +1582,7 @@ async fn run_data_scanner_cycle(
             )
             .await
             {
+                cycle_budget.mark_cycle_state_persisted();
                 emit_scan_cycle_superseded(cycle_start.elapsed());
                 return ScannerCycleOutcome::Superseded;
             }
@@ -1511,6 +1615,7 @@ async fn run_data_scanner_cycle(
         emit_scan_cycle_complete(false, cycle_start.elapsed());
         return ScannerCycleOutcome::Failed;
     }
+    cycle_budget.mark_cycle_state_persisted();
 
     done_cycle();
     emit_scan_cycle_complete(true, cycle_start.elapsed());
@@ -1575,7 +1680,7 @@ async fn run_data_scanner_with_maintenance_state(
 ) -> Result<(), ScannerError> {
     reset_scanner_cycle_schedule();
     // Acquire leader lock (write lock) to ensure only one scanner runs
-    let guard = match storeapi.new_ns_lock(RUSTFS_META_BUCKET, "leader.lock").await {
+    let mut guard = match storeapi.new_ns_lock(RUSTFS_META_BUCKET, "leader.lock").await {
         Ok(ns_lock) => match ns_lock.get_write_lock_quiet(get_lock_acquire_timeout()).await {
             Ok(guard) => {
                 record_scanner_leader_lock_state("acquired");
@@ -1740,13 +1845,49 @@ async fn run_data_scanner_with_maintenance_state(
             return Ok(());
         }
         let cycle_ctx = ctx.child_token();
-        let initial_outcome = await_scanner_cycle_with_lock_fence(
+        let cycle_budget = ScannerCycleBudget::new_with_runtime_progress_tracking(&cycle_ctx, scanner_cycle_budget_config());
+        let initial_outcome = match await_scanner_cycle_with_budget_fence(
             &cycle_ctx,
-            run_data_scanner_cycle(&cycle_ctx, &storeapi, &mut cycle_info, &mut cycle_revision, leader_epoch),
+            &cycle_budget,
+            run_data_scanner_cycle_with_budget(
+                &cycle_ctx,
+                &storeapi,
+                &mut cycle_info,
+                &mut cycle_revision,
+                leader_epoch,
+                cycle_budget.clone(),
+            ),
             guard.lock_lost_notified(),
         )
         .await
-        .unwrap_or(ScannerCycleOutcome::Failed);
+        {
+            ScannerCycleWaitOutcome::Completed(outcome) => outcome,
+            ScannerCycleWaitOutcome::LockLost => {
+                record_scanner_leader_lock_lost("Scanner leader lock lost during the initial cycle").await;
+                global_metrics().set_cycle(None).await;
+                return Ok(());
+            }
+            ScannerCycleWaitOutcome::Cancelled => {
+                global_metrics().set_cycle(None).await;
+                return Ok(());
+            }
+            ScannerCycleWaitOutcome::Deadline { worker_stopped } => {
+                handle_scanner_cycle_deadline(
+                    &ctx,
+                    storeapi.clone(),
+                    ScannerCycleDeadlineState {
+                        cycle_info: &mut cycle_info,
+                        cycle_revision: &mut cycle_revision,
+                        leader_epoch: &mut leader_epoch,
+                        cycle_budget: &cycle_budget,
+                    },
+                    worker_stopped,
+                    &mut guard,
+                )
+                .await;
+                return Ok(());
+            }
+        };
         superseded_backoff.record_retryable_cycle(initial_outcome == ScannerCycleOutcome::Superseded);
         deferred_backoff.record_retryable_cycle(matches!(initial_outcome, ScannerCycleOutcome::Deferred(_)));
         dirty_usage_generation_seen = dirty_generation_before_cycle;
@@ -1952,13 +2093,49 @@ async fn run_data_scanner_with_maintenance_state(
         }
         let dirty_generation_before_cycle = dirty_usage_generation();
         let cycle_ctx = ctx.child_token();
-        let outcome = await_scanner_cycle_with_lock_fence(
+        let cycle_budget = ScannerCycleBudget::new_with_runtime_progress_tracking(&cycle_ctx, scanner_cycle_budget_config());
+        let outcome = match await_scanner_cycle_with_budget_fence(
             &cycle_ctx,
-            run_data_scanner_cycle(&cycle_ctx, &storeapi, &mut cycle_info, &mut cycle_revision, leader_epoch),
+            &cycle_budget,
+            run_data_scanner_cycle_with_budget(
+                &cycle_ctx,
+                &storeapi,
+                &mut cycle_info,
+                &mut cycle_revision,
+                leader_epoch,
+                cycle_budget.clone(),
+            ),
             guard.lock_lost_notified(),
         )
         .await
-        .unwrap_or(ScannerCycleOutcome::Failed);
+        {
+            ScannerCycleWaitOutcome::Completed(outcome) => outcome,
+            ScannerCycleWaitOutcome::LockLost => {
+                record_scanner_leader_lock_lost("Scanner leader lock lost during a scanner cycle").await;
+                global_metrics().set_cycle(None).await;
+                return Ok(());
+            }
+            ScannerCycleWaitOutcome::Cancelled => {
+                global_metrics().set_cycle(None).await;
+                return Ok(());
+            }
+            ScannerCycleWaitOutcome::Deadline { worker_stopped } => {
+                handle_scanner_cycle_deadline(
+                    &ctx,
+                    storeapi.clone(),
+                    ScannerCycleDeadlineState {
+                        cycle_info: &mut cycle_info,
+                        cycle_revision: &mut cycle_revision,
+                        leader_epoch: &mut leader_epoch,
+                        cycle_budget: &cycle_budget,
+                    },
+                    worker_stopped,
+                    &mut guard,
+                )
+                .await;
+                return Ok(());
+            }
+        };
         superseded_backoff.record_retryable_cycle(outcome == ScannerCycleOutcome::Superseded);
         deferred_backoff.record_retryable_cycle(matches!(outcome, ScannerCycleOutcome::Deferred(_)));
         dirty_usage_generation_seen = dirty_generation_before_cycle;

crates/scanner/src/scanner/cycle_state.rs

@@ -1581,3 +1581,63 @@ where
         output = &mut cycle => Some(output),
     }
 }
+
+#[derive(Debug, PartialEq, Eq)]
+pub(super) enum ScannerCycleWaitOutcome<T> {
+    Completed(T),
+    LockLost,
+    Cancelled,
+    Deadline { worker_stopped: bool },
+}
+
+pub(super) async fn await_scanner_cycle_with_budget_fence<Cycle, LockLost>(
+    cycle_ctx: &CancellationToken,
+    budget: &ScannerCycleBudget,
+    cycle: Cycle,
+    lock_lost: LockLost,
+) -> ScannerCycleWaitOutcome<Cycle::Output>
+where
+    Cycle: Future,
+    LockLost: Future<Output = ()>,
+{
+    tokio::pin!(cycle);
+    tokio::pin!(lock_lost);
+    let deadline = async {
+        if let Some(deadline) = budget.deadline() {
+            tokio::time::sleep_until(deadline).await;
+        } else {
+            std::future::pending::<()>().await;
+        }
+    };
+    tokio::pin!(deadline);
+    tokio::select! {
+        biased;
+        _ = &mut lock_lost => {
+            cycle_ctx.cancel();
+            let _ = tokio::time::timeout(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT, &mut cycle).await;
+            ScannerCycleWaitOutcome::LockLost
+        }
+        _ = &mut deadline => {
+            budget.cancel_for_runtime();
+            // Let the budget cancellation reach the scanner first so it can
+            // persist a partial cursor. Only an uncooperative worker gets the
+            // parent cancellation, and it is dropped after the bounded window;
+            // the caller fences its epoch next.
+            let worker_stopped = if tokio::time::timeout(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT, &mut cycle)
+                .await
+                .is_ok()
+            {
+                true
+            } else {
+                cycle_ctx.cancel();
+                false
+            };
+            ScannerCycleWaitOutcome::Deadline { worker_stopped }
+        }
+        _ = cycle_ctx.cancelled() => {
+            let _ = tokio::time::timeout(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT, &mut cycle).await;
+            ScannerCycleWaitOutcome::Cancelled
+        }
+        output = &mut cycle => ScannerCycleWaitOutcome::Completed(output),
+    }
+}

