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https://issues.apache.org/jira/browse/HDDS-14993?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Wei-Chiu Chuang updated HDDS-14993:
-----------------------------------
Epic Link: HDDS-17671 (was: HDDS-15130)
> [Snapshot] Visualize SST pruning and snapshot deletion metrics in Grafana
> -------------------------------------------------------------------------
>
> Key: HDDS-14993
> URL: https://issues.apache.org/jira/browse/HDDS-14993
> Project: Apache Ozone
> Issue Type: Task
> Reporter: Wei-Chiu Chuang
> Priority: Major
>
> h2. Completed scope
> HDDS-15256, implemented by [PR
> #10253|https://github.com/apache/ozone/pull/10253] and merged on 18 May 2026,
> added the Snapshot Defrag Metrics panels originally requested here. It
> includes overall/full/incremental defrag counts and failures, skipped
> snapshots, tables compacted, and delta files processed. These panels do not
> need to be implemented again.
> The PR did not add SSTFilePruningMetrics or the four DeletingServiceMetrics
> snapshot gauges listed below; those remain the scope of this issue.
> h2. Remaining scope: SST pruning and snapshot deletion metrics in Grafana
> Add the remaining observability panels to the existing dashboard:
> # SSTFilePruningMetrics: filesPrunedTotal, filesPrunedLast,
> filesSkippedTotal, compactionsProcessed, pruneQueueSize, and pruningFailures.
> # DeletingServiceMetrics snapshot gauges: snapKeysReclaimedLast,
> snapReclaimedSizeLast, snapKeysIteratedLast, and snapKeysNotReclaimableLast.
> Use the actual exported Prometheus metric names and labels from these metric
> sources. Include appropriate units, descriptions, and OM-instance filtering,
> following existing dashboard conventions. Verify the panels against exported
> metrics so queries refer to real series.
> h2. Existing implementation and metric sources
> Repository baseline: d0949f291791c399f3e54409fcb92656a80597a4
> * Dashboard with existing defrag panels:
> https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/dist/src/main/compose/common/grafana/dashboards/Ozone%20-%20OM%20Snapshot.json#L2600
> * SST pruning metric definitions:
> https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-hdds/rocksdb-checkpoint-differ/src/main/java/org/apache/ozone/rocksdiff/SSTFilePruningMetrics.java#L34
> Related dashboard work: HDDS-13181.
> cc [~smeng]
> * Deletion metric definitions:
> https://github.com/apache/ozone/blob/d0949f291791c399f3e54409fcb92656a80597a4/hadoop-ozone/ozone-manager/src/main/java/org/apache/hadoop/ozone/om/DeletingServiceMetrics.java#L109
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