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From "Jim Brennan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8029) YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS should not use commas as separators
Date Tue, 20 Mar 2018 16:33:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16406628#comment-16406628
] 

Jim Brennan commented on YARN-8029:
-----------------------------------

I put up a new patch for YARN-6830, to get the discussion going again.

> YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS should not use commas as separators
> ------------------------------------------------------------------------
>
>                 Key: YARN-8029
>                 URL: https://issues.apache.org/jira/browse/YARN-8029
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 3.0.0
>            Reporter: Jim Brennan
>            Priority: Major
>
> The following docker-related environment variables specify a comma-separated list of
mounts:
> YARN_CONTAINER_RUNTIME_DOCKER_LOCAL_RESOURCE_MOUNTS
> YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS
> This is a problem because hadoop -Dmapreduce.map.env and related options use  comma as
a delimiter.   So if I put more than one mount in YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS the
comma in the variable will be treated as a delimiter for the hadoop command line option and
all but the first mount will be ignored.



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