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Posted to mapreduce-issues@hadoop.apache.org by "Jason Lowe (JIRA)" <ji...@apache.org> on 2015/09/24 17:18:04 UTC
[jira] [Moved] (MAPREDUCE-6491) Environment variable handling
assumes values should be appended
[ https://issues.apache.org/jira/browse/MAPREDUCE-6491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Jason Lowe moved YARN-2369 to MAPREDUCE-6491:
---------------------------------------------
Affects Version/s: (was: 2.2.0)
2.2.0
Target Version/s: 2.8.0 (was: 2.8.0)
Key: MAPREDUCE-6491 (was: YARN-2369)
Project: Hadoop Map/Reduce (was: Hadoop YARN)
> Environment variable handling assumes values should be appended
> ---------------------------------------------------------------
>
> Key: MAPREDUCE-6491
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6491
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Affects Versions: 2.2.0
> Reporter: Jason Lowe
> Assignee: Dustin Cote
> Attachments: YARN-2369-1.patch, YARN-2369-2.patch, YARN-2369-3.patch, YARN-2369-4.patch, YARN-2369-5.patch, YARN-2369-6.patch, YARN-2369-7.patch
>
>
> When processing environment variables for a container context the code assumes that the value should be appended to any pre-existing value in the environment. This may be desired behavior for handling path-like environment variables such as PATH, LD_LIBRARY_PATH, CLASSPATH, etc. but it is a non-intuitive and harmful way to handle any variable that does not have path-like semantics.
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