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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-15527) Sometimes daemons keep running even after "kill -9" from daemon-stop script
Date Wed, 13 Jun 2018 00:54:00 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-15527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16510472#comment-16510472
] 

Hudson commented on HADOOP-15527:
---------------------------------

FAILURE: Integrated in Jenkins build Hadoop-trunk-Commit #14416 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/14416/])
HADOOP-15527.  Improve delay check for stopping processes.               (eyang: rev 108da85320d65e37fe835de65866b818e5420587)
* (edit) hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh
* (edit) hadoop-common-project/hadoop-common/src/test/scripts/hadoop_stop_daemon.bats


> 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
>            Priority: Major
>         Attachments: HADOOP-15527.1.txt, HADOOP-15527.2.txt, HADOOP-15527.txt
>
>
> 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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