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https://issues.apache.org/jira/browse/HADOOP-6058?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12721126#action_12721126
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Amar Kamat commented on HADOOP-6058:
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Something similar is done today. For LD_LIBRARY_PATH, we prepend the pwd value
(work dir) and pass it to the child env. Putting LD_LIBRARY_PATH in the white
listed set makes sense now. Wondering if
LD_LIBRARY_PATH=$PWD:$LD_LIBRARY_PATH also makes sense and helps us keep it
simple and generic. Thoughts?
> The TaskTracker's shell environment should not be passed to the children.
> -------------------------------------------------------------------------
>
> Key: HADOOP-6058
> URL: https://issues.apache.org/jira/browse/HADOOP-6058
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Reporter: Owen O'Malley
> Priority: Critical
> Fix For: 0.21.0
>
>
> HADOOP-2838 and HADOOP-5981 added support to make the TaskTracker's shell
> environment available to the tasks. This has two problems:
> 1. It makes the task tracker's environment part of the interface to the
> task, which is fairly brittle.
> 2. Security code typically only passes along whitelisted environment
> variables instead of everything to prevent accidental leakage from the
> administrator's account.
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