[jira] [Created] (YARN-7916) Remove call to docker logs on failure in container-executor

["Shane Kumpf (JIRA)" <ji...@apache.org>]

Shane Kumpf created YARN-7916:
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             Summary: Remove call to docker logs on failure in container-executor
                 Key: YARN-7916
                 URL: https://issues.apache.org/jira/browse/YARN-7916
             Project: Hadoop YARN
          Issue Type: Sub-task
            Reporter: Shane Kumpf


If a Docker container fails with a non-zero exit code, container-executor attempts to run a {{docker logs --tail=250 container_name}} to provide more details on why the container failed. While the idea is good, the current implementation will fail for most containers as they are leveraging a launch script whose output will be redirected to a file. The {{--tail}} option throws an error if no log output is available for the container, resulting in the docker logs command returning rc=1 in most cases.

I propose we remove this code from container-executor. Alternative approaches to handle logging can be explored as part of supporting an image's entrypoint.



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