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

Reply via email to