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From GitBox <...@apache.org>
Subject [GitHub] [incubator-pinot] mcvsubbu commented on a change in pull request #5039: Close Kafka consumer before building or downloading immutable segment
Date Thu, 06 Feb 2020 18:28:29 GMT
mcvsubbu commented on a change in pull request #5039: Close Kafka consumer before building
or downloading immutable segment
URL: https://github.com/apache/incubator-pinot/pull/5039#discussion_r376003657
 
 

 ##########
 File path: pinot-core/src/main/java/org/apache/pinot/core/data/manager/realtime/LLRealtimeSegmentDataManager.java
 ##########
 @@ -1106,6 +1130,15 @@ public LLRealtimeSegmentDataManager(RealtimeSegmentZKMetadata segmentZKMetadata,
 
     // Create record transformer
     _recordTransformer = CompositeTransformer.getDefaultTransformer(schema);
+
+    // Acquire semaphore to create Kafka consumers
+    try {
+      _partitionIdSemaphore.acquire();
+    } catch (InterruptedException e) {
+      String errorMsg = "InterruptedException when acquiring semaphore for Segment: " + _segmentNameStr;
+      segmentLogger.error(errorMsg);
 
 Review comment:
   For now, this may be ok that we get an exception during shutdown (at times). Eventualy,
we need a clean way of shutting down without throwing exceptions

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