feat(scanner): expose replication repair kind metrics (#3476)

crates/common/src/metrics.rs

@@ -309,6 +309,62 @@ impl ScannerWorkSource {
     }
 }
 
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum ScannerReplicationRepairKind {
+    BucketObject,
+    BucketDeleteMarker,
+    BucketVersionPurge,
+    BucketExistingObject,
+    SitePassiveRequeue,
+    SiteActiveResync,
+}
+
+impl ScannerReplicationRepairKind {
+    const ALL: [Self; 6] = [
+        Self::BucketObject,
+        Self::BucketDeleteMarker,
+        Self::BucketVersionPurge,
+        Self::BucketExistingObject,
+        Self::SitePassiveRequeue,
+        Self::SiteActiveResync,
+    ];
+
+    pub fn source(self) -> ScannerWorkSource {
+        match self {
+            Self::BucketObject | Self::BucketDeleteMarker | Self::BucketVersionPurge | Self::BucketExistingObject => {
+                ScannerWorkSource::BucketReplication
+            }
+            Self::SitePassiveRequeue | Self::SiteActiveResync => ScannerWorkSource::SiteReplication,
+        }
+    }
+
+    pub fn as_str(self) -> &'static str {
+        match self {
+            Self::BucketObject => "object",
+            Self::BucketDeleteMarker => "delete_marker",
+            Self::BucketVersionPurge => "version_purge",
+            Self::BucketExistingObject => "existing_object",
+            Self::SitePassiveRequeue => "passive_requeue",
+            Self::SiteActiveResync => "active_resync",
+        }
+    }
+
+    fn all() -> &'static [Self] {
+        &Self::ALL
+    }
+
+    fn index(self) -> usize {
+        match self {
+            Self::BucketObject => 0,
+            Self::BucketDeleteMarker => 1,
+            Self::BucketVersionPurge => 2,
+            Self::BucketExistingObject => 3,
+            Self::SitePassiveRequeue => 4,
+            Self::SiteActiveResync => 5,
+        }
+    }
+}
+
 #[derive(Debug, Default)]
 struct ScannerSourceWorkCounters {
     checked: AtomicU64,
@@ -454,6 +510,19 @@ impl ScannerSourceWorkValues {
             missed: self.missed,
         }
     }
+
+    fn replication_repair_snapshot(self, kind: ScannerReplicationRepairKind) -> ScannerReplicationRepairSnapshot {
+        ScannerReplicationRepairSnapshot {
+            source: kind.source().as_str().to_string(),
+            kind: kind.as_str().to_string(),
+            checked: self.checked,
+            queued: self.queued,
+            executed: self.executed,
+            failed: self.failed,
+            skipped: self.skipped,
+            missed: self.missed,
+        }
+    }
 }
 
 // ---------------------------------------------------------------------------
@@ -687,6 +756,9 @@ pub struct Metrics {
     scanner_source_work: Vec<ScannerSourceWorkCounters>,
     current_scan_cycle_source_work_start: Vec<ScannerSourceWorkCounters>,
     last_scan_cycle_source_work: Vec<ScannerSourceWorkCounters>,
+    scanner_replication_repair_work: Vec<ScannerSourceWorkCounters>,
+    current_scan_cycle_replication_repair_work_start: Vec<ScannerSourceWorkCounters>,
+    last_scan_cycle_replication_repair_work: Vec<ScannerSourceWorkCounters>,
     partial_scan_cycles: AtomicU64,
 }
 
@@ -781,6 +853,19 @@ pub struct ScannerSourceWorkSnapshot {
     pub missed: u64,
 }
 
+#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
+pub struct ScannerReplicationRepairSnapshot {
+    pub source: String,
+    pub kind: String,
+    pub checked: u64,
+    pub queued: u64,
+    pub executed: u64,
+    pub failed: u64,
+    pub skipped: u64,
+    #[serde(default)]
+    pub missed: u64,
+}
+
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
 pub struct ScannerMaintenanceSourceSnapshot {
     pub source: String,
@@ -1050,6 +1135,12 @@ pub struct ScannerMetricsReport {
     #[serde(default)]
     pub last_cycle_source_work: Vec<ScannerSourceWorkSnapshot>,
     #[serde(default)]
+    pub replication_repair: Vec<ScannerReplicationRepairSnapshot>,
+    #[serde(default)]
+    pub current_cycle_replication_repair: Vec<ScannerReplicationRepairSnapshot>,
+    #[serde(default)]
+    pub last_cycle_replication_repair: Vec<ScannerReplicationRepairSnapshot>,
+    #[serde(default)]
     pub partial_cycles: u64,
 }
 
