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https://issues.apache.org/jira/browse/MAPREDUCE-7069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16433948#comment-16433948
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Jim Brennan commented on MAPREDUCE-7069:
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[~jlowe], [~shaneku...@gmail.com], thanks for the reviews! I am working to
update the documentation and I'll put up another patch soon.
{quote}Looking at the docs generated at
[http://hadoop.apache.org/docs/current/hadoop-mapreduce-client/hadoop-mapreduce-client-core/mapred-default.xml]
I'm wondering if it would be more useful to add the description for the .[var]
form of the properties to the base property instead of having separate,
commented-out properties. Users probably won't ever notice the commented-out
text in that file, especially since it's buried in a .jar when deployed, but
many would notice the docs generated for properties that aren't commented out.
Thoughts?
{quote}
This is what I originally started to do, but switched to the commented out
option because it felt like the descriptions were too cumbersome. But your
point is well taken. I'll take another stab at combining them. I don't see any
precedent in this file for using formatting tags inside the descriptions (<br>,
<p>,...) - do you know if that is allowed?
> 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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