On Mon, Feb 11, 2019 at 12:10 PM Götz Reinicke <goetz.reinicke@xxxxxxxxxxxxxxx> wrote: > as 12.2.11 is out for some days and no panic mails showed up on the list I was planing to update too. > > I know there are recommended orders in which to update/upgrade the cluster but I don’t know how rpm packages are handling restarting services after a yum update. E.g. when MDS and MONs are on the same server. This should be fine. The MDS only uses a new executable file if you explicitly restart it via systemd (or, the MDS fails and systemd restarts it). More info: when the MDS respawns in normal circumstances, it passes the /proc/self/exe file to execve. An intended side-effect is that the MDS will continue using the same executable file across execs. > And regarding an MDS Cluster I like to ask, if the upgrading instructions regarding only running one MDS during upgrading also applies for an update? > > http://docs.ceph.com/docs/mimic/cephfs/upgrading/ If you upgrade an MDS, it may update the compatibility bits in the Monitor's MDSMap. Other MDSs will abort when they see this change. The upgrade process intended to help you avoid seeing those errors so you don't inadvertently think something went wrong. If you don't mind seeing those errors and you're using 1 active MDS, then don't worry about it. Good luck! -- Patrick Donnelly _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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