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https://issues.apache.org/jira/browse/UIMA-5611?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16200450#comment-16200450
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Jerry Cwiklik edited comment on UIMA-5611 at 10/12/17 12:56 PM:
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An agent should check status of a process after kill -9 is issued to detect if
its defunct. It should exec a ps command and parse the output to test for
defunct bit. An Agent should mark defunct process as Stopped and add
Reason=Defunct
was (Author: cwiklik):
An agent should check status of a process after kill -9 is issued to detect if
its defunct. It should exec a ps command and parse the output to test for
defunct bit. If one is detected, the agent should mark such process as Stopped
and add Reason=Defunct.
> UIMA-DUCC: Agent fails to kill a child process sometimes
> --------------------------------------------------------
>
> Key: UIMA-5611
> URL: https://issues.apache.org/jira/browse/UIMA-5611
> Project: UIMA
> Issue Type: Bug
> Components: DUCC
> Reporter: Jerry Cwiklik
> Assignee: Jerry Cwiklik
> Fix For: 2.2.2-Ducc
>
>
> Improve detection of child processes which fail to stop after kill -9 was
> sent. If kill -9 is sent by an agent while a child process is experiencing an
> OOM, the signal is not acted upon and the process remains running.
> An agent should retry kill -9 on regular basis (configured in
> ducc.properties) if a process is still standing after kill -9.
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