crates/scanner/src/scanner/tests.rs

@@ -26,6 +26,7 @@ use std::task::Poll;
 use temp_env::{with_var, with_var_unset};
 use tokio::io::AsyncReadExt;
 use tokio::sync::Mutex;
+use tokio::time::{Duration, advance};
 
 const TEST_DEFAULT_SCANNER_CYCLE_SECS: u64 = 24 * 60 * 60;
 
@@ -118,6 +119,178 @@ async fn scanner_cycle_lock_fence_bounds_uncooperative_shutdown() {
     assert!(cycle_ctx.is_cancelled());
 }
 
+#[tokio::test(start_paused = true)]
+async fn cycle_budget_fences_late_writer_after_timeout() {
+    let cycle_ctx = CancellationToken::new();
+    let budget = ScannerCycleBudget::new(
+        &cycle_ctx,
+        ScannerCycleBudgetConfig {
+            max_duration: Some(Duration::from_secs(5)),
+            ..Default::default()
+        },
+    );
+    let outcome = {
+        let cycle = std::future::pending::<()>();
+        let lock_lost = std::future::pending::<()>();
+        let waiter = await_scanner_cycle_with_budget_fence(&cycle_ctx, &budget, cycle, lock_lost);
+        tokio::pin!(waiter);
+        tokio::task::yield_now().await;
+        advance(Duration::from_secs(5)).await;
+        tokio::task::yield_now().await;
+        advance(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT).await;
+        waiter.await
+    };
+    assert_eq!(outcome, ScannerCycleWaitOutcome::Deadline { worker_stopped: false });
+    assert!(cycle_ctx.is_cancelled());
+    assert_eq!(budget.reason(), Some(ScannerCycleBudgetReason::Runtime));
+
+    // A newer leadership epoch is the durable fence that rejects a late
+    // writer after the timed-out future has been dropped.
+    let store = Arc::new(MemoryConfigStore::default());
+    let mut revision = DataUsageCacheRevision::Missing;
+    let mut cycle = CurrentCycle {
+        current: 0,
+        next: 12,
+        ..Default::default()
+    };
+    let persist_ctx = CancellationToken::new();
+    assert!(persist_scanner_cycle_state(&persist_ctx, store.clone(), &mut cycle, &mut revision, 1).await);
+    let newer = encode_scanner_cycle_state(&cycle, 2).expect("new epoch fence should encode");
+    let key = memory_config_key(RUSTFS_META_BUCKET, DATA_USAGE_BLOOM_NAME_PATH.as_str());
+    store.interleaving_puts.lock().await.insert(key, (2, newer));
+    let mut late_cycle = CurrentCycle { next: 13, ..cycle };
+    assert!(!persist_scanner_cycle_state(&persist_ctx, store, &mut late_cycle, &mut revision, 1).await);
+}
+
+#[tokio::test(start_paused = true)]
+async fn cycle_budget_parent_cancellation_is_not_reported_as_timeout() {
+    let cycle_ctx = CancellationToken::new();
+    let budget = ScannerCycleBudget::new(
+        &cycle_ctx,
+        ScannerCycleBudgetConfig {
+            max_duration: Some(Duration::from_secs(5)),
+            ..Default::default()
+        },
+    );
+    let waiter = await_scanner_cycle_with_budget_fence(&cycle_ctx, &budget, std::future::pending::<()>(), std::future::pending());
+    tokio::pin!(waiter);
+    tokio::task::yield_now().await;
+    cycle_ctx.cancel();
+    tokio::task::yield_now().await;
+    advance(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT).await;
+    assert_eq!(waiter.await, ScannerCycleWaitOutcome::Cancelled);
+}
+
+#[tokio::test(start_paused = true)]
+async fn cycle_budget_deadline_wins_same_tick_as_parent_cancellation() {
+    let cycle_ctx = CancellationToken::new();
+    let budget = ScannerCycleBudget::new(
+        &cycle_ctx,
+        ScannerCycleBudgetConfig {
+            max_duration: Some(Duration::from_secs(5)),
+            ..Default::default()
+        },
+    );
+    let waiter = await_scanner_cycle_with_budget_fence(&cycle_ctx, &budget, std::future::pending::<()>(), std::future::pending());
+    tokio::pin!(waiter);
+    tokio::task::yield_now().await;
+    advance(Duration::from_secs(5)).await;
+    cycle_ctx.cancel();
+    tokio::task::yield_now().await;
+    advance(SCANNER_LOCK_LOSS_SHUTDOWN_TIMEOUT).await;
+
+    assert_eq!(waiter.await, ScannerCycleWaitOutcome::Deadline { worker_stopped: false });
+    assert_eq!(budget.reason(), Some(ScannerCycleBudgetReason::Runtime));
+}
+
+#[tokio::test]
+async fn cycle_budget_persist_cursor_failure_is_recovery_required() {
+    let store = Arc::new(MemoryConfigStore::default());
+    let key = memory_config_key(RUSTFS_META_BUCKET, DATA_USAGE_BLOOM_NAME_PATH.as_str());
+    store.fail_put_number.lock().await.insert(key, 1);
+
+    let ctx = CancellationToken::new();
+    let mut revision = DataUsageCacheRevision::Missing;
+    let mut cycle = CurrentCycle {
+        current: 12,
+        next: 12,
+        ..Default::default()
+    };
+    let mut leader_epoch = 1;
+    let fenced = fence_scanner_epoch_after_cycle_timeout(
+        &ctx,
+        store,
+        &mut cycle,
+        &mut revision,
+        &mut leader_epoch,
+        std::future::pending(),
+    )
+    .await;
+    assert!(!fenced, "a failed cursor/generation write must require recovery");
+    let budget = ScannerCycleBudget::new(&ctx, ScannerCycleBudgetConfig::default());
+    assert!(cycle_timeout_requires_recovery(true, budget.cycle_state_persisted(), fenced));
+
+    let metrics = Metrics::new();
+    metrics.record_scanner_cycle_timeout(!fenced, Duration::from_secs(17));
+    let report = metrics.report().await;
+    assert_eq!(report.cycle_timeout_total, 1);
+    assert_eq!(report.cycle_recovery_required_total, 1);
+    assert_eq!(report.cycle_last_progress_age, 17);
+    assert!(report.leader_lease_without_progress);
+}
+
+#[tokio::test]
+async fn cycle_budget_deadline_handler_fences_and_releases_guard() {
+    let (_temp_dir, store) = setup_scanner_cycle_store().await;
+    let lock = store
+        .new_ns_lock(RUSTFS_META_BUCKET, "leader.lock")
+        .await
+        .expect("scanner leader lock should be created");
+    let mut guard = lock
+        .get_write_lock(Duration::from_secs(1))
+        .await
+        .expect("scanner leader lock should be acquired");
+
+    let ctx = CancellationToken::new();
+    let mut cycle_info = CurrentCycle {
+        current: 12,
+        next: 12,
+        ..Default::default()
+    };
+    let mut cycle_revision = DataUsageCacheRevision::Missing;
+    let mut leader_epoch = 1;
+    let budget = ScannerCycleBudget::new(
+        &ctx,
+        ScannerCycleBudgetConfig {
+            max_duration: Some(Duration::from_secs(60)),
+            ..Default::default()
+        },
+    );
+    budget.mark_cycle_state_persisted();
+
+    handle_scanner_cycle_deadline(
+        &ctx,
+        store.clone(),
+        ScannerCycleDeadlineState {
+            cycle_info: &mut cycle_info,
+            cycle_revision: &mut cycle_revision,
+            leader_epoch: &mut leader_epoch,
+            cycle_budget: &budget,
+        },
+        true,
+        &mut guard,
+    )
+    .await;
+
+    assert!(guard.is_released());
+    let persisted = read_config(store, &DATA_USAGE_BLOOM_NAME_PATH)
+        .await
+        .expect("deadline handler should persist a fenced cursor");
+    let (_, persisted_epoch) = decode_scanner_cycle_state(&persisted).expect("fenced cursor should decode");
+    assert_eq!(persisted_epoch, 2);
+    global_metrics().set_cycle(None).await;
+}
+
 #[tokio::test]
 async fn scanner_cycle_recovery_wake_survives_wait_registration_race() {
     notify_scanner_cycle_recovery_wake();
@@ -428,13 +601,6 @@ fn test_scanner_cycle_max_duration_uses_env() {
     });
 }
 
