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From "Suma Shivaprasad (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-8027) Setting hostname of docker container breaks for --net=host in docker 1.13
Date Wed, 14 Mar 2018 20:52:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-8027?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16399388#comment-16399388
] 

Suma Shivaprasad commented on YARN-8027:
----------------------------------------

[~Jim_Brennan] Yes, +1 for current patch.  Thanks

> Setting hostname of docker container breaks for --net=host in docker 1.13
> -------------------------------------------------------------------------
>
>                 Key: YARN-8027
>                 URL: https://issues.apache.org/jira/browse/YARN-8027
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: yarn
>    Affects Versions: 3.0.0
>            Reporter: Jim Brennan
>            Assignee: Jim Brennan
>            Priority: Major
>         Attachments: YARN-8027.001.patch
>
>
> In DockerLinuxContainerRuntime:launchContainer, we are adding the --hostname argument
to the docker run command to set the hostname in the container to something like:  ctr-e84-1520889172376-0001-01-000001.
> This does not work when combined with the --net=host command line option in Docker 1.13.1.
 It causes multiple failures when the client tries to resolve the hostname and it fails.
> We haven't seen this before because we were using docker 1.12.6 which seems to ignore
--hostname when you are using --net=host.



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