devmadhuu opened a new pull request, #10384:
URL: https://github.com/apache/ozone/pull/10384
## What changes were proposed in this pull request?
This PR extends `ReconScmContainerSyncMetrics` to expose per-state metrics
for the four actively reconciled container states:
- `OPEN`
- `QUASI_CLOSED`
- `CLOSED`
- `DELETED`
For each state, Recon now reports:
- Last sync-pass duration in milliseconds.
- Last pre-sync observed container-count drift, computed as `SCM count -
Recon count`.
The existing overall targeted sync metrics remain unchanged:
- `targetedSyncStatus`
- `lastTargetedSyncDurationMs`
## Why are the changes needed?
Recon periodically syncs container state from SCM, every 6 hours by
default. Before this change, metrics only showed the overall targeted sync
status and total duration. Admins could not tell:
- Which state pass took time.
- Whether the latest cycle observed count drift for a specific state.
- Whether SCM had more or fewer containers than Recon for a given
reconciled state.
The new metrics make this visible in Hadoop metrics and downstream
Prometheus time-series data.
## What is the link to the Apache JIRA
https://issues.apache.org/jira/browse/HDDS-15413
## How was this patch tested?
Ran the below tests:
`TestReconStorageContainerSyncHelper`, `TestReconScmContainerSyncMetrics`
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