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From "Jim Challenger (JIRA)" <...@uima.apache.org>
Subject [jira] [Closed] (UIMA-3707) DUCC SM should mark custom pingers so they're more easily reaped.
Date Mon, 05 May 2014 17:28:17 GMT

     [ https://issues.apache.org/jira/browse/UIMA-3707?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Jim Challenger closed UIMA-3707.

    Resolution: Fixed

> DUCC SM should mark custom pingers so they're more easily reaped.
> -----------------------------------------------------------------
>                 Key: UIMA-3707
>                 URL: https://issues.apache.org/jira/browse/UIMA-3707
>             Project: UIMA
>          Issue Type: Improvement
>          Components: DUCC
>    Affects Versions: 1.1.0-Ducc
>            Reporter: Jim Challenger
>            Assignee: Jim Challenger
>            Priority: Minor
>             Fix For: 1.1.0-Ducc
> If the Service Manager is killed-with-prejudice it can leave CUSTOM pingers alive and
orphaned (children of init).
> SM should clearly mark these processes so cleanup procedures can easily find them and
reap them as part of system startup.  The proposed mechanism is to set a -Dmarker as a no-op
system property to ServicePingMain that is easily discovered using ps.  Startup scripting
(and check_ducc) will look for these processes and kill them prior to starting SM.
> As well SM should implement a shutdown hook that attempts to stop these pingers if it
is stopped with only-a-little-prejudice.

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