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https://issues.apache.org/jira/browse/YARN-7677?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16380382#comment-16380382
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Jim Brennan commented on YARN-7677:
-----------------------------------
[~eyang] the user cannot override the variables that are explicitly set by NM
(NM_HOST, NM_PORT, etc...). The NM explicitly sets these variables,
overwriting any value the user may have set.
That said, I am leaning towards the category order as well. I will put up a
patch using the category ordering (basically the same as the previous patch for
this Jira, but updated to integrate with YARN-5714
Thanks!
> 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,
> YARN-7677.003.patch, YARN-7677.004.patch, YARN-7677.005.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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