Github user lvfangmin commented on a diff in the pull request: https://github.com/apache/zookeeper/pull/689#discussion_r236063171 --- Diff: zookeeper-server/src/main/java/org/apache/zookeeper/server/watch/WatcherCleaner.java --- @@ -102,12 +103,13 @@ public void addDeadWatcher(int watcherBit) { totalDeadWatchers.get() >= maxInProcessingDeadWatchers) { try { RATE_LOGGER.rateLimitLog("Waiting for dead watchers cleaning"); - synchronized(totalDeadWatchers) { - totalDeadWatchers.wait(100); + synchronized(processingCompletedEvent) { + processingCompletedEvent.wait(100); --- End diff -- Can we change this with 4 extra white spaces relative to the synchronized statement?
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