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https://issues.apache.org/jira/browse/YARN-5022?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15266614#comment-15266614
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sandflee commented on YARN-5022:
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notice that NM wouldn't clean app log dir if nm start with recovery disabled.
seems a bug. open YARN-5027 to discuss
> NM shutdown takes too much time
> -------------------------------
>
> Key: YARN-5022
> URL: https://issues.apache.org/jira/browse/YARN-5022
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: sandflee
> Assignee: sandflee
> Attachments: YARN-5022.01.patch, nm.log
>
>
> start NM with nm recovery disabled and log aggregation disabled.
> It takes about 14s for nm to quit while receiving SIGTERM,
> 1, 4s for containerManager to wait all applications removed from context
> 2, 10s for NonAggregatingLogHandler to wait delayed log deleter
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