jia-gao commented on code in PR #1677:
URL: https://github.com/apache/samza/pull/1677#discussion_r1267127390


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samza-yarn/src/main/java/org/apache/samza/job/yarn/YarnClusterResourceManager.java:
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@@ -298,6 +298,7 @@ public void releaseResources(SamzaResource resource) {
       }
       amClient.releaseAssignedContainer(container.getId());
       allocatedResources.remove(resource);
+      metrics.decrementAllocatedContainersInBuffer();

Review Comment:
   I want this metric to always in sync with "allocatedResources" in this class.
   stopStreamProcessor doesn't remove container from allocatedResources.
   Actually, in stopStreamProcessor. it calls 
amClient.releaseAssignedContainer(yarnContainer.id()) only when 
allocatedResources.get(resource) == null which means the container was not in 
the "allocatedResources" Map already



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