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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2880) Fix classpath construction for MRv2
Date Sat, 17 Sep 2011 08:42:09 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2880?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Arun C Murthy updated MAPREDUCE-2880:

    Attachment: MAPREDUCE-2880.patch

Update patch, works on a secure cluster.

Work left:
* Add whitelist of env for child, not all of NM's env
* Make JAVA_HOME configurable by users so they can use alternate JVMs
* Admin opts for java (e.g. -Djava.net.preferIPv4Stack=true)
* Merge java.library.path 
* Handle LD_LIBRARY_PATH from user and admin

> Fix classpath construction for MRv2
> -----------------------------------
>                 Key: MAPREDUCE-2880
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2880
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: mrv2
>    Affects Versions: 0.23.0
>            Reporter: Luke Lu
>            Assignee: Arun C Murthy
>             Fix For: 0.23.0
>         Attachments: MAPREDUCE-2880.patch, MAPREDUCE-2880.patch
> MRConstants.java refers a hard-coded version of MR AM jar. The build config works around
with a symlink. The deployment currently needs symlink workaround as well. We need to fix
this so that we can actually launch arbitrary versions of AMs.

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