@@ -1549,6 +1640,18 @@ impl Metrics {
                 .iter()
                 .map(|_| ScannerSourceWorkCounters::default())
                 .collect(),
+            scanner_replication_repair_work: ScannerReplicationRepairKind::all()
+                .iter()
+                .map(|_| ScannerSourceWorkCounters::default())
+                .collect(),
+            current_scan_cycle_replication_repair_work_start: ScannerReplicationRepairKind::all()
+                .iter()
+                .map(|_| ScannerSourceWorkCounters::default())
+                .collect(),
+            last_scan_cycle_replication_repair_work: ScannerReplicationRepairKind::all()
+                .iter()
+                .map(|_| ScannerSourceWorkCounters::default())
+                .collect(),
             partial_scan_cycles: AtomicU64::new(0),
         }
     }
@@ -1812,6 +1915,12 @@ impl Metrics {
         }
     }
 
+    pub fn record_scanner_replication_repair_work(&self, kind: ScannerReplicationRepairKind, work: ScannerSourceWorkUpdate) {
+        if let Some(counters) = self.scanner_replication_repair_work.get(kind.index()) {
+            counters.add(work);
+        }
+    }
+
     fn record_last_cycle_scanner_source_work(&self, source: ScannerWorkSource, work: ScannerSourceWorkUpdate) {
         if let Some(counters) = self.last_scan_cycle_source_work.get(source.index()) {
             counters.add(work);
@@ -2060,6 +2169,7 @@ impl Metrics {
     pub fn start_scan_cycle_work(&self) -> ScanCycleWorkSnapshot {
         let snapshot = self.scan_cycle_work_snapshot();
         let source_snapshot = self.scanner_source_work_values();
+        let replication_repair_snapshot = self.scanner_replication_repair_work_values();
         self.current_scan_cycle_objects_start
             .store(snapshot.objects_scanned, Ordering::Relaxed);
         self.current_scan_cycle_directories_start
@@ -2089,6 +2199,10 @@ impl Metrics {
         self.current_scan_cycle_usage_saves_start
             .store(snapshot.usage_saves, Ordering::Relaxed);
         self.store_scanner_source_work_values(&self.current_scan_cycle_source_work_start, &source_snapshot);
+        self.store_scanner_replication_repair_work_values(
+            &self.current_scan_cycle_replication_repair_work_start,
+            &replication_repair_snapshot,
+        );
         self.current_scan_cycle_work_active.store(true, Ordering::Relaxed);
         snapshot
     }
@@ -2096,8 +2210,11 @@ impl Metrics {
     pub fn finish_scan_cycle_work(&self, start: ScanCycleWorkSnapshot) {
         let work = self.scan_cycle_work_since(start);
         let source_work = self.scanner_source_work_since(&self.current_scan_cycle_source_work_start_values());
+        let replication_repair_work =
+            self.scanner_replication_repair_work_since(&self.current_scan_cycle_replication_repair_work_start_values());
         self.record_scan_cycle_work(work);
         self.record_scan_cycle_source_work(&source_work);
+        self.record_scan_cycle_replication_repair_work(&replication_repair_work);
         self.current_scan_cycle_work_active.store(false, Ordering::Relaxed);
     }
 
@@ -2213,6 +2330,64 @@ impl Metrics {
             .collect()
     }
 
+    fn scanner_replication_repair_work_values(&self) -> Vec<ScannerSourceWorkValues> {
+        ScannerReplicationRepairKind::all()
+            .iter()
+            .filter_map(|kind| {
+                self.scanner_replication_repair_work
+                    .get(kind.index())
+                    .map(ScannerSourceWorkCounters::values)
+            })
+            .collect()
+    }
+
+    fn current_scan_cycle_replication_repair_work_start_values(&self) -> Vec<ScannerSourceWorkValues> {
+        ScannerReplicationRepairKind::all()
+            .iter()
+            .filter_map(|kind| {
+                self.current_scan_cycle_replication_repair_work_start
+                    .get(kind.index())
+                    .map(ScannerSourceWorkCounters::values)
+            })
+            .collect()
+    }
+
+    fn scanner_replication_repair_work_since(&self, start: &[ScannerSourceWorkValues]) -> Vec<ScannerSourceWorkValues> {
+        self.scanner_replication_repair_work_values()
+            .into_iter()
+            .enumerate()
+            .map(|(index, current)| current.saturating_sub(start.get(index).copied().unwrap_or_default()))
+            .collect()
+    }
+
+    fn scanner_replication_repair_work_snapshots(
+        &self,
+        values: &[ScannerSourceWorkValues],
+    ) -> Vec<ScannerReplicationRepairSnapshot> {
+        ScannerReplicationRepairKind::all()
+            .iter()
+            .filter_map(|kind| {
+                values
+                    .get(kind.index())
+                    .map(|values| values.replication_repair_snapshot(*kind))
+            })
+            .collect()
+    }
+
+    fn scanner_replication_repair_work_counter_snapshots(
+        &self,
+        counters: &[ScannerSourceWorkCounters],
+    ) -> Vec<ScannerReplicationRepairSnapshot> {
+        ScannerReplicationRepairKind::all()
+            .iter()
+            .filter_map(|kind| {
+                counters
+                    .get(kind.index())
+                    .map(|counters| counters.values().replication_repair_snapshot(*kind))
+            })
+            .collect()
+    }
+
     fn store_scanner_source_work_values(&self, counters: &[ScannerSourceWorkCounters], values: &[ScannerSourceWorkValues]) {
         for source in ScannerWorkSource::all() {
             if let (Some(counter), Some(values)) = (counters.get(source.index()), values.get(source.index())) {
@@ -2221,6 +2396,18 @@ impl Metrics {
         }
     }
 
