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From "Jim Brennan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7677) Docker image cannot set HADOOP_CONF_DIR
Date Thu, 01 Feb 2018 19:53:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16349168#comment-16349168
] 

Jim Brennan commented on YARN-7677:
-----------------------------------

Agreed - given that we are just processing the hash map in order, it seems like we've just
been getting lucky that the variables on which the classpath depends are coming before it
in the launch_container.sh script.


> 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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