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Posted to yarn-dev@hadoop.apache.org by "Andrey Klochkov (JIRA)" <ji...@apache.org> on 2013/09/12 00:59:53 UTC

[jira] [Created] (YARN-1183) MiniYARNCluster shutdown takes several minutes intermittently

Andrey Klochkov created YARN-1183:
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             Summary: MiniYARNCluster shutdown takes several minutes intermittently
                 Key: YARN-1183
                 URL: https://issues.apache.org/jira/browse/YARN-1183
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Andrey Klochkov


As described in MAPREDUCE-5501 sometimes M/R tests leave MRAppMaster java processes living for several minutes after successful completion of the corresponding test. There is a concurrency issue in MiniYARNCluster shutdown logic which leads to this. Sometimes RM stops before an app master sends it's last report, and then the app master keeps retrying for >6 minutes. In some cases it leads to failures in subsequent tests, and it affects performance of tests as app masters eat resources.

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