Jackie-Jiang commented on code in PR #15681:
URL: https://github.com/apache/pinot/pull/15681#discussion_r2069314466
##########
pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/relocation/SegmentRelocator.java:
##########
@@ -120,17 +121,23 @@ public SegmentRelocator(PinotHelixResourceManager
pinotHelixResourceManager,
LOGGER.warn("Got interrupted while rebalancing tables sequentially",
e);
}
});
+ _tablesUndergoingRebalance = null;
} else {
_waitingTables = null;
_waitingQueue = null;
+ _tablesUndergoingRebalance = ConcurrentHashMap.newKeySet();
}
}
@Override
protected void processTable(String tableNameWithType) {
if (_waitingTables == null) {
- LOGGER.debug("Rebalance table: {} immediately", tableNameWithType);
- _executorService.submit(() -> rebalanceTable(tableNameWithType));
+ if (_tablesUndergoingRebalance == null ||
!_tablesUndergoingRebalance.contains(tableNameWithType)) {
Review Comment:
I usually use `assert _tablesUndergoingRebalance != null;` to suppress the
warning. It also works as a note to developers that it cannot be `null` when
reached
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