-#[test]
-fn test_scanner_cycle_max_duration_default_is_disabled() {
-    with_var_unset(ENV_SCANNER_CYCLE_MAX_DURATION_SECS, || {
-        assert_eq!(scanner_cycle_max_duration(), None);
-    });
-}
-
 #[tokio::test]
 async fn test_scanner_cycle_budget_cancels_after_duration() {
     let parent = CancellationToken::new();
@@ -2242,7 +2408,7 @@ async fn test_leadership_claim_usage_fence_rejects_old_inflight_writer() {
 }
 
 #[tokio::test]
-async fn test_successful_old_epoch_commit_is_fenced_after_cancellation() {
+async fn cycle_budget_lease_takeover_rejects_old_generation() {
     let store = Arc::new(MemoryConfigStore::default());
     let ctx = CancellationToken::new();
     let mut revision = DataUsageCacheRevision::Missing;
@@ -2287,12 +2453,17 @@ async fn test_successful_old_epoch_commit_is_fenced_after_cancellation() {
         .await
     );
 
-    let state = read_config(store, &DATA_USAGE_BLOOM_NAME_PATH)
+    let state = read_config(store.clone(), &DATA_USAGE_BLOOM_NAME_PATH)
         .await
         .expect("replacement leadership claim should persist");
     let (claimed_cycle, claimed_epoch) = decode_scanner_cycle_state(&state).expect("replacement cycle state should decode");
     assert_eq!(claimed_cycle.next, 14);
     assert_eq!(claimed_epoch, 2);
+
+    let mut stale_cycle = CurrentCycle { next: 15, ..cycle };
+    let mut stale_revision = DataUsageCacheRevision::Etag("memory-2".to_string());
+    let stale_ctx = CancellationToken::new();
+    assert!(!persist_scanner_cycle_state(&stale_ctx, store, &mut stale_cycle, &mut stale_revision, 1,).await);
 }
 
 #[tokio::test]

crates/scanner/src/scanner_budget.rs

@@ -14,17 +14,16 @@
 
 use std::sync::{
     Arc,
-    atomic::{AtomicU8, AtomicU64, Ordering},
+    atomic::{AtomicBool, AtomicU8, AtomicU64, Ordering},
 };
-use std::time::Instant;
-
-use tokio::time::Duration;
+use tokio::time::{Duration, Instant};
 use tokio_util::sync::CancellationToken;
 
 const BUDGET_REASON_NONE: u8 = 0;
 const BUDGET_REASON_RUNTIME: u8 = 1;
 const BUDGET_REASON_OBJECTS: u8 = 2;
 const BUDGET_REASON_DIRECTORIES: u8 = 3;
+const PROGRESS_CLOCK_SAMPLE_INTERVAL: u64 = 128;
 
 #[derive(Clone, Copy, Debug, Default, PartialEq, Eq)]
 pub(crate) struct ScannerCycleBudgetConfig {
@@ -63,29 +62,51 @@ pub struct ScannerCycleBudget {
     token: CancellationToken,
     reason: Arc<AtomicU8>,
     started_at: Instant,
+    deadline: Option<Instant>,
     max_duration: Option<Duration>,
     max_objects: Option<u64>,
     max_directories: Option<u64>,
     track_progress: bool,
+    track_unbounded_counts: bool,
     objects_scanned: AtomicU64,
     directories_started: AtomicU64,
     entries_visited: AtomicU64,
+    last_progress_millis: AtomicU64,
+    cycle_state_persisted: AtomicBool,
 }
 
 impl ScannerCycleBudget {
+    #[cfg(test)]
     pub(crate) fn new(parent: &CancellationToken, config: ScannerCycleBudgetConfig) -> Arc<Self> {
-        Self::new_inner(parent, config, false)
+        Self::new_inner(parent, config, false, false)
     }
 
     pub(crate) fn new_with_progress_tracking(parent: &CancellationToken, config: ScannerCycleBudgetConfig) -> Arc<Self> {
-        Self::new_inner(parent, config, true)
+        Self::new_inner(parent, config, true, true)
     }
 
-    fn new_inner(parent: &CancellationToken, config: ScannerCycleBudgetConfig, track_progress: bool) -> Arc<Self> {
+    pub(crate) fn new_with_runtime_progress_tracking(parent: &CancellationToken, config: ScannerCycleBudgetConfig) -> Arc<Self> {
+        let track_progress = config.max_duration.is_some();
+        Self::new_inner(parent, config, track_progress, false)
+    }
+
+    fn new_inner(
+        parent: &CancellationToken,
+        config: ScannerCycleBudgetConfig,
+        track_progress: bool,
+        track_unbounded_counts: bool,
+    ) -> Arc<Self> {
         let token = parent.child_token();
         let reason = Arc::new(AtomicU8::new(BUDGET_REASON_NONE));
+        let started_at = Instant::now();
+        let deadline = config.max_duration.map(|duration| match started_at.checked_add(duration) {
+            Some(deadline) => deadline,
+            // Runtime config rejects this range, but keep programmatic callers
+            // fail-closed instead of panicking or silently disabling the wall clock.
+            None => started_at,
+        });
 
