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From "Eric Badger (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-7644) NM gets backed up deleting docker containers
Date Tue, 02 Oct 2018 21:27:00 GMT

    [ https://issues.apache.org/jira/browse/YARN-7644?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16636142#comment-16636142
] 

Eric Badger commented on YARN-7644:
-----------------------------------

{quote}
mvninstall fails with Failed to execute goal org.apache.maven.plugins:maven-enforcer-plugin:3.0.0-M1:enforce
. 
{quote}
Same for me. I saw something on the mailing list as well. This seems to be a problem that
was brought forth when branch 3-2 was cut

> 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
>          Components: nodemanager
>            Reporter: Eric Badger
>            Assignee: Chandni Singh
>            Priority: Major
>              Labels: Docker
>         Attachments: YARN-7644.001.patch
>
>
> 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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