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https://issues.apache.org/jira/browse/YARN-6434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16436088#comment-16436088
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Jim Brennan commented on YARN-6434:
-----------------------------------
[~Jaeboo], please close this if you agree that it is resolved by
[MAPREDUCE-7069].
> When setting environment variables, can't use comma for a list of value in
> key = value pairs.
> ---------------------------------------------------------------------------------------------
>
> Key: YARN-6434
> URL: https://issues.apache.org/jira/browse/YARN-6434
> Project: Hadoop YARN
> Issue Type: Improvement
> Reporter: Jaeboo Jeong
> Priority: Major
> Attachments: YARN-6434-trunk.001.patch, YARN-6434.001.patch
>
>
> We can set environment variables using yarn.app.mapreduce.am.env,
> mapreduce.map.env, mapreduce.reduce.env.
> There is no problem if we use key=value pairs like X=Y, X=$Y.
> However If we want to set key=a list of value pair(e.g. X=Y,Z), we can’t.
> This is related to YARN-4595.
> The attached patch is based on YARN-3768.
> We can set environment variables like below.
> {code}
> mapreduce.map.env="YARN_CONTAINER_RUNTIME_TYPE=docker,YARN_CONTAINER_RUNTIME_DOCKER_IMAGE=hadoop-docker,YARN_CONTAINER_RUNTIME_DOCKER_LOCAL_RESOURCE_MOUNTS=\"/dir1:/targetdir1,/dir2:/targetdir2\""
> {code}
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