-        if let Some(duration) = config.max_duration {
+        if let Some(deadline) = deadline {
             let parent = parent.clone();
             let token_wait = token.clone();
             let token_cancel = token.clone();
@@ -94,7 +115,7 @@ impl ScannerCycleBudget {
                 tokio::select! {
                     _ = parent.cancelled() => {}
                     _ = token_wait.cancelled() => {}
-                    _ = tokio::time::sleep(duration) => {
+                    _ = tokio::time::sleep_until(deadline) => {
                         Self::cancel_for_reason(&reason, &token_cancel, ScannerCycleBudgetReason::Runtime);
                     }
                 }
@@ -104,14 +125,18 @@ impl ScannerCycleBudget {
         Arc::new(Self {
             token,
             reason,
-            started_at: Instant::now(),
+            started_at,
+            deadline,
             max_duration: config.max_duration,
             max_objects: config.max_objects,
             max_directories: config.max_directories,
             track_progress,
+            track_unbounded_counts,
             objects_scanned: AtomicU64::new(0),
             directories_started: AtomicU64::new(0),
             entries_visited: AtomicU64::new(0),
+            last_progress_millis: AtomicU64::new(0),
+            cycle_state_persisted: AtomicBool::new(false),
         })
     }
 
@@ -131,6 +156,14 @@ impl ScannerCycleBudget {
         self.max_duration
     }
 
+    pub(crate) fn deadline(&self) -> Option<Instant> {
+        self.deadline
+    }
+
+    pub(crate) fn cancel_for_runtime(&self) {
+        self.cancel_for(ScannerCycleBudgetReason::Runtime);
+    }
+
     pub(crate) fn max_objects(&self) -> Option<u64> {
         self.max_objects
     }
@@ -173,15 +206,43 @@ impl ScannerCycleBudget {
         self.entries_visited.load(Ordering::Relaxed)
     }
 
+    pub(crate) fn mark_cycle_state_persisted(&self) {
+        self.cycle_state_persisted.store(true, Ordering::Release);
+    }
+
+    pub(crate) fn cycle_state_persisted(&self) -> bool {
+        self.cycle_state_persisted.load(Ordering::Acquire)
+    }
+
+    pub(crate) fn progress_age(&self) -> Duration {
+        let elapsed_millis = u64::try_from(self.started_at.elapsed().as_millis()).unwrap_or(u64::MAX);
+        let last_progress = self.last_progress_millis.load(Ordering::Relaxed);
+        Duration::from_millis(elapsed_millis.saturating_sub(last_progress))
+    }
+
+    fn record_progress_sample(&self, event: u64) {
+        // Clock reads are sampled at batch/count boundaries; the scanner's
+        // per-object path does not add a second progress atomic.
+        if event == 0 || (event != 1 && !event.is_multiple_of(PROGRESS_CLOCK_SAMPLE_INTERVAL)) {
+            return;
+        }
+        let elapsed_millis = u64::try_from(self.started_at.elapsed().as_millis()).unwrap_or(u64::MAX);
+        self.last_progress_millis.store(elapsed_millis, Ordering::Relaxed);
+    }
+
     pub(crate) fn record_entries_visited(&self, entries_visited: u64) {
         if self.track_progress {
-            saturating_fetch_add(&self.entries_visited, entries_visited);
+            let entries = saturating_fetch_add(&self.entries_visited, entries_visited);
+            self.record_progress_sample(entries);
         }
     }
 
     pub(crate) fn record_remote_progress(&self, objects_scanned: u64, directories_started: u64) {
         if self.track_progress || self.max_objects.is_some() {
             let objects = saturating_fetch_add(&self.objects_scanned, objects_scanned);
+            if self.track_progress {
+                self.record_progress_sample(objects);
+            }
             if self.max_objects.is_some_and(|max_objects| objects >= max_objects) {
                 self.cancel_for(ScannerCycleBudgetReason::Objects);
             }
@@ -189,9 +250,12 @@ impl ScannerCycleBudget {
 
         if self.track_progress || self.max_directories.is_some() {
             let directories = saturating_fetch_add(&self.directories_started, directories_started);
+            if self.track_progress {
+                self.record_progress_sample(directories);
+            }
             if self
                 .max_directories
-                .is_some_and(|max_directories| directories > max_directories)
+                .is_some_and(|max_directories| directory_budget_exhausted(directories, max_directories))
             {
                 self.cancel_for(ScannerCycleBudgetReason::Directories);
             }
@@ -207,14 +271,17 @@ impl ScannerCycleBudget {
     }
 
     pub(crate) fn try_start_directory(&self) -> bool {
-        if !self.track_progress && self.max_directories.is_none() {
+        if self.max_directories.is_none() && !self.track_unbounded_counts {
             return true;
         }
 
         let directories = saturating_fetch_add(&self.directories_started, 1);
+        if self.track_progress {
+            self.record_progress_sample(directories);
+        }
         if self
             .max_directories
-            .is_some_and(|max_directories| directories > max_directories)
+            .is_some_and(|max_directories| directory_budget_exhausted(directories, max_directories))
         {
             self.cancel_for(ScannerCycleBudgetReason::Directories);
             return false;
@@ -224,11 +291,14 @@ impl ScannerCycleBudget {
     }
 
     pub(crate) fn record_object_scanned(&self) {
-        if !self.track_progress && self.max_objects.is_none() {
+        if self.max_objects.is_none() && !self.track_unbounded_counts {
             return;
         }
 
         let objects = saturating_fetch_add(&self.objects_scanned, 1);
+        if self.track_progress {
+            self.record_progress_sample(objects);
+        }
         if self.max_objects.is_some_and(|max_objects| objects >= max_objects) {
             self.cancel_for(ScannerCycleBudgetReason::Objects);
         }
@@ -259,6 +329,13 @@ fn saturating_fetch_add(value: &AtomicU64, delta: u64) -> u64 {
     }
 }
 
+fn directory_budget_exhausted(directories: u64, max_directories: u64) -> bool {
+    // Saturation hides a remote max+1 update when the configured limit is the
+    // largest representable counter. Treat that boundary as exhausted rather
+    // than allowing work to continue indefinitely.
+    directories > max_directories || (directories == u64::MAX && max_directories == u64::MAX)
+}
+
 impl Drop for ScannerCycleBudget {
     fn drop(&mut self) {
         self.token.cancel();
@@ -401,6 +478,35 @@ mod tests {
         assert_eq!(directory_budget.reason(), Some(ScannerCycleBudgetReason::Directories));
     }
 
