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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (YARN-6846) Nodemanager can fail to fully delete application local directories when applications are killed
Date Fri, 21 Jul 2017 17:30:00 GMT

     [ https://issues.apache.org/jira/browse/YARN-6846?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jason Lowe updated YARN-6846:
-----------------------------
    Attachment: YARN-6846.002.patch

Patch to address the whitespace issues.

> Nodemanager can fail to fully delete application local directories when applications
are killed
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-6846
>                 URL: https://issues.apache.org/jira/browse/YARN-6846
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>    Affects Versions: 2.8.1
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>         Attachments: YARN-6846.001.patch, YARN-6846.002.patch
>
>
> When an application is killed all of the running containers are killed and the app waits
for the containers to complete before cleaning up.  As each container completes the container
directory is deleted via the DeletionService.  After all containers have completed the app
completes and the app directory is deleted.  If the app completes quickly enough then the
deletion of the container and app directories can race against each other.  If the container
deletion executor deletes a file just before the application deletion executor then it can
cause the application deletion executor to fail, leaving the remaining entries in the application
directory lingering.



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