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https://issues.apache.org/jira/browse/YARN-1183?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13765735#comment-13765735
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Andrey Klochkov commented on YARN-1183:
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Yep, you're right about trackingUrl being able to change. Please disregard this
part.
> 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
> Attachments: YARN-1183.patch
>
>
> 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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