+    #[test]
+    fn directory_budget_fails_closed_when_progress_saturates() {
+        let parent = CancellationToken::new();
+        let budget = ScannerCycleBudget::new(
+            &parent,
+            ScannerCycleBudgetConfig {
+                max_directories: Some(u64::MAX),
+                ..Default::default()
+            },
+        );
+
+        budget.record_remote_progress(0, u64::MAX);
+
+        assert_eq!(budget.reason(), Some(ScannerCycleBudgetReason::Directories));
+        assert!(budget.token().is_cancelled());
+
+        let local_budget = ScannerCycleBudget::new(
+            &parent,
+            ScannerCycleBudgetConfig {
+                max_directories: Some(u64::MAX),
+                ..Default::default()
+            },
+        );
+        local_budget.record_remote_progress(0, u64::MAX - 1);
+        assert!(!local_budget.budget_elapsed());
+        assert!(!local_budget.try_start_directory());
+        assert_eq!(local_budget.reason(), Some(ScannerCycleBudgetReason::Directories));
+    }
+
     #[test]
     fn explicit_progress_tracking_counts_unbounded_remote_work_without_cancelling() {
         let parent = CancellationToken::new();
@@ -461,4 +567,29 @@ mod tests {
         assert!(object_limited.requires_serial_progress_accounting());
         assert!(directory_limited.requires_serial_progress_accounting());
     }
+
+    #[tokio::test(start_paused = true)]
+    async fn progress_age_uses_virtual_time_and_sampled_progress() {
+        let parent = CancellationToken::new();
+        let budget = ScannerCycleBudget::new_with_runtime_progress_tracking(
+            &parent,
+            ScannerCycleBudgetConfig {
+                max_duration: Some(Duration::from_secs(60)),
+                ..Default::default()
+            },
+        );
+
+        tokio::time::advance(Duration::from_secs(5)).await;
+        assert_eq!(budget.progress_age(), Duration::from_secs(5));
+        budget.record_entries_visited(1);
+        assert_eq!(budget.progress_age(), Duration::ZERO);
+
+        tokio::time::advance(Duration::from_secs(2)).await;
+        for _ in 0..126 {
+            budget.record_entries_visited(1);
+        }
+        assert_eq!(budget.progress_age(), Duration::from_secs(2));
+        budget.record_entries_visited(1);
+        assert_eq!(budget.progress_age(), Duration::ZERO);
+    }
 }

crates/scanner/src/scanner_io.rs

@@ -48,6 +48,7 @@ use time::OffsetDateTime;
 use tokio::sync::{Mutex, Notify, Semaphore, mpsc};
 use tokio::time::Duration;
 use tokio_util::sync::CancellationToken;
+use tokio_util::task::AbortOnDropHandle;
 use tracing::{debug, error, warn};
 
 use crate::ScannerObjectInfo as ObjectInfo;

crates/scanner/src/scanner_io/io_cache.rs

@@ -314,7 +314,7 @@ impl ScannerIOCache for SetDisks {
         let ctx_clone = ctx.clone();
         let completed_bucket_count = Arc::new(AtomicUsize::new(0));
         let completed_bucket_count_clone = completed_bucket_count.clone();
-        let collect_bucket_results_fut = tokio::spawn(async move {
+        let collect_bucket_results_fut = AbortOnDropHandle::new(tokio::spawn(async move {
             let mut cancelled = false;
 
             loop {
@@ -333,7 +333,7 @@ impl ScannerIOCache for SetDisks {
                     }
                 }
             }
-        });
+        }));
 
         let mut futs = Vec::new();
 
@@ -365,7 +365,7 @@ impl ScannerIOCache for SetDisks {
                 NamespaceScannerWorkerMode::RemoteV4(server_epoch) => Some(server_epoch),
                 NamespaceScannerWorkerMode::Coordinator => None,
             };
-            futs.push(tokio::spawn(async move {
+            futs.push(AbortOnDropHandle::new(tokio::spawn(async move {
                 let remote_session_id = uuid::Uuid::new_v4();
                 let mut remote_session_sequence = 0_u64;
                 loop {
@@ -1038,7 +1038,7 @@ impl ScannerIOCache for SetDisks {
                         );
                     }
                 }
-            }));
+            })));
         }
         drop(bucket_tx);
         drop(bucket_result_tx);

crates/scanner/src/scanner_io/io_cycle.rs

@@ -242,7 +242,7 @@ impl ScannerIOCycle for ECStore {
                         results[results_index_clone] = result;
                     }
                 });
-                wait_futs.push(receiver_fut);
+                wait_futs.push(AbortOnDropHandle::new(receiver_fut));
 
                 let scan_plan = ScannerBucketScanPlan {
                     buckets: set_buckets,
@@ -318,7 +318,7 @@ impl ScannerIOCycle for ECStore {
                         record_set_scan_failure(&mut first_err, e);
                     }
                 });
-                wait_futs.push(scanner_fut);
+                wait_futs.push(AbortOnDropHandle::new(scanner_fut));
             }
         }
 

crates/storage-api/src/lib.rs

@@ -76,7 +76,6 @@ pub use bucket::{BucketInfo, BucketOperations, BucketOptions, DeleteBucketOption
 pub use capability::{CapabilitySnapshotError, CapabilityState, CapabilityStatus};
 pub use error::{StorageErrorCode, StorageResult};
 pub use multipart::{CompletePart, ListMultipartsInfo, ListPartsInfo, MultipartInfo, MultipartUploadResult, PartInfo};
-pub use object::DeleteAccounting;
 pub use object::ObjectLockDeleteOptions;
 pub use object::{DeletedObject, ObjectToDelete};
 pub use object::{ExpirationOptions, TransitionedObject};

crates/storage-api/src/object.rs

@@ -218,17 +218,6 @@ pub struct DeletedObject {
     pub force_delete_generation: Option<i64>,
 }
 
-/// Accounting identity returned by the internal commit-time delete path.
-///
-/// This is carried separately from [`DeletedObject`] so adding quota details
-/// does not change the source shape of the public S3 delete result contract.
-#[derive(Debug, Default, Clone, PartialEq, Eq)]
-pub struct DeleteAccounting {
-    pub size: Option<u64>,
-    pub version_id: Option<Uuid>,
-    pub removed_current_object: bool,
-}
-
 impl DeletedObject {
     pub fn version_purge_status(&self) -> VersionPurgeStatusType {
         self.replication_state
@@ -352,19 +341,6 @@ pub trait ObjectOperations: Send + Sync + fmt::Debug {
         objects: Vec<Self::ObjectToDelete>,
         opts: Self::ObjectOptions,
     ) -> (Vec<Self::DeletedObject>, Vec<Option<Self::Error>>);
-    /// Delete objects and optionally return commit-time accounting identities.
-    /// The default preserves the ordinary delete contract for implementations
-    /// that do not expose storage-level accounting details.
-    async fn delete_objects_with_accounting(
-        &self,
-        bucket: &str,
-        objects: Vec<Self::ObjectToDelete>,
-        opts: Self::ObjectOptions,
-    ) -> (Vec<Self::DeletedObject>, Vec<Option<Self::Error>>, Vec<Option<DeleteAccounting>>) {
-        let object_count = objects.len();
-        let (deleted, errors) = self.delete_objects(bucket, objects, opts).await;
-        (deleted, errors, vec![None; object_count])
-    }
     async fn put_object_metadata(
         &self,
         bucket: &str,

crates/utils/src/envs.rs

@@ -268,7 +268,7 @@ where
         .parse::<T>()
         .map_err(|_| {
             log_once(&format!("env_invalid_value:{used_key}"), || {
-                format!("Invalid {} value for {used_key}: {value}. Treating as unset.", type_name::<T>())
+                format!("Invalid {} value for {used_key}. Treating as unset.", type_name::<T>())
             });
         })
         .ok()
@@ -570,7 +570,7 @@ where
         Ok(parsed) => EnvParseOutcome::Parsed(parsed),
         Err(_) => {
             log_once(&format!("env_invalid_value:{used_key}"), || {
-                format!("Invalid {} value for {used_key}: {value}. Treating as unset.", type_name::<T>())
+                format!("Invalid {} value for {used_key}. Treating as unset.", type_name::<T>())
             });
             EnvParseOutcome::Invalid
         }

