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Posted to issues@ozone.apache.org by "Siyao Meng (Jira)" <ji...@apache.org> on 2026/10/19 23:09:00 UTC

[jira] [Created] (HDDS-17165) Expose total snapshot exclusive and referenced size as OM metrics

Siyao Meng created HDDS-17165:
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             Summary: Expose total snapshot exclusive and referenced size as OM metrics
                 Key: HDDS-17165
                 URL: https://issues.apache.org/jira/browse/HDDS-17165
             Project: Apache Ozone
          Issue Type: Improvement
          Components: metrics, Snapshot
            Reporter: Siyao Meng


Snapshot exclusive and referenced sizes are stored in SnapshotInfo and visible per snapshot through the CLI, but no metric reports them. Operators cannot see how much cluster space is held only by snapshots versus live data.

Add OM gauges for the total exclusive size (and replicated size) and total referenced size across active snapshots, so dashboards can break used capacity down into user data and snapshots.

The value is only as accurate as the exclusive size calculation, see HDDS-16321.



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