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From "Billie Rinaldi (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7677) Docker image cannot set HADOOP_CONF_DIR
Date Fri, 02 Feb 2018 14:07:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16350368#comment-16350368
] 

Billie Rinaldi commented on YARN-7677:
--------------------------------------

That sounds like a good approach, NM vars followed by preserving the order of the user variables.
I'd prefer if the NM vars included all the ones defined by the NM (see ContainerLaunch.sanitizeEnv),
not just the whitelist vars.

> Docker image cannot set HADOOP_CONF_DIR
> ---------------------------------------
>
>                 Key: YARN-7677
>                 URL: https://issues.apache.org/jira/browse/YARN-7677
>             Project: Hadoop YARN
>          Issue Type: Bug
>    Affects Versions: 3.0.0
>            Reporter: Eric Badger
>            Assignee: Jim Brennan
>            Priority: Major
>         Attachments: YARN-7677.001.patch, YARN-7677.002.patch
>
>
> Currently, {{HADOOP_CONF_DIR}} is being put into the task environment whether it's set
by the user or not. It completely bypasses the whitelist and so there is no way for a task
to not have {{HADOOP_CONF_DIR}} set. This causes problems in the Docker use case where Docker
containers will set up their own environment and have their own {{HADOOP_CONF_DIR}} preset
in the image itself. 



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