+    fn store_scanner_replication_repair_work_values(
+        &self,
+        counters: &[ScannerSourceWorkCounters],
+        values: &[ScannerSourceWorkValues],
+    ) {
+        for kind in ScannerReplicationRepairKind::all() {
+            if let (Some(counter), Some(values)) = (counters.get(kind.index()), values.get(kind.index())) {
+                counter.store(*values);
+            }
+        }
+    }
+
     pub fn record_scan_cycle_work(&self, work: ScanCycleWorkSnapshot) {
         // Telemetry-only gauges: readers may observe a transient mixed snapshot
         // while these independent atomic fields are updated.
@@ -2254,6 +2441,10 @@ impl Metrics {
         self.store_scanner_source_work_values(&self.last_scan_cycle_source_work, work);
     }
 
+    fn record_scan_cycle_replication_repair_work(&self, work: &[ScannerSourceWorkValues]) {
+        self.store_scanner_replication_repair_work_values(&self.last_scan_cycle_replication_repair_work, work);
+    }
+
     /// Snapshot of every path currently being scanned.
     pub async fn get_current_paths(&self) -> Vec<String> {
         self.current_path_snapshots()
@@ -2326,6 +2517,8 @@ impl Metrics {
         if self.current_scan_cycle_work_active.load(Ordering::Relaxed) {
             let current_work = self.scan_cycle_work_since(self.current_scan_cycle_work_start());
             let current_source_work = self.scanner_source_work_since(&self.current_scan_cycle_source_work_start_values());
+            let current_replication_repair_work =
+                self.scanner_replication_repair_work_since(&self.current_scan_cycle_replication_repair_work_start_values());
             m.current_cycle_objects_scanned = current_work.objects_scanned;
             m.current_cycle_directories_scanned = current_work.directories_scanned;
             m.current_cycle_bucket_drive_scans = current_work.bucket_drive_scans;
@@ -2341,6 +2534,7 @@ impl Metrics {
             m.current_cycle_replication_checks = current_work.replication_checks;
             m.current_cycle_usage_saves = current_work.usage_saves;
             m.current_cycle_source_work = self.scanner_source_work_snapshots(&current_source_work);
+            m.current_cycle_replication_repair = self.scanner_replication_repair_work_snapshots(&current_replication_repair_work);
         }
         let last_cycle_result = self.last_scan_cycle_result.load(Ordering::Relaxed);
         m.last_cycle_result = scan_cycle_result_label(last_cycle_result).to_string();
@@ -2371,6 +2565,8 @@ impl Metrics {
         m.last_cycle_replication_checks = self.last_scan_cycle_replication_checks.load(Ordering::Relaxed);
         m.last_cycle_usage_saves = self.last_scan_cycle_usage_saves.load(Ordering::Relaxed);
         m.last_cycle_source_work = self.scanner_source_work_counter_snapshots(&self.last_scan_cycle_source_work);
+        m.last_cycle_replication_repair =
+            self.scanner_replication_repair_work_counter_snapshots(&self.last_scan_cycle_replication_repair_work);
         m.failed_cycles = self.failed_scan_cycles.load(Ordering::Relaxed);
         m.partial_cycles_unknown = self.partial_scan_cycles_unknown.load(Ordering::Relaxed);
         m.partial_cycles_runtime = self.partial_scan_cycles_runtime.load(Ordering::Relaxed);
@@ -2430,6 +2626,7 @@ impl Metrics {
         m.scan_checkpoint_ignored = self.scanner_checkpoint_ignored.load(Ordering::Relaxed);
         m.scan_checkpoint_stale = self.scanner_checkpoint_stale.load(Ordering::Relaxed);
         m.source_work = self.scanner_source_work_counter_snapshots(&self.scanner_source_work);
+        m.replication_repair = self.scanner_replication_repair_work_counter_snapshots(&self.scanner_replication_repair_work);
         m.partial_cycles = self.partial_scan_cycles.load(Ordering::Relaxed);
 
         // Lifetime operation counts
@@ -3069,6 +3266,60 @@ mod tests {
         assert_eq!(heal.executed, 0);
     }
 
