On Thu, Apr 29, 2021 at 10:58:15AM +0200, Mark Schouten wrote: > We've done our fair share of Ceph cluster upgrades since Hammer, and > have not seen much problems with them. I'm now at the point that I have > to upgrade a rather large cluster running Luminous and I would like to > hear from other users if they have experiences with issues I can expect > so that I can anticipate on them beforehand. Thanks for the replies! Just one question though. Step one for me was to lower max_mds to one. Documentation seems to suggest that the cluster automagically moves > 1 mds'es to a standby state. However, nothing really happens. root@osdnode01:~# ceph fs get dadup_pmrb | grep max_mds max_mds 1 I still have three active ranks. Do I simply restart two of the MDS'es and force max_mds to one daemon, or is there a nicer way to move two mds'es from active to standby? Thanks again! -- Mark Schouten | Tuxis B.V. KvK: 74698818 | http://www.tuxis.nl/ T: +31 318 200208 | info@xxxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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