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Posted to yarn-dev@hadoop.apache.org by "Jim Brennan (JIRA)" <ji...@apache.org> on 2018/03/14 18:02:00 UTC

[jira] [Created] (YARN-8029) YARN_CONTAINER_RUNTIME_DOCKER_MOUNTS should not use commas as separators

Jim Brennan created YARN-8029:
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             Summary: 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


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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