+    #[tokio::test]
+    async fn report_includes_scanner_replication_repair_work() {
+        let metrics = Metrics::new();
+
+        metrics.record_scanner_replication_repair_work(
+            ScannerReplicationRepairKind::BucketObject,
+            ScannerSourceWorkUpdate::queued(2),
+        );
+        metrics.record_scanner_replication_repair_work(
+            ScannerReplicationRepairKind::BucketDeleteMarker,
+            ScannerSourceWorkUpdate::missed(1),
+        );
+        metrics.record_scanner_replication_repair_work(
+            ScannerReplicationRepairKind::BucketVersionPurge,
+            ScannerSourceWorkUpdate {
+                skipped: 3,
+                ..Default::default()
+            },
+        );
+        metrics.record_scanner_replication_repair_work(
+            ScannerReplicationRepairKind::BucketExistingObject,
+            ScannerSourceWorkUpdate::queued(4),
+        );
+
+        let report = metrics.report().await;
+        let object = report
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "object")
+            .expect("bucket object repair work should be visible");
+        assert_eq!(object.queued, 2);
+
+        let delete_marker = report
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "delete_marker")
+            .expect("bucket delete-marker repair work should be visible");
+        assert_eq!(delete_marker.missed, 1);
+
+        let version_purge = report
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "version_purge")
+            .expect("bucket version purge repair work should be visible");
+        assert_eq!(version_purge.skipped, 3);
+
+        let existing_object = report
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "existing_object")
+            .expect("bucket existing object repair work should be visible");
+        assert_eq!(existing_object.queued, 4);
+    }
+
     #[tokio::test]
     async fn report_includes_scan_cycle_source_work() {
         let metrics = Metrics::new();

crates/ecstore/src/metrics_realtime.rs

@@ -24,6 +24,7 @@ use rustfs_madmin::metrics::{
     ScannerMaintenanceControlSnapshot as MadminScannerMaintenanceControlSnapshot,
     ScannerMaintenanceSourceSnapshot as MadminScannerMaintenanceSourceSnapshot, ScannerMetrics as MadminScannerMetrics,
     ScannerPacingPressureSnapshot as MadminScannerPacingPressureSnapshot,
+    ScannerReplicationRepairSnapshot as MadminScannerReplicationRepairSnapshot,
     ScannerSourceCycleSnapshot as MadminScannerSourceCycleSnapshot, ScannerSourceWorkSnapshot as MadminScannerSourceWorkSnapshot,
     TimedAction as MadminTimedAction,
 };
@@ -276,6 +277,48 @@ fn to_madmin_scanner_metrics(metrics: rustfs_common::metrics::ScannerMetricsRepo
                 missed: work.missed,
             })
             .collect(),
+        replication_repair: metrics
+            .replication_repair
+            .into_iter()
+            .map(|repair| MadminScannerReplicationRepairSnapshot {
+                source: repair.source,
+                kind: repair.kind,
+                checked: repair.checked,
+                queued: repair.queued,
+                executed: repair.executed,
+                failed: repair.failed,
+                skipped: repair.skipped,
+                missed: repair.missed,
+            })
+            .collect(),
+        current_cycle_replication_repair: metrics
+            .current_cycle_replication_repair
+            .into_iter()
+            .map(|repair| MadminScannerReplicationRepairSnapshot {
+                source: repair.source,
+                kind: repair.kind,
+                checked: repair.checked,
+                queued: repair.queued,
+                executed: repair.executed,
+                failed: repair.failed,
+                skipped: repair.skipped,
+                missed: repair.missed,
+            })
+            .collect(),
+        last_cycle_replication_repair: metrics
+            .last_cycle_replication_repair
+            .into_iter()
+            .map(|repair| MadminScannerReplicationRepairSnapshot {
+                source: repair.source,
+                kind: repair.kind,
+                checked: repair.checked,
+                queued: repair.queued,
+                executed: repair.executed,
+                failed: repair.failed,
+                skipped: repair.skipped,
+                missed: repair.missed,
+            })
+            .collect(),
         partial_cycles: metrics.partial_cycles,
     }
 }
@@ -761,7 +804,37 @@ mod test {
                 skipped: 60,
                 missed: 61,
             }],
-            partial_cycles: 62,
+            replication_repair: vec![rustfs_common::metrics::ScannerReplicationRepairSnapshot {
+                source: "bucket_replication".to_string(),
+                kind: "object".to_string(),
+                checked: 62,
+                queued: 63,
+                executed: 64,
+                failed: 65,
+                skipped: 66,
+                missed: 67,
+            }],
+            current_cycle_replication_repair: vec![rustfs_common::metrics::ScannerReplicationRepairSnapshot {
+                source: "bucket_replication".to_string(),
+                kind: "delete_marker".to_string(),
+                checked: 68,
+                queued: 69,
+                executed: 70,
+                failed: 71,
+                skipped: 72,
+                missed: 73,
+            }],
+            last_cycle_replication_repair: vec![rustfs_common::metrics::ScannerReplicationRepairSnapshot {
+                source: "site_replication".to_string(),
+                kind: "active_resync".to_string(),
+                checked: 74,
+                queued: 75,
+                executed: 76,
+                failed: 77,
+                skipped: 78,
+                missed: 79,
+            }],
+            partial_cycles: 80,
             ..Default::default()
         });
 
