Marc; If I understand that command correctly, it's tells MDS 'c' to disappear, the same as rebooting would, right? Let me just clarify something then... When I run ceph fs dump I get the following: 110248: [v2:10.2.80.10:6800/1470324937,v1:10.2.80.10:6801/1470324937] 'S700041' mds.0.29 up:active seq 997315 120758: [v2:10.2.80.11:6800/2691008522,v1:10.2.80.11:6801/2691008522] 'S700042' mds.0.0 up:standby-replay seq 2 Doesn't that indicate that the standby-replay server is out of date, and would need to pause the FS to replay? Is there something wrong in my setup, or is the above expected? Thank you, Dominic L. Hilsbos, MBA Director - Information Technology Perform Air International Inc. DHilsbos@xxxxxxxxxxxxxx www.PerformAir.com -----Original Message----- From: Marc Roos [mailto:M.Roos@xxxxxxxxxxxxxxxxx] Sent: Friday, February 28, 2020 8:19 AM To: ceph-users; Dominic Hilsbos Subject: RE: Stately MDS Transitions ceph mds fail c? - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -. F1 Outsourcing Development Sp. z o.o. Poland t: +48 (0)124466845 f: +48 (0)124466843 e: marc@xxxxxxxxxxxxxxxxx -----Original Message----- From: DHilsbos@xxxxxxxxxxxxxx [mailto:DHilsbos@xxxxxxxxxxxxxx] Sent: vrijdag 28 februari 2020 16:17 To: ceph-users@xxxxxxx Subject: Stately MDS Transitions All; We just started really fiddling with CephFS on our production cluster (Nautilus - 14.2.5 / 14.2.6), and I have a question... Is there a command / set of commands that transitions a standby-replay MDS server to the active role, while swapping the active MDS to standby-replay, or even just standby? I'm looking for a way to seamlessly, and without down time, prepare the active MDS to go offline (reboot) as part of planned /periodic maintenance. Thank you, Dominic L. Hilsbos, MBA Director - Information Technology Perform Air International Inc. DHilsbos@xxxxxxxxxxxxxx www.PerformAir.com _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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