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https://issues.apache.org/jira/browse/HADOOP-622?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12513621
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Runping Qi commented on HADOOP-622:
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When the user's app depend some libbrary that use JNI, the corresponding .so
files have to be available.
One way is achieve this is thatthe user put the .so files in the lib subdir.
When the tasktracker launch the child, it adds the lib dir to the library path.
> Users should be able to change the environment in which there maps/reduces
> run.
> -------------------------------------------------------------------------------
>
> Key: HADOOP-622
> URL: https://issues.apache.org/jira/browse/HADOOP-622
> Project: Hadoop
> Issue Type: Improvement
> Components: mapred
> Reporter: Mahadev konar
> Assignee: Owen O'Malley
> Priority: Minor
>
> This would be useful with caching. So you would be avble to say, cache file X
> and then should be able to change the environment variable like
> PATH/LD_LIBRARY_PATH to include the local path hwere the file was cached.
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