Eric Badger created YARN-7644:
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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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