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From "Haibo Chen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-3760) FSDataOutputStream leak in AggregatedLogFormat.LogWriter.close()
Date Wed, 05 Apr 2017 20:43:41 GMT

     [ https://issues.apache.org/jira/browse/YARN-3760?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Haibo Chen updated YARN-3760:
-----------------------------
    Attachment: YARN-3760.01.patch

Updated the patch to address Miklos' comment per offline discussion.

> 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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