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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5248) Job directories could remain undeleted in some scenarios after job completes.
Date Thu, 19 Feb 2009 05:35:01 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5248?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Devaraj Das updated HADOOP-5248:
--------------------------------

    Attachment: 5248.patch

Attaching a patch. Testing in progress.

> Job directories could remain undeleted in some scenarios after job completes.
> -----------------------------------------------------------------------------
>
>                 Key: HADOOP-5248
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5248
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Hemanth Yamijala
>            Assignee: Devaraj Das
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: 5248.patch
>
>
> I observed a couple of times that when a job has completed, its job directories were
not cleaned up. In discussion, it seems like there is a condition when only reduces from a
job are run on a machine and no maps, the TT does not get a signal from the JT to delete the
files and could be left behind. FYI, JVM reuse was enabled at the time. I can confirm that
'KillJobAction' was not received by the TT.

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