[ceph-users] Re: MDS upgrade to Quincy
Hi Jimmy, On Fri, Apr 22, 2022 at 11:02 AM Jimmy Spets wrote: > > Does cephadm automatically reduce ranks to 1 or does that have to be done > manually? Automatically. -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
[ceph-users] Re: MDS upgrade to Quincy
Does cephadm automatically reduce ranks to 1 or does that have to be done manually? /Jimmy On Thu, Apr 21, 2022 at 3:30 PM Patrick Donnelly wrote: > On Wed, Apr 20, 2022 at 8:29 AM Chris Palmer > wrote: > > > > The Quincy release notes state that "MDS upgrades no longer require all > > standby MDS daemons to be stoped before upgrading a file systems's sole > > active MDS." but the "Upgrading non-cephadm clusters" instructions still > > include reducing ranks to 1, upgrading, then raising it again. > > The instructions are correct? For both cephadm and non-cephadm > clusters, it is necessary to reduce max_mds to 1 (ranks to 1) before > doing an upgrade. The change noted in the release is that standby MDS > (MDS not holding a rank) no longer need to be stopped / shutdown. > > > Does the new feature only apply once you have upgraded to Quincy, or do > > the MDS upgrade notes need adjusting now? (We're upgrading from Pacific). > > It's only necessary to upgrade the monitors for the feature to be > available (which is already the first thing you do when upgrading a > cluster). > > -- > Patrick Donnelly, Ph.D. > He / Him / His > Principal Software Engineer > Red Hat, Inc. > GPG: 19F28A586F808C2402351B93C3301A3E258DD79D > > ___ > ceph-users mailing list -- ceph-users@ceph.io > To unsubscribe send an email to ceph-users-le...@ceph.io > ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
[ceph-users] Re: MDS upgrade to Quincy
Hi Patrick Sorry, I misread it. Now it makes perfect sense. Sorry for the noise. Regards, Chris On 21/04/2022 14:28, Patrick Donnelly wrote: On Wed, Apr 20, 2022 at 8:29 AM Chris Palmer wrote: The Quincy release notes state that "MDS upgrades no longer require all standby MDS daemons to be stoped before upgrading a file systems's sole active MDS." but the "Upgrading non-cephadm clusters" instructions still include reducing ranks to 1, upgrading, then raising it again. The instructions are correct? For both cephadm and non-cephadm clusters, it is necessary to reduce max_mds to 1 (ranks to 1) before doing an upgrade. The change noted in the release is that standby MDS (MDS not holding a rank) no longer need to be stopped / shutdown. Does the new feature only apply once you have upgraded to Quincy, or do the MDS upgrade notes need adjusting now? (We're upgrading from Pacific). It's only necessary to upgrade the monitors for the feature to be available (which is already the first thing you do when upgrading a cluster). ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
[ceph-users] Re: MDS upgrade to Quincy
On Wed, Apr 20, 2022 at 8:29 AM Chris Palmer wrote: > > The Quincy release notes state that "MDS upgrades no longer require all > standby MDS daemons to be stoped before upgrading a file systems's sole > active MDS." but the "Upgrading non-cephadm clusters" instructions still > include reducing ranks to 1, upgrading, then raising it again. The instructions are correct? For both cephadm and non-cephadm clusters, it is necessary to reduce max_mds to 1 (ranks to 1) before doing an upgrade. The change noted in the release is that standby MDS (MDS not holding a rank) no longer need to be stopped / shutdown. > Does the new feature only apply once you have upgraded to Quincy, or do > the MDS upgrade notes need adjusting now? (We're upgrading from Pacific). It's only necessary to upgrade the monitors for the feature to be available (which is already the first thing you do when upgrading a cluster). -- Patrick Donnelly, Ph.D. He / Him / His Principal Software Engineer Red Hat, Inc. GPG: 19F28A586F808C2402351B93C3301A3E258DD79D ___ ceph-users mailing list -- ceph-users@ceph.io To unsubscribe send an email to ceph-users-le...@ceph.io
