Himanshu-g81 opened a new pull request, #2607:
URL: https://github.com/apache/phoenix/pull/2607
Adds six standby replay-side performance metrics, each inheriting the
per-haGroup dimension from its metric source.
ReplicationLogDiscoveryReplay:
- endToEndReplayLagMs (histogram): round-eligible -> replay finished
- pickupLagMs (histogram): round-eligible -> file claimed (rename into the
in-progress directory)
ReplicationLogDiscovery (shared base):
- roundsExceedingRoundTime (counter): rounds whose new-file processing
duration exceeded roundTimeMills
ReplicationLogProcessor:
- mutationsReplayedCount (counter): replay throughput across all files
- mutationsPerFile (histogram): per-file mutation count, recorded only for
files that replayed at least one mutation so rotation-only files do not skew
the distribution toward zero
ReplicationLogTracker:
- markFileInProgressCollisionCount (counter): claim renames lost to a
competing process, a strict subset of the request count
The lag metrics use the round-eligible instant (round end + waiting buffer)
as the zero reference, so they exclude the fixed built-in wait rather than
measuring raw file age.
Tests: metric-source plumbing for all six metrics, plus recording-site tests
for the collision metric (rename-loses vs rename-wins) and the slow-round
metric (fast round vs slow round).
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