@@ -831,6 +904,14 @@ mod test {
         assert_eq!(scanner.current_cycle_source_work[0].queued, 51);
         assert_eq!(scanner.last_cycle_source_work[0].source, "heal");
         assert_eq!(scanner.last_cycle_source_work[0].skipped, 60);
-        assert_eq!(scanner.partial_cycles, 62);
+        assert_eq!(scanner.replication_repair[0].source, "bucket_replication");
+        assert_eq!(scanner.replication_repair[0].kind, "object");
+        assert_eq!(scanner.replication_repair[0].missed, 67);
+        assert_eq!(scanner.current_cycle_replication_repair[0].kind, "delete_marker");
+        assert_eq!(scanner.current_cycle_replication_repair[0].queued, 69);
+        assert_eq!(scanner.last_cycle_replication_repair[0].source, "site_replication");
+        assert_eq!(scanner.last_cycle_replication_repair[0].kind, "active_resync");
+        assert_eq!(scanner.last_cycle_replication_repair[0].skipped, 78);
+        assert_eq!(scanner.partial_cycles, 80);
     }
 }

crates/madmin/src/metrics.rs

@@ -158,6 +158,26 @@ pub struct ScannerSourceWorkSnapshot {
     pub missed: u64,
 }
 
+#[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
+pub struct ScannerReplicationRepairSnapshot {
+    #[serde(rename = "source", default)]
+    pub source: String,
+    #[serde(rename = "kind", default)]
+    pub kind: String,
+    #[serde(rename = "checked", default)]
+    pub checked: u64,
+    #[serde(rename = "queued", default)]
+    pub queued: u64,
+    #[serde(rename = "executed", default)]
+    pub executed: u64,
+    #[serde(rename = "failed", default)]
+    pub failed: u64,
+    #[serde(rename = "skipped", default)]
+    pub skipped: u64,
+    #[serde(rename = "missed", default)]
+    pub missed: u64,
+}
+
 #[derive(Clone, Debug, Default, Serialize, Deserialize, PartialEq, Eq)]
 pub struct ScannerMaintenanceSourceSnapshot {
     #[serde(rename = "source", default)]
@@ -271,6 +291,17 @@ impl ScannerSourceWorkSnapshot {
     }
 }
 
+impl ScannerReplicationRepairSnapshot {
+    fn merge(&mut self, other: &Self) {
+        self.checked = self.checked.saturating_add(other.checked);
+        self.queued = self.queued.saturating_add(other.queued);
+        self.executed = self.executed.saturating_add(other.executed);
+        self.failed = self.failed.saturating_add(other.failed);
+        self.skipped = self.skipped.saturating_add(other.skipped);
+        self.missed = self.missed.saturating_add(other.missed);
+    }
+}
+
 fn merge_source_work_snapshots(target: &mut Vec<ScannerSourceWorkSnapshot>, source: &[ScannerSourceWorkSnapshot]) {
     for work in source {
         if let Some(existing) = target.iter_mut().find(|existing| existing.source == work.source) {
@@ -282,6 +313,23 @@ fn merge_source_work_snapshots(target: &mut Vec<ScannerSourceWorkSnapshot>, sour
     target.sort_by(|left, right| left.source.cmp(&right.source));
 }
 
+fn merge_replication_repair_snapshots(
+    target: &mut Vec<ScannerReplicationRepairSnapshot>,
+    source: &[ScannerReplicationRepairSnapshot],
+) {
+    for repair in source {
+        if let Some(existing) = target
+            .iter_mut()
+            .find(|existing| existing.source == repair.source && existing.kind == repair.kind)
+        {
+            existing.merge(repair);
+        } else {
+            target.push(repair.clone());
+        }
+    }
+    target.sort_by(|left, right| left.source.cmp(&right.source).then_with(|| left.kind.cmp(&right.kind)));
+}
+
 const SCANNER_PRIMARY_PRESSURE_NONE: &str = "none";
 
 fn default_scanner_primary_pressure() -> String {
@@ -599,6 +647,12 @@ pub struct ScannerMetrics {
     pub current_cycle_source_work: Vec<ScannerSourceWorkSnapshot>,
     #[serde(rename = "last_cycle_source_work", default)]
     pub last_cycle_source_work: Vec<ScannerSourceWorkSnapshot>,
+    #[serde(rename = "replication_repair", default)]
+    pub replication_repair: Vec<ScannerReplicationRepairSnapshot>,
+    #[serde(rename = "current_cycle_replication_repair", default)]
+    pub current_cycle_replication_repair: Vec<ScannerReplicationRepairSnapshot>,
+    #[serde(rename = "last_cycle_replication_repair", default)]
+    pub last_cycle_replication_repair: Vec<ScannerReplicationRepairSnapshot>,
     #[serde(rename = "partial_cycles", default)]
     pub partial_cycles: u64,
 }
@@ -730,6 +784,9 @@ impl ScannerMetrics {
         merge_source_work_snapshots(&mut self.source_work, &other.source_work);
         merge_source_work_snapshots(&mut self.current_cycle_source_work, &other.current_cycle_source_work);
         merge_source_work_snapshots(&mut self.last_cycle_source_work, &other.last_cycle_source_work);
+        merge_replication_repair_snapshots(&mut self.replication_repair, &other.replication_repair);
+        merge_replication_repair_snapshots(&mut self.current_cycle_replication_repair, &other.current_cycle_replication_repair);
+        merge_replication_repair_snapshots(&mut self.last_cycle_replication_repair, &other.last_cycle_replication_repair);
 
