[jira] [Closed] (UIMA-5611) UIMA-DUCC: Agent fails to kill a child process sometimes

["Jerry Cwiklik (JIRA)" <de...@uima.apache.org>]

     [ https://issues.apache.org/jira/browse/UIMA-5611?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jerry Cwiklik closed UIMA-5611.
-------------------------------
    Resolution: Fixed

Added detector to find defunct process. Such process is marked as Stopped and reason set to 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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