Re: drbd-graceful-shutdown.service interfering with Pacemaker

Hello.

I just installed it and it seems to resolve this issue.

Il 28/01/2025 18:40, Akemi Yagi ha scritto:
> On Mon, Jan 27, 2025 at 4:00 AM Lars Ellenberg
> <[email protected]> wrote:
>> On Thu, Jan 23, 2025 at 12:56:11PM -0800, Reid Wahl wrote:
>>> Hi, we at Red Hat received a user bug report today involving drbd and Pacemaker.
>>>
>>> When shutting down the system (e.g., with `shutdown -r now`),
>>> Pacemaker hangs when trying to stop the cluster resource that manages
>>> drbd. If the user manually stops Pacemaker before shutdown (e.g.,
>>> `systemctl stop pacemaker`), the problem does not occur.
>> So apparently we forgot to add a "Before=pacemaker.service"
>> or even better "Before=resource-agents-deps.target"
>> to the graceful shutdown service.
>>
>> If you don't need it in your environment, you can still "mask" it.
>>
>> I have some changes queued up for our systemd thingies,
>> I'll work that in as well.
>>
>> BTW, stopping pacemaker explicitly first should be a generic recommendation
>> and has proven useful in many cases.
>> Because all sorts of missing dependencies for all sorts of things, which,
>> because of the racy nature, only "sometimes" are stopped "too early".
>>
>> And because, whenever there is a problem during shutdown of pacemaker,
>> for whatever reason, and you already initiated the system shutdown,
>> you have very limited means to "help it along", and sometimes need to
>> wait out all of the timeouts and escalation timeouts.
>>
>> Thank you for the report.
>>
>>      Lars
> Hi,
>
> If you run RHEL (or its rebuild), you can get the drbd-utils package
> that has the proposed fix. It is currently in the elrepo-testing
> repository.
>
> EL8:
> https://elrepo.org/linux/testing/el8/x86_64/RPMS/drbd90-utils-9.30.0-2.el8.elrepo.x86_64.rpm
>
> EL9:
> https://elrepo.org/linux/testing/el9/x86_64/RPMS/drbd9x-utils-9.30.0-2.el9.elrepo.x86_64.rpm
>
> Akemi