docs/operations/scanner-runtime-controls.md

@@ -52,7 +52,7 @@ The `/v3/scanner/status` response reports each effective runtime value with a
 | `scanner.max_wait` | `RUSTFS_SCANNER_MAX_WAIT_SECS` | seconds | preset-derived | Caps one scanner sleep. |
 | `scanner.cycle` | `RUSTFS_SCANNER_CYCLE` | seconds | preset-derived | Sets the interval between scanner cycles. |
 | `scanner.start_delay` | `RUSTFS_SCANNER_START_DELAY_SECS` | seconds | unset | Sets startup delay and, for compatibility, the cycle interval when `scanner.cycle` is unset. |
-| `scanner.cycle_max_duration` | `RUSTFS_SCANNER_CYCLE_MAX_DURATION_SECS` | seconds | `0` | Caps one cycle's runtime. `0` disables this budget. |
+| `scanner.cycle_max_duration` | `RUSTFS_SCANNER_CYCLE_MAX_DURATION_SECS` | seconds | `1800` | Caps one cycle's runtime. An explicit `0` disables this budget. |
 | `scanner.cycle_max_objects` | `RUSTFS_SCANNER_CYCLE_MAX_OBJECTS` | objects | `0` | Caps objects processed by one cycle. `0` disables this budget. |
 | `scanner.cycle_max_directories` | `RUSTFS_SCANNER_CYCLE_MAX_DIRECTORIES` | directories | `0` | Caps directories entered by one cycle. `0` disables this budget. |
 | `heal.bitrot_cycle` | `RUSTFS_SCANNER_BITROT_CYCLE_SECS` | seconds | `2592000` | Controls periodic deep bitrot scans. `false`, `off`, `no`, or `disabled` disables periodic deep scans; `0`, `true`, `on`, or `yes` runs deep mode every scanner cycle. |
@@ -70,6 +70,21 @@ sleep multiplier, maximum wait, and cycle interval. Use `scanner.delay`,
 `scanner.max_wait`, and `scanner.cycle` when the preset is close but one axis
 needs a precise override.
 