         if self.ongoing_buckets < other.ongoing_buckets {
             self.ongoing_buckets = other.ongoing_buckets;
@@ -1557,6 +1614,68 @@ mod tests {
         assert_eq!(usage.partial_cycles, 2);
     }
 
+    #[test]
+    fn scanner_metrics_merge_aggregates_replication_repair_status() {
+        let collected_at = Utc::now();
+        let mut scanner = ScannerMetrics {
+            collected_at,
+            replication_repair: vec![ScannerReplicationRepairSnapshot {
+                source: "bucket_replication".to_string(),
+                kind: "object".to_string(),
+                queued: 2,
+                ..Default::default()
+            }],
+            ..Default::default()
+        };
+
+        scanner.merge(&ScannerMetrics {
+            collected_at: collected_at + chrono::Duration::seconds(1),
+            replication_repair: vec![
+                ScannerReplicationRepairSnapshot {
+                    source: "bucket_replication".to_string(),
+                    kind: "object".to_string(),
+                    missed: 3,
+                    ..Default::default()
+                },
+                ScannerReplicationRepairSnapshot {
+                    source: "bucket_replication".to_string(),
+                    kind: "delete_marker".to_string(),
+                    skipped: 4,
+                    ..Default::default()
+                },
+                ScannerReplicationRepairSnapshot {
+                    source: "site_replication".to_string(),
+                    kind: "active_resync".to_string(),
+                    queued: 5,
+                    ..Default::default()
+                },
+            ],
+            ..Default::default()
+        });
+
+        let object = scanner
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "object")
+            .expect("bucket object repair snapshot should be merged");
+        assert_eq!(object.queued, 2);
+        assert_eq!(object.missed, 3);
+
+        let delete_marker = scanner
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "bucket_replication" && repair.kind == "delete_marker")
+            .expect("bucket delete-marker repair snapshot should be merged");
+        assert_eq!(delete_marker.skipped, 4);
+
+        let site_resync = scanner
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == "site_replication" && repair.kind == "active_resync")
+            .expect("site active resync snapshot should remain separate");
+        assert_eq!(site_resync.queued, 5);
+    }
+
     #[test]
     fn scanner_metrics_merge_preserves_distributed_status_fields() {
         let collected_at = Utc::now();

crates/scanner/src/scanner_folder.rs

@@ -36,8 +36,8 @@ use rustfs_common::heal_channel::{
     send_heal_request_with_admission,
 };
 use rustfs_common::metrics::{
-    IlmAction, Metric, Metrics, ScannerSourceWorkUpdate, ScannerWorkSource, UpdateCurrentPathFn, current_path_updater,
+    IlmAction, Metric, Metrics, ScannerReplicationRepairKind, ScannerSourceWorkUpdate, ScannerWorkSource, UpdateCurrentPathFn,
-    global_metrics,
+    current_path_updater, global_metrics,
 };
 use rustfs_ecstore::bucket::lifecycle::bucket_lifecycle_audit::LcEventSrc;
 use rustfs_ecstore::bucket::lifecycle::bucket_lifecycle_ops::{GLOBAL_ExpiryState, apply_expiry_rule};
@@ -59,7 +59,9 @@ use rustfs_ecstore::global::is_erasure;
 use rustfs_ecstore::pools::{path2_bucket_object, path2_bucket_object_with_base_path};
 use rustfs_ecstore::store_api::{ObjectInfo, ObjectToDelete};
 use rustfs_ecstore::store_utils::is_reserved_or_invalid_bucket;
-use rustfs_filemeta::{MetaCacheEntries, MetaCacheEntry, MetadataResolutionParams, ReplicationStatusType};
+use rustfs_filemeta::{
+    MetaCacheEntries, MetaCacheEntry, MetadataResolutionParams, ReplicateObjectInfo, ReplicationStatusType, ReplicationType,
+};
 use rustfs_utils::path::{SLASH_SEPARATOR, path_join_buf};
 use s3s::dto::{BucketLifecycleConfiguration, ObjectLockConfiguration};
 use time::OffsetDateTime;
@@ -205,16 +207,39 @@ fn record_scanner_ilm_action_if_queued(metrics: &Metrics, action: IlmAction, cou
     queued
 }
 
