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From "Jim Brennan (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-8027) Setting hostname of docker container breaks for --net=host in docker 1.13
Date Mon, 12 Mar 2018 21:57:00 GMT
Jim Brennan created YARN-8027:
---------------------------------

             Summary: 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


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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