J-HowHuang commented on code in PR #15518:
URL: https://github.com/apache/pinot/pull/15518#discussion_r2060641042
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/rebalance/ZkBasedTableRebalanceObserver.java:
##########
@@ -234,6 +238,35 @@ public int getNumUpdatesToZk() {
return _numUpdatesToZk;
}
+ /**
+ * Emits the rebalance progress in percent to the metrics. Uses the
percentage of remaining segments to be added as
+ * the indicator of the overall progress.
+ * Notice that for some jobs, the metrics may not be exactly accurate and
would not be 100% when the job is done.
+ * (e.g. when `lowDiskMode=false`, the job finishes without waiting for
`totalRemainingSegmentsToBeDeleted` become 0)
Review Comment:
done
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