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https://issues.apache.org/jira/browse/AMBARI-8940?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Onischuk resolved AMBARI-8940.
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Resolution: Fixed
Committed to trunk
> Ambari overrides user/groups settings configured by cluster admins
> ------------------------------------------------------------------
>
> Key: AMBARI-8940
> URL: https://issues.apache.org/jira/browse/AMBARI-8940
> Project: Ambari
> Issue Type: Bug
> Reporter: Andrew Onischuk
> Assignee: Andrew Onischuk
> Fix For: 2.1.0
>
>
> Seen at Altiscale who were trying to use YARN with docker on an Ambari
> deployed cluster.
> Docker requires users to be in the "docker" group to be able to launch docker
> containers. As a result, the user "yarn", which Ambari creates and adds to the
> "hadoop" group, was changed to belong to both the "docker" and "hadoop"
> groups.
> However, after making this change on all nodes, we noticed that the the yarn
> user was being removed from the docker group.
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