+When the cycle duration control is unset, RustFS uses a finite 1800-second
+(30-minute) default, matching the scanner benchmark guidance. An explicit `0`
+preserves the compatibility behavior of an unbounded cycle; object and
+directory budgets likewise remain unbounded when explicitly set to `0`. Invalid
+or overflowing duration environment values are configuration errors rather than
+silent fallback values.
+
+When a finite deadline expires, RustFS cancels cooperative scanner work and
+waits only for the existing bounded shutdown window. A non-yielding I/O future
+is dropped after that window. RustFS then attempts a higher leadership epoch so
+late cycle, usage, cache, and remote writes from the old generation fail closed.
+If the worker cannot stop cooperatively, the cycle state was not confirmed
+durable, or that epoch fence cannot be durably persisted, the scanner reports
+`recovery-required`; it does not claim an uncooperative cursor was saved.
+
 An explicit `scanner.cycle` or `RUSTFS_SCANNER_CYCLE` is a minimum inter-cycle
 cadence: dirty-usage notifications do not bypass that configured interval.
 The default adaptive policy continues to use dirty-usage notifications to wake
@@ -144,6 +159,10 @@ metrics.maintenance_control.primary_control
 metrics.source_work
 metrics.replication_repair
 metrics.scan_checkpoint
+metrics.cycle_timeout_total
+metrics.cycle_last_progress_age
+metrics.leader_lease_without_progress
+metrics.cycle_recovery_required_total
 ```
 
 ## Reading Pacing Pressure

rustfs/src/app/bucket_usecase.rs

@@ -1021,7 +1021,7 @@ fn build_list_objects_v2_metadata_output(
                 object: Object {
                     key: Some(encode_list_objects_v2_value(&object.name, encoding_type)),
                     last_modified: object.mod_time.map(Timestamp::from),
-                    size: Some(object.get_actual_size_or_physical()),
+                    size: Some(object.get_actual_size().unwrap_or_default()),
                     e_tag: object.etag.clone().map(|etag| to_s3s_etag(&etag)),
                     storage_class: Some(ObjectStorageClass::from(
                         object

rustfs/src/app/object_usecase.rs

@@ -3969,55 +3969,6 @@ fn delete_creates_delete_marker(opts: &ObjectOptions) -> bool {
     opts.version_id.is_none() && opts.versioned && !opts.version_suspended
 }
 
-fn delete_removes_current_object(opts: &ObjectOptions) -> bool {
-    delete_request_targets_current(
-        opts.version_id
-            .as_deref()
-            .and_then(|version_id| Uuid::parse_str(version_id).ok()),
-    )
-}
-
-fn delete_request_targets_current(version_id: Option<Uuid>) -> bool {
-    version_id.is_none() || version_id.is_some_and(|version_id| version_id.is_nil())
-}
-
-#[derive(Debug, Clone, Copy, PartialEq, Eq)]
-enum DeleteMemoryUpdate {
-    DeleteMarker,
-    Object { size: u64, removed_current_object: bool },
-}
-
-fn delete_memory_update(
-    creates_delete_marker: bool,
-    committed_delete_marker: bool,
-    requested_current: bool,
-    accounting_size: Option<u64>,
-    removed_current_object: bool,
-) -> Option<DeleteMemoryUpdate> {
-    if creates_delete_marker || (committed_delete_marker && requested_current) {
-        return Some(DeleteMemoryUpdate::DeleteMarker);
-    }
-
-    (!committed_delete_marker)
-        .then_some(accounting_size)
-        .flatten()
-        .map(|size| DeleteMemoryUpdate::Object {
-            size,
-            removed_current_object,
-        })
-}
-
-async fn apply_delete_memory_update(bucket: &str, update: Option<DeleteMemoryUpdate>) {
-    match update {
-        Some(DeleteMemoryUpdate::DeleteMarker) => record_bucket_delete_marker_memory(bucket).await,
-        Some(DeleteMemoryUpdate::Object {
-            size,
-            removed_current_object,
-        }) => record_bucket_object_delete_memory(bucket, size, removed_current_object).await,
-        None => {}
-    }
-}
-
 /// `DeleteObjects` is idempotent. A raw filesystem `NotFound` can cross the
 /// distributed delete path instead of its usual typed missing-object error.
 fn is_delete_objects_not_found(error: &EcstoreError) -> bool {
@@ -8458,6 +8409,8 @@ impl DefaultObjectUsecase {
             object: ObjectToDelete,
             versioned: bool,
             version_suspended: bool,
+            size: i64,
+            existing: Option<ObjectInfo>,
         }
 
         // Phase 2 (bounded concurrency, backlog#929 / HP-8): collect the
@@ -8475,23 +8428,32 @@ impl DefaultObjectUsecase {
                     skip_stat,
                 } = prepared;
                 let synthetic_version_id = object.version_id.is_none() && is_dir_object(&object.object_name);
-                if !skip_stat {
+                let (goi, source_missing) = if skip_stat {
+                    (ObjectInfo::default(), false)
+                } else {
                     match store_ref.get_object_info(bucket_ref, &object.object_name, &opts).await {
-                        Ok(_) => {}
-                        Err(err) if is_err_object_not_found(&err) || is_err_version_not_found(&err) => {}
+                        Ok(res) => (res, false),
+                        Err(err) if is_err_object_not_found(&err) || is_err_version_not_found(&err) => {
+                            (ObjectInfo::default(), true)
+                        }
                         Err(err) => return Err(ApiError::from(err)),
                     }
-                }
+                };
+
+                let size = goi.size;
 
                 if synthetic_version_id {
                     object.version_id = Some(Uuid::nil());
                 }
 
+                let existing = (!skip_stat && !source_missing).then_some(goi);
                 Ok::<_, ApiError>(AdmittedDelete {
                     idx,
                     object,
                     versioned: opts.versioned,
                     version_suspended: opts.version_suspended,
+                    size,
+                    existing,
                 })
             }))
             .buffered(DELETE_OBJECTS_PRE_STAT_CONCURRENCY)
@@ -8502,11 +8464,15 @@ impl DefaultObjectUsecase {
         // per-key success/failure reporting is unchanged.
         let mut object_to_delete = Vec::new();
         let mut object_to_delete_idx = Vec::new();
+        let mut object_sizes = Vec::new();
+        let mut existing_object_infos = Vec::new();
         let mut object_versioning = Vec::new();
         for admitted in admitted_deletes {
+            object_sizes.push(admitted.size);
             object_to_delete_idx.push(admitted.idx);
             object_versioning.push((admitted.versioned, admitted.version_suspended));
             object_to_delete.push(admitted.object);
+            existing_object_infos.push(admitted.existing);
         }
         let cache_adapter = self.object_data_cache();
         let cache_keys_before_delete = object_to_delete
@@ -8523,8 +8489,8 @@ impl DefaultObjectUsecase {
             ..Default::default()
         };
         apply_bucket_generation_guard(&req, &bucket, &mut storage_delete_opts)?;
-        let (dobjs, errs, accounting) = store
-            .delete_objects_with_tier_delete_journal_and_accounting(&bucket, object_to_delete.clone(), storage_delete_opts)
+        let (dobjs, errs) = store
+            .delete_objects_with_tier_delete_journal(&bucket, object_to_delete.clone(), storage_delete_opts)
             .await;
 
         let _manager = get_concurrency_manager();
@@ -8549,16 +8515,17 @@ impl DefaultObjectUsecase {
                     delete_results[didx].delete_object = Some(deleted_object.clone());
                     let (versioned, version_suspended) = object_versioning[i];
                     let creates_delete_marker = object_to_delete[i].version_id.is_none() && versioned && !version_suspended;
-                    let committed_delete_marker = dobjs[i].delete_marker;
-                    let delete_accounting = accounting.get(i).and_then(Option::as_ref);
-                    let update = delete_memory_update(
-                        creates_delete_marker,
-                        committed_delete_marker,
-                        delete_request_targets_current(object_to_delete[i].version_id),
-                        delete_accounting.and_then(|value| value.size),
-                        delete_accounting.is_some_and(|value| value.removed_current_object),
-                    );
-                    apply_delete_memory_update(&bucket, update).await;
+                    if creates_delete_marker {
+                        record_bucket_delete_marker_memory(&bucket).await;
+                    } else {
+                        let size = object_sizes[i].max(0) as u64;
+                        record_bucket_object_delete_memory(
+                            &bucket,
+                            size,
+                            existing_object_infos[i].is_some() && object_to_delete[i].version_id.is_none(),
+                        )
+                        .await;
+                    }
                 }
                 Err(error) => {
                     delete_results[didx].error = Some(error);
@@ -8836,24 +8803,12 @@ impl DefaultObjectUsecase {
             let _ = invalidate_object_data_cache_after_delete_success(&cache_adapter, &bucket, &key).await;
         }
 
-        // Fast in-memory update for immediate quota and admin usage consistency.
-        // Prefix/force deletes and synthetic directory entries do not carry one
-        // committed object identity; leave their cache delta to reconciliation.
-        let update = if force_delete || obj_info.name.is_empty() || synthetic_version_id {
-            None
+        // Fast in-memory update for immediate quota and admin usage consistency
+        if delete_creates_delete_marker(&opts) {
+            record_bucket_delete_marker_memory(&bucket).await;
         } else {
-            // The storage commit returns this object's metadata while its
-            // generation lock is held. Never fall back to a pre-delete stat:
-            // an overwrite can commit between that stat and this delete.
-            delete_memory_update(
-                delete_creates_delete_marker(&opts),
-                obj_info.delete_marker,
-                opts.version_id.is_none(),
-                quota_object_size(&obj_info).ok(),
-                delete_removes_current_object(&opts),
-            )
-        };
-        apply_delete_memory_update(&bucket, update).await;
+            record_bucket_object_delete_memory(&bucket, obj_info.size.max(0) as u64, opts.version_id.is_none()).await;
+        }
 
         if obj_info.name.is_empty() {
             if let Some((operation_id, target_arns, generation)) = force_delete_intent {
