[ClusterLabs] Systemd resource started on node after reboot before cluster is stable ?

[Adam Cecile]

On 2/15/23 12:16, Andrei Borzenkov wrote:
> On Wed, Feb 15, 2023 at 12:49 PM Adam Cecile<acecile at le-vert.net>  wrote:
>> Hello,
>>
>> Just had some issue with unexpected server behavior after reboot. This node was powered off, so cluster was running fine with this tomcat9 resource running on a different machine.
>>
>> After powering on this node again, it briefly started tomcat before joining the cluster and decided to stop it again. I'm not sure why.
>>
>>
>> Here is the systemctl status tomcat9 on this host:
>>
>> tomcat9.service - Apache Tomcat 9 Web Application Server
>>       Loaded: loaded (/lib/systemd/system/tomcat9.service; disabled; vendor preset: enabled)
>>      Drop-In: /etc/systemd/system/tomcat9.service.d
>>               └─override.conf
>>       Active: inactive (dead)
>>         Docs:https://tomcat.apache.org/tomcat-9.0-doc/index.html
>>
>> Feb 15 09:43:27 server tomcat9[1398]: Starting service [Catalina]
>> Feb 15 09:43:27 server tomcat9[1398]: Starting Servlet engine: [Apache Tomcat/9.0.43 (Debian)]
>> Feb 15 09:43:27 server tomcat9[1398]: [...]
>> Feb 15 09:43:29 server systemd[1]: Stopping Apache Tomcat 9 Web Application Server...
>> Feb 15 09:43:29 server systemd[1]: tomcat9.service: Succeeded.
>> Feb 15 09:43:29 server systemd[1]: Stopped Apache Tomcat 9 Web Application Server.
>> Feb 15 09:43:29 server systemd[1]: tomcat9.service: Consumed 8.017s CPU time.
>>
>> You can see it is disabled and should NOT be started
> "Disabled" in systemd just means that links in [Install] section are
> not present. This unit may be started by explicit request, or by
> explicit dependency like Wants or Requires in another unit. Check
> "systemctl show -p WantedBy -p RequiredBy tomcat9.service".

Sadly it is configured as it should:

RequiredBy=
WantedBy=
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