xyuanlu commented on a change in pull request #1456:
URL: https://github.com/apache/helix/pull/1456#discussion_r508882473
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File path:
helix-core/src/main/java/org/apache/helix/controller/GenericHelixController.java
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@@ -333,15 +338,19 @@ private void forceRebalance(HelixManager manager,
ClusterEventType eventType) {
void startPeriodRebalance(long period, HelixManager manager) {
if (period != _timerPeriod) {
logger.info("Controller starting periodical rebalance timer at period "
+ period);
- if (_periodicalRebalanceTimer != null) {
- _periodicalRebalanceTimer.cancel();
+ ScheduledFuture lastScheduledFuture = null;
+ synchronized (_lock) {
+ if (_periodicRebalancerFutureTasks!=null &&
!_periodicRebalancerFutureTasks.isCancelled()) {
Review comment:
Yea no need to check here. Updated.
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