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https://issues.apache.org/jira/browse/KARAF-6963?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17286741#comment-17286741
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ASF GitHub Bot commented on KARAF-6963:
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mdonkers commented on pull request #1269:
URL: https://github.com/apache/karaf/pull/1269#issuecomment-781654902
*Bump*.
I haven't seen any updates. I think the build error is not correct or at
least not related to this change, but cannot re-trigger.
Would be nice if I could get some feedback, to move this forward.
Many thanks.
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> Stopping Karaf daemon invokes kill -9, resulting in failed systemd service
> --------------------------------------------------------------------------
>
> Key: KARAF-6963
> URL: https://issues.apache.org/jira/browse/KARAF-6963
> Project: Karaf
> Issue Type: Bug
> Components: karaf
> Affects Versions: 4.2.4
> Environment: Linux + systemd
> Reporter: Miel Donkers
> Assignee: Jean-Baptiste Onofré
> Priority: Minor
>
> Karaf supplies an example systemd file:
> [https://github.com/apache/karaf/blob/master/assemblies/features/base/src/main/resources/resources/bin/contrib/karaf-service-template.systemd]
> For our solution we use a similar systemd service file. However we noticed
> that when stopping the service, it's always left in a "failed" state:
> {code:java}
> root@vagrant:/opt/instana/agent# systemctl stop instana-agent
> root@vagrant:/opt/instana/agent# systemctl status instana-agent
> ● instana-agent.service - "Instana(tm) agent."
> Loaded: loaded (/lib/systemd/system/instana-agent.service; enabled; vendor
> preset: enabled)
> Active: failed (Result: signal) since Tue 2020-12-15 20:29:44 UTC; 2s ago
> Process: 5461 ExecStop=/opt/instana/agent/bin/karaf stop (code=exited,
> status=0/SUCCESS)
> Process: 5371 ExecStart=/opt/instana/agent/bin/karaf daemon (code=killed,
> signal=KILL)
> Main PID: 5371 (code=killed, signal=KILL)
> {code}
> This is not due to the way the systemd service is being stopped, but rather
> due to how the "stop" command is handled internally. Following the execution
> path from the "karaf" script, this eventually leads to
> [https://github.com/apache/karaf/blob/bb175f9c613921a20e017c343e6b978a3e80c80e/util/src/main/java/org/apache/karaf/jpm/impl/ProcessImpl.java#L84]
> {code:java}
> ret = ScriptUtils.executeProcess(new java.lang.ProcessBuilder("kill", "-9",
> Integer.toString(pid)));
> {code}
> Instead of doing a hard `kill -9`, it would be much nicer to first execute a
> 'kill', followed by checking if the process nicely shuts down and if not
> executing the 'kill -9'.
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