rmatharu commented on a change in pull request #1227: SAMZA-2404: [SEP-22] 
Container Placement Handler for dispatching container placement messages 
between metastore and JobCoordinator
URL: https://github.com/apache/samza/pull/1227#discussion_r366502607
 
 

 ##########
 File path: 
samza-core/src/main/java/org/apache/samza/clustermanager/ClusterBasedJobCoordinator.java
 ##########
 @@ -264,9 +279,15 @@ public void run() {
       partitionMonitor.ifPresent(StreamPartitionCountMonitor::start);
       inputStreamRegexMonitor.ifPresent(StreamRegexMonitor::start);
 
+      // ContainerPlacementHandler thread has to start after the cpm is started
+      LOG.info("Starting the container placement handler thread");
+      containerPlacementUtil.start();
+      containerPlacementHandlerThread.start();
+
       boolean isInterrupted = false;
 
 Review comment:
   should this be volatile?

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