>>> Dmitri Maziuk <dmitri.maz...@gmail.com> schrieb am 17.10.2016 um 16:51 in Nachricht <0d370bc7-c74e-4250-5848-b9c7de941...@gmail.com>: > On 2016-10-17 02:12, Ulrich Windl wrote: > >> Have you tried a proper variant of "lsof" before? So maybe you know > which process might block the device. I also think if you have LVM on > top of DRBD, you must deactivate the VG before trying to unmount. > > No LVM here: AFAIMC these days it's another solution in search of a problem. > > Next time I'll try to remember to do it from console root login in the > node, maybe I'll see whet lsof has to say then. > > I have a feeling it's not happening on plain kernel upgrade, only when > kmod-drbd is updated, but I don't have enough data points yet for > anything more than a feeling. I have a couple of haresources drbd+nfs
Ah, that rings a bell: Sometimes when kernel modules are updated, some scripts think they must unload modues, then reload them. With a new kernel not being bootet yet, the modules on disk don't fit the running kernel. Maybe your problem is like this? > clusters that don't do this, but neither of them is running dovecot... > could be systemd "RA" not stopping dovecot properly, too. > > Dima > > > _______________________________________________ > Users mailing list: Users@clusterlabs.org > http://clusterlabs.org/mailman/listinfo/users > > Project Home: http://www.clusterlabs.org > Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf > Bugs: http://bugs.clusterlabs.org _______________________________________________ Users mailing list: Users@clusterlabs.org http://clusterlabs.org/mailman/listinfo/users Project Home: http://www.clusterlabs.org Getting started: http://www.clusterlabs.org/doc/Cluster_from_Scratch.pdf Bugs: http://bugs.clusterlabs.org