jackjlli commented on a change in pull request #6483: URL: https://github.com/apache/incubator-pinot/pull/6483#discussion_r564138208
########## File path: pinot-controller/src/main/java/org/apache/pinot/controller/helix/core/realtime/PinotLLCRealtimeSegmentManager.java ########## @@ -793,6 +793,27 @@ void updateInstanceStatesForNewConsumingSegment(Map<String, Map<String, String>> LOGGER.info("Updating segment: {} to ONLINE state", committingSegmentName); } + // There used to be a race condition in pinot (caused by heavy GC on the controller during segment commit) Review comment: The fix is the usage of `Stat` class. This is the PR I made(https://github.com/apache/incubator-pinot/pull/2361). Now it's in `persistSegmentZKMetadata` method. If the former lead controller tried to persist its change, it'd fail since the stat version has already been changed. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org --------------------------------------------------------------------- To unsubscribe, e-mail: commits-unsubscr...@pinot.apache.org For additional commands, e-mail: commits-h...@pinot.apache.org