@@ -17906,158 +17861,6 @@ mod tests {
         assert!(!can_skip_delete_objects_pre_stat(false, &delete_marker_creating_opts(), false));
     }
 
-    #[test]
-    fn delete_accounting_recognizes_explicit_null_as_current_object() {
-        let opts = ObjectOptions {
-            version_id: Some(Uuid::nil().to_string()),
-            version_suspended: true,
-            ..Default::default()
-        };
-        assert!(delete_removes_current_object(&opts));
-        assert!(delete_request_targets_current(Some(Uuid::nil())));
-        assert!(!delete_request_targets_current(Some(Uuid::new_v4())));
-        assert!(!delete_removes_current_object(&ObjectOptions {
-            version_id: Some(Uuid::new_v4().to_string()),
-            ..Default::default()
-        }));
-    }
-
-    #[test]
-    fn compressed_object_delete_restores_usage_baseline() {
-        let mut metadata = HashMap::new();
-        insert_str(&mut metadata, SUFFIX_COMPRESSION, "klauspost/compress/s2".to_string());
-        let object = ObjectInfo {
-            size: 400,
-            actual_size: 1000,
-            user_defined: Arc::new(metadata),
-            ..Default::default()
-        };
-        let accounting_size = quota_object_size(&object).expect("logical compressed size should be canonical");
-
-        assert_eq!(
-            delete_memory_update(false, false, true, Some(accounting_size), true),
-            Some(DeleteMemoryUpdate::Object {
-                size: 1000,
-                removed_current_object: true,
-            })
-        );
-    }
-
-    #[test]
-    fn invalid_accounting_metadata_is_reconciled_without_overflow() {
-        assert_eq!(delete_memory_update(false, false, true, None, true), None);
-        assert_eq!(
-            delete_memory_update(false, true, true, None, true),
-            Some(DeleteMemoryUpdate::DeleteMarker)
-        );
-    }
-
-    #[tokio::test]
-    #[serial_test::serial]
-    async fn compressed_delete_requests_restore_usage_baseline() {
-        use crate::app::storage_api::test::contract::bucket::{BucketOperations as _, DeleteBucketOptions, MakeBucketOptions};
-
-        let store = crate::app::gating_test_env::shared_gating_ecstore().await;
-        if current_app_context().is_none() {
-            crate::app::runtime_sources::install_test_app_context(Arc::clone(&store)).await;
-        }
-        let bucket = format!("compressed-delete-request-{}", Uuid::new_v4().simple());
-        store
-            .make_bucket(&bucket, &MakeBucketOptions::default())
-            .await
-            .expect("create compressed delete request bucket");
-
-        // Seed the process-local usage with the canonical logical bytes. The
-        // direct storage PUT below intentionally does not apply an app-layer
-        // usage delta; the two real DELETE requests must remove exactly this
-        // amount through their request-layer wiring.
-        crate::app::storage_api::test::data_usage::seed_bucket_usage_memory_for_test(&bucket, 2_000).await;
-
-        for object in ["single", "batch"] {
-            let mut metadata = HashMap::new();
-            insert_str(&mut metadata, SUFFIX_COMPRESSION, "klauspost/compress/s2".to_string());
-            insert_str(&mut metadata, SUFFIX_ACTUAL_SIZE, "1000".to_string());
-            let reader = HashReader::from_stream(std::io::Cursor::new(vec![0x5a; 400]), 400, 1000, None, None, false)
-                .expect("compressed fixture reader should be valid");
-            let mut reader = PutObjReader::new(reader);
-            store
-                .put_object(
-                    &bucket,
-                    object,
-                    &mut reader,
-                    &ObjectOptions {
-                        user_defined: metadata,
-                        ..Default::default()
-                    },
-                )
-                .await
-                .expect("compressed fixture object should be written");
-        }
-
-        let mut single_req = build_request(
-            DeleteObjectInput::builder()
-                .bucket(bucket.clone())
-                .key("single".to_string())
-                .build()
-                .expect("single delete input should build"),
-            Method::DELETE,
-        );
-        single_req.extensions.insert(crate::storage::access::ReqInfo {
-            cred: Some(rustfs_credentials::Credentials::default()),
-            is_owner: true,
-            ..Default::default()
-        });
-        DefaultObjectUsecase::from_global()
-            .execute_delete_object(single_req)
-            .await
-            .expect("single compressed delete should succeed");
-        assert_eq!(
-            crate::app::storage_api::test::data_usage::get_bucket_usage_memory(&bucket).await,
-            Some(1_000),
-            "single delete must subtract the logical accounting size"
-        );
-
-        let mut batch_req = build_request(
-            DeleteObjectsInput::builder()
-                .bucket(bucket.clone())
-                .delete(Delete {
-                    objects: vec![ObjectIdentifier {
-                        key: "batch".to_string(),
-                        ..Default::default()
-                    }],
-                    quiet: None,
-                })
-                .build()
-                .expect("batch delete input should build"),
-            Method::POST,
-        );
-        batch_req.extensions.insert(crate::storage::access::ReqInfo {
-            cred: Some(rustfs_credentials::Credentials::default()),
-            is_owner: true,
-            ..Default::default()
-        });
-        DefaultObjectUsecase::from_global()
-            .execute_delete_objects(batch_req)
-            .await
-            .expect("batch compressed delete should succeed");
-        assert_eq!(
-            crate::app::storage_api::test::data_usage::get_bucket_usage_memory(&bucket).await,
-            Some(0),
-            "batch delete must subtract the committed logical accounting size"
-        );
-
-        store
-            .delete_bucket(
-                &bucket,
-                &DeleteBucketOptions {
-                    force: true,
-                    ..Default::default()
-                },
-            )
-            .await
-            .expect("clean up compressed delete request bucket");
-    }
-
     #[tokio::test]
     async fn execute_get_object_attributes_returns_internal_error_when_store_uninitialized() {
         let input = GetObjectAttributesInput::builder()

rustfs/src/app/storage_api.rs

@@ -72,11 +72,6 @@ pub(crate) mod data_usage {
         compute_bucket_usage, live_bucket_usage_computations, seed_bucket_usage_memory_for_test, store_data_usage_in_backend,
     };
 
-    #[cfg(test)]
-    pub(crate) async fn get_bucket_usage_memory(bucket: &str) -> Option<u64> {
-        crate::storage::storage_api::ecstore_data_usage::get_bucket_usage_memory(bucket).await
-    }
-
     pub(crate) async fn record_bucket_object_delete_memory(bucket: &str, deleted_size: u64, removed_current_object: bool) {
         crate::storage::storage_api::ecstore_data_usage::record_bucket_object_delete_memory(
             bucket,
@@ -1238,10 +1233,7 @@ pub(crate) mod test {
 
     pub(crate) use super::access::ReqInfo;
     pub(crate) use super::options::VERSIONING_CONFIG_LOOKUPS;
-    pub(crate) use super::{bucket, ecfs, object_utils, runtime};
-    pub(crate) mod data_usage {
-        pub(crate) use super::super::data_usage::*;
-    }
+    pub(crate) use super::{bucket, data_usage, ecfs, object_utils, runtime};
     pub(crate) use crate::storage::storage_api::test_consumer::{get_global_bucket_metadata_sys, set_bucket_metadata};
     pub(crate) use crate::storage::storage_api::{
         ECStore, Endpoint, Endpoints, PoolEndpoints, StorageObjectInfo, StorageObjectOptions, StoragePutObjReader,

rustfs/src/storage/s3_api/bucket.rs

@@ -296,10 +296,7 @@ pub(crate) fn build_list_objects_v2_output(
             let mut obj = Object {
                 key: Some(key),
                 last_modified: v.mod_time.map(Timestamp::from),
-                // Compressed legacy objects may retain an unknown (-1)
-                // logical-size sentinel; never expose that internal value in
-                // an S3 response.
-                size: Some(v.get_actual_size_or_physical()),
+                size: Some(v.get_actual_size().unwrap_or_default()),
                 e_tag: v.etag.clone().map(|etag| to_s3s_etag(&etag)),
                 storage_class: v.storage_class.clone().map(ObjectStorageClass::from),
                 ..Default::default()
@@ -659,45 +656,6 @@ mod tests {
         assert_eq!(output.common_prefixes.as_ref().map(std::vec::Vec::len), Some(2));
     }
 
-    #[test]
-    fn list_objects_never_exposes_compressed_unknown_size_sentinel() {
-        let mut metadata = std::collections::HashMap::new();
-        rustfs_utils::http::insert_str(
-            &mut metadata,
-            rustfs_utils::http::SUFFIX_COMPRESSION,
-            "klauspost/compress/s2".to_string(),
-        );
-        let output = build_list_objects_v2_output(
-            ListObjectsV2Info {
-                objects: vec![ObjectInfo {
-                    name: "legacy-compressed".to_string(),
-                    size: 128,
-                    actual_size: -1,
-                    user_defined: std::sync::Arc::new(metadata),
-                    ..Default::default()
-                }],
-                ..Default::default()
-            },
-            false,
-            1000,
-            "bucket".to_string(),
-            String::new(),
-            None,
-            None,
-            None,
-            None,
-        );
-
-        assert_eq!(
-            output
-                .contents
-                .as_ref()
-                .and_then(|objects| objects.first())
-                .and_then(|object| object.size),
-            Some(128)
-        );
-    }
-
     #[test]
     fn list_responses_report_standard_for_legacy_label_only_file_metadata() {
         let version_id = Uuid::parse_str("11111111-2222-3333-4444-555555555555").expect("fixture version ID should be valid");

rustfs/src/storage/storage_api.rs

@@ -429,8 +429,6 @@ pub(crate) mod ecstore_config {
 }
 
 pub(crate) mod ecstore_data_usage {
-    #[cfg(test)]
-    pub(crate) use rustfs_ecstore::api::data_usage::get_bucket_usage_memory;
     pub(crate) use rustfs_ecstore::api::data_usage::{
         apply_bucket_usage_memory_overlay, init_compression_total_memory_from_backend, load_admin_data_usage_from_backend_cached,
         load_data_usage_from_backend, quota_object_size, record_bucket_delete_marker_memory, record_bucket_object_delete_memory,