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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3760) FSDataOutputStream leak in AggregatedLogFormat.LogWriter.close()
Date Thu, 06 Apr 2017 21:53:41 GMT

    [ https://issues.apache.org/jira/browse/YARN-3760?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15959826#comment-15959826
] 

Haibo Chen commented on YARN-3760:
----------------------------------

Thanks [~djp] for review and commit!

> FSDataOutputStream leak in AggregatedLogFormat.LogWriter.close()
> ----------------------------------------------------------------
>
>                 Key: YARN-3760
>                 URL: https://issues.apache.org/jira/browse/YARN-3760
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.4.0
>            Reporter: Daryn Sharp
>            Assignee: Haibo Chen
>            Priority: Critical
>         Attachments: YARN-3760.00.patch, YARN-3760.01.patch
>
>
> The aggregated log file does not appear to be properly closed when writes fail.  This
leaves a lease renewer active in the NM that spams the NN with lease renewals.  If the token
is marked not to be cancelled, the renewals appear to continue until the token expires.  If
the token is cancelled, the periodic renew spam turns into a flood of failed connections until
the lease renewer gives up.



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