[jira] [Created] (YARN-8744) To stop non-privileged containers docker kill is used instead of sending the signal directly

["Chandni Singh (JIRA)" <ji...@apache.org>]

Chandni Singh created YARN-8744:
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             Summary: To stop non-privileged containers docker kill is used instead of sending the signal directly
                 Key: YARN-8744
                 URL: https://issues.apache.org/jira/browse/YARN-8744
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Chandni Singh
            Assignee: Chandni Singh


With YARN-8706, stopping docker containers was achieved by 
1. parsing the user specified {{STOPSIGNAL}} via docker inspect
2. executing {{docker kill --signal=<STOPSIGNAL>}}

Quoting [~ebadger]
{quote}
Additionally, for non-privileged containers, we don't need to call docker kill. Instead, we can follow the code in handleContainerKill() and send the signal directly. I think this code could probably be combined, since at this point handleContainerKill() and handleContainerStop() will be doing the same thing. The only difference is that the STOPSIGNAL will be used for the stop.
{quote}

To achieve the above, we need native code that accepts the name of the signal rather than the value (number) of the signal. 




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