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Date: Tue, 30 Jul 2013 22:19:49 +0000 (UTC)
From: "Sandy Ryza (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
Message-ID: <JIRA.12655667.1372718042743.140056.1375222789720@arcas>
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References: <JIRA.12655667.1372718042743@arcas>
Subject: [jira] [Commented] (MAPREDUCE-5367) Local jobs all use same local
 working directory
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-5367?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13724508#comment-13724508 ] 

Sandy Ryza commented on MAPREDUCE-5367:
---------------------------------------

Uploading patches for both MR1 and MR2.  For both, the job directory will be localRunner/user/job_id and the task directories will be localRunner/user/job_id/task_id.
                
> Local jobs all use same local working directory
> -----------------------------------------------
>
>                 Key: MAPREDUCE-5367
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5367
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>    Affects Versions: 1.2.0
>            Reporter: Sandy Ryza
>            Assignee: Sandy Ryza
>         Attachments: MAPREDUCE-5367-b1-1.patch, MAPREDUCE-5367-b1.patch
>
>
> This means that local jobs, even in different JVMs, can't run concurrently because they might delete each other's files during work directory setup.

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