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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-15527) Sometimes daemons keep running even after "kill -9" from daemon-stop script
Date Mon, 11 Jun 2018 20:30:00 GMT
Vinod Kumar Vavilapalli created HADOOP-15527:
------------------------------------------------

             Summary: Sometimes daemons keep running even after "kill -9" from daemon-stop
script
                 Key: HADOOP-15527
                 URL: https://issues.apache.org/jira/browse/HADOOP-15527
             Project: Hadoop Common
          Issue Type: Bug
            Reporter: Vinod Kumar Vavilapalli
            Assignee: Vinod Kumar Vavilapalli


I'm seeing that sometimes daemons keep running for a little while even after "kill -9" from
daemon-stop scripts.

Debugging more, I see several instances of "ERROR: Unable to kill ${pid}".

Saw this specifically with ResourceManager & NodeManager -  {{yarn --daemon stop nodemanager}}.
Though it is possible that other daemons may run into this too.

Saw this on both Centos as well as Ubuntu.



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