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From "Jason Lowe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-7069) Add ability to specify user environment variables individually
Date Wed, 11 Apr 2018 14:47:00 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-7069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16434021#comment-16434021
] 

Jason Lowe commented on MAPREDUCE-7069:
---------------------------------------

Given this is XML and not HTML I think we should avoid the use of HTML tags for now.  Those
tags will make it harder to read if the consumer is not viewing it with an HTML viewer.  For
the mapred-default.xml descriptions I think we just need to mention that variables can also
be specified as separate properties and give a simple example demonstrating the syntax.

> Add ability to specify user environment variables individually
> --------------------------------------------------------------
>
>                 Key: MAPREDUCE-7069
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-7069
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Jim Brennan
>            Assignee: Jim Brennan
>            Priority: Major
>         Attachments: MAPREDUCE-7069.001.patch, MAPREDUCE-7069.002.patch, MAPREDUCE-7069.003.patch,
MAPREDUCE-7069.004.patch, MAPREDUCE-7069.005.patch, MAPREDUCE-7069.006.patch
>
>
> As reported in YARN-6830, it is currently not possible to specify an environment variable
that contains commas via {{mapreduce.map.env}}, mapreduce.reduce.env, or {{mapreduce.admin.user.env}}.
> To address this, [~aw] proposed in [YARN-6830] that we add the ability to specify environment
variables individually:
> {quote}e.g, mapreduce.map.env.[foo]=bar gets turned into foo=bar
> {quote}



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