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Posted to mapreduce-issues@hadoop.apache.org by "Dick King (JIRA)" <ji...@apache.org> on 2010/04/15 19:33:49 UTC
[jira] Assigned: (MAPREDUCE-1641) Job submission should fail if
same uri is added for mapred.cache.files and mapred.cache.archives
[ https://issues.apache.org/jira/browse/MAPREDUCE-1641?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Dick King reassigned MAPREDUCE-1641:
------------------------------------
Assignee: Dick King
> Job submission should fail if same uri is added for mapred.cache.files and mapred.cache.archives
> ------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1641
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1641
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: distributed-cache
> Reporter: Amareshwari Sriramadasu
> Assignee: Dick King
> Fix For: 0.22.0
>
>
> The behavior of mapred.cache.files and mapred.cache.archives is different during localization in the following way:
> If a jar file is added to mapred.cache.files, it will be localized under TaskTracker under a unique path.
> If a jar file is added to mapred.cache.archives, it will be localized under a unique path in a directory named the jar file name, and will be unarchived under the same directory.
> If same jar file is passed for both the configurations, the behavior undefined. Thus the job submission should fail.
> Currently, since distributed cache processes files before archives, the jar file will be just localized and not unarchived.
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