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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-7644) NM gets backed up deleting docker containers
Date Tue, 12 Dec 2017 19:05:00 GMT
Eric Badger created YARN-7644:

             Summary: NM gets backed up deleting docker containers
                 Key: YARN-7644
                 URL: https://issues.apache.org/jira/browse/YARN-7644
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Eric Badger
            Assignee: Eric Badger

We are sending a {{docker stop}} to the docker container with a timeout of 10 seconds when
we shut down a container. If the container does not stop after 10 seconds then we force kill
it. However, the {{docker stop}} command is a blocking call. So in cases where lots of containers
don't go down with the initial SIGTERM, we have to wait 10+ seconds for the {{docker stop}}
to return. This ties up the ContainerLaunch handler and so these kill events back up. It also
appears to be backing up new container launches as well. 

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