minni31 commented on a change in pull request #3754:
URL: https://github.com/apache/hadoop/pull/3754#discussion_r782082703
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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/ApplicationMasterService.java
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@@ -395,7 +397,23 @@ public AllocateResponse allocate(AllocateRequest request)
ApplicationAttemptId appAttemptId =
amrmTokenIdentifier.getApplicationAttemptId();
+ RMAppAttemptMetrics rmMetrics = getAppAttemptMetrics(appAttemptId);
+ // we do this here to prevent the internal lock in allocate()
+ if (rmMetrics != null) {
+ rmMetrics.setAllocateLatenciesTimestamps(request.getAskList());
+ }
+ AllocateResponse response = allocate(request, amrmTokenIdentifier);
Review comment:
Not really, second time we are updating latencies based on
AllocateResponse, so allocate call is required in between.
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