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From "Sandy Ryza (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-5047) keep.failed.task.files=true causes job failure on secure clusters
Date Mon, 11 Mar 2013 18:55:12 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-5047?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13599133#comment-13599133
] 

Sandy Ryza commented on MAPREDUCE-5047:
---------------------------------------

Attempted to make sure that IsolationRunner still works, and it appears to be broken for other
reasons, on both secure and non-secure clusters.
                
> keep.failed.task.files=true causes job failure on secure clusters
> -----------------------------------------------------------------
>
>                 Key: MAPREDUCE-5047
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5047
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: task, tasktracker
>    Affects Versions: 1.1.1
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: MAPREDUCE-5047.patch
>
>
> To support IsolationRunner, split info is written to local directories.  This occurs
inside MapTask#localizeConfiguration, which is called both tasktracker and by the child JVM.
 On a secure cluster, the tasktacker's attempt to write it fails, because the tasktracker
does not have permission to write to the user's directory. It is likely that the call to localizeConfiguration
in the tasktracker can be removed. 

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