-fn record_scanner_replication_admission(metrics: &Metrics, admission: ReplicationQueueAdmission) {
+fn scanner_replication_work_update(admission: ReplicationQueueAdmission) -> ScannerSourceWorkUpdate {
-    let work = match admission {
+    match admission {
         ReplicationQueueAdmission::Queued => ScannerSourceWorkUpdate::queued(1),
         ReplicationQueueAdmission::Missed => ScannerSourceWorkUpdate::missed(1),
         ReplicationQueueAdmission::Skipped => ScannerSourceWorkUpdate {
             skipped: 1,
             ..Default::default()
         },
-    };
+    }
+}
+
+fn scanner_replication_repair_kind(roi: &ReplicateObjectInfo) -> Option<ScannerReplicationRepairKind> {
+    if roi.bucket.is_empty() && roi.name.is_empty() {
+        return None;
+    }
+
+    if roi.op_type == ReplicationType::ExistingObject || roi.existing_obj_resync.must_resync() {
+        Some(ScannerReplicationRepairKind::BucketExistingObject)
+    } else if !roi.version_purge_status.is_empty() {
+        Some(ScannerReplicationRepairKind::BucketVersionPurge)
+    } else if roi.delete_marker {
+        Some(ScannerReplicationRepairKind::BucketDeleteMarker)
+    } else {
+        Some(ScannerReplicationRepairKind::BucketObject)
+    }
+}
+
+fn record_scanner_replication_admission(metrics: &Metrics, roi: &ReplicateObjectInfo, admission: ReplicationQueueAdmission) {
+    let work = scanner_replication_work_update(admission);
     metrics.record_scanner_source_work(ScannerWorkSource::BucketReplication, work);
+    if let Some(kind) = scanner_replication_repair_kind(roi) {
+        metrics.record_scanner_replication_repair_work(kind, work);
+    }
 }
 
 fn scanner_heal_source(scan_mode: HealScanMode) -> ScannerWorkSource {
@@ -920,8 +945,8 @@ impl ScannerItem {
         let done_replication = Metrics::time(Metric::CheckReplication);
         let replication_result = queue_replication_heal_internal(&oi.bucket, oi.clone(), (*replication).clone(), 0).await;
         done_replication();
-        record_scanner_replication_admission(global_metrics(), replication_result.admission);
         let roi = replication_result.object_info;
+        record_scanner_replication_admission(global_metrics(), &roi, replication_result.admission);
         if !Self::should_account_replication_stats(oi) {
             return;
         }
@@ -2409,7 +2434,7 @@ mod tests {
 
     use super::*;
     use rustfs_ecstore::disk::{DiskOption, endpoint::Endpoint, new_disk};
-    use rustfs_filemeta::VersionPurgeStatusType;
+    use rustfs_filemeta::{ReplicateObjectInfo, ReplicationType, ResyncDecision, ResyncTargetDecision, VersionPurgeStatusType};
     use serial_test::serial;
     #[cfg(unix)]
     use std::os::unix::fs::{PermissionsExt, symlink};
@@ -2605,10 +2630,15 @@ mod tests {
     #[tokio::test]
     async fn test_scanner_replication_admission_accounting_maps_source_work() {
         let metrics = Metrics::new();
+        let object = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "object-a".to_string(),
+            ..Default::default()
+        };
 
-        record_scanner_replication_admission(&metrics, ReplicationQueueAdmission::Skipped);
+        record_scanner_replication_admission(&metrics, &object, ReplicationQueueAdmission::Skipped);
-        record_scanner_replication_admission(&metrics, ReplicationQueueAdmission::Queued);
+        record_scanner_replication_admission(&metrics, &object, ReplicationQueueAdmission::Queued);
-        record_scanner_replication_admission(&metrics, ReplicationQueueAdmission::Missed);
+        record_scanner_replication_admission(&metrics, &object, ReplicationQueueAdmission::Missed);
 
