drbd-graceful-shutdown.service interfering with Pacemaker

[Akemi Yagi]

Thanks for the confirmation. Great to know it worked.

On Thu, Jan 30, 2025 at 12:56 PM syslog <gestione.sistemi at meteoam.it> wrote:
>
> 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
> > <lars.ellenberg at linbit.com> 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