bibinchundatt commented on a change in pull request #3717:
URL: https://github.com/apache/hadoop/pull/3717#discussion_r763650495
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File path:
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/scheduler/distributed/NodeQueueLoadMonitor.java
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@@ -261,12 +391,15 @@ protected void onNewNodeAdded(
if (rmNode.getState() != NodeState.DECOMMISSIONING &&
(estimatedQueueWaitTime != -1 ||
- comparator == LoadComparator.QUEUE_LENGTH)) {
+ comparator == LoadComparator.QUEUE_LENGTH ||
+ comparator == LoadComparator.QUEUE_LENGTH_THEN_RESOURCES)) {
this.clusterNodes.put(rmNode.getNodeID(),
Review comment:
Every second we are taking too many write locks of ClusterNode. IIUC
that not the best optimized option. We should probably take the write lock once
and update all the values like waitTime,SetQueueLength,labels etc..
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