         let report = metrics.report().await;
         let replication = report
@@ -2620,6 +2650,83 @@ mod tests {
         assert_eq!(replication.skipped, 1);
         assert_eq!(replication.queued, 1);
         assert_eq!(replication.missed, 1);
+
+        let object_repair = report
+            .replication_repair
+            .iter()
+            .find(|repair| repair.source == ScannerWorkSource::BucketReplication.as_str() && repair.kind == "object")
+            .expect("bucket object repair work should be visible");
+        assert_eq!(object_repair.skipped, 1);
+        assert_eq!(object_repair.queued, 1);
+        assert_eq!(object_repair.missed, 1);
+    }
+
+    #[test]
+    fn test_scanner_replication_repair_kind_maps_bucket_variants() {
+        let object = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "object-a".to_string(),
+            replication_status: ReplicationStatusType::Pending,
+            ..Default::default()
+        };
+        assert_eq!(scanner_replication_repair_kind(&object), Some(ScannerReplicationRepairKind::BucketObject));
+
+        let delete_marker = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "delete-marker-a".to_string(),
+            delete_marker: true,
+            replication_status: ReplicationStatusType::Failed,
+            ..Default::default()
+        };
+        assert_eq!(
+            scanner_replication_repair_kind(&delete_marker),
+            Some(ScannerReplicationRepairKind::BucketDeleteMarker)
+        );
+
+        let version_purge = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "version-purge-a".to_string(),
+            version_purge_status: VersionPurgeStatusType::Pending,
+            ..Default::default()
+        };
+        assert_eq!(
+            scanner_replication_repair_kind(&version_purge),
+            Some(ScannerReplicationRepairKind::BucketVersionPurge)
+        );
+
+        let existing_object = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "existing-object-a".to_string(),
+            op_type: ReplicationType::ExistingObject,
+            ..Default::default()
+        };
+        assert_eq!(
+            scanner_replication_repair_kind(&existing_object),
+            Some(ScannerReplicationRepairKind::BucketExistingObject)
+        );
+
+        let mut existing_obj_resync = ResyncDecision::new();
+        existing_obj_resync.targets.insert(
+            "arn:minio:replication:::target".to_string(),
+            ResyncTargetDecision {
+                replicate: true,
+                ..Default::default()
+            },
+        );
+        let existing_delete_marker = ReplicateObjectInfo {
+            bucket: "bucket-a".to_string(),
+            name: "existing-delete-marker-a".to_string(),
+            delete_marker: true,
+            replication_status: ReplicationStatusType::Completed,
+            existing_obj_resync,
+            ..Default::default()
+        };
+        assert_eq!(
+            scanner_replication_repair_kind(&existing_delete_marker),
+            Some(ScannerReplicationRepairKind::BucketExistingObject)
+        );
+
+        assert_eq!(scanner_replication_repair_kind(&ReplicateObjectInfo::default()), None);
     }
 
     #[tokio::test]

docs/operations/scanner-benchmark-runbook.md

@@ -292,6 +292,9 @@ Compare these fields between baseline and tuned runs:
 | `metrics.source_work` | Shows cumulative work found, queued, skipped, missed, executed, and failed by source. |
 | `metrics.current_cycle_source_work` | Shows which source is consuming the current scan cycle. |
 | `metrics.last_cycle_source_work` | Shows which source consumed the previous scan cycle. |
+| `metrics.replication_repair` | Splits scanner-discovered replication repair by source and kind, including bucket object, delete-marker, version-purge, existing-object repair, and site replication boundary states. |
+| `metrics.current_cycle_replication_repair` | Shows which replication repair kind is being discovered or admitted in the current cycle. |
+| `metrics.last_cycle_replication_repair` | Shows which replication repair kind consumed the previous cycle. |
 | `metrics.lifecycle_expiry.current_queued` | Shows scanner-driven expiry/delete work waiting in the expiry worker queue. |
 | `metrics.lifecycle_expiry.current_active` | Shows scanner-driven expiry/delete work currently running in expiry workers. |
 | `metrics.lifecycle_expiry.queue_missed` | Shows expiry/delete queue admission failures outside the scanner walk itself. |

docs/operations/scanner-runtime-controls.md

@@ -99,6 +99,7 @@ metrics.lifecycle_transition.current_queued
 metrics.lifecycle_transition.scanner_missed
 metrics.maintenance_control.primary_control
 metrics.source_work
+metrics.replication_repair
 metrics.scan_checkpoint
 ```
 
@@ -147,6 +148,28 @@ Use these counters to decide whether scan progress is limited by scanner pacing
 or by a downstream subsystem such as lifecycle transition, replication repair,
 or heal admission.
 
+## Reading Replication Repair
+
+`metrics.replication_repair`, `metrics.current_cycle_replication_repair`, and
+`metrics.last_cycle_replication_repair` split scanner-discovered replication
+repair work by source and repair kind.
+
+Each entry has the same `checked`, `queued`, `executed`, `failed`, `skipped`,
+and `missed` counters used by `source_work`, plus:
+
+| Field | Meaning |
+|---|---|
+| `source` | `bucket_replication` for bucket replication repair, or `site_replication` for site replication boundary signals. |
+| `kind` | Bucket repair kinds are `object`, `delete_marker`, `version_purge`, and `existing_object`. Site replication boundary kinds are `passive_requeue` and `active_resync`. |
+
+For bucket replication, `queued` means scanner-discovered repair was admitted
+to the replication queue, `missed` means the queue or worker path could not
+accept it, and `skipped` means the object did not require a new repair task.
+
+The site replication kinds keep passive scanner discovery separate from active
+resync. Scanner status may report site replication boundary counters, but the
+scanner should not be treated as the active site replication resync controller.
+
 ## Reading Maintenance Control
 
 `metrics.maintenance_control` derives a source-level control snapshot from