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Doesn't that indicate that the standby-replay server is out of date, and would need to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(a)PerformAir.com
www.PerformAir.com
-----Original Message-----
From: Marc Roos [mailto:M.Roos@f1-outsourcing.eu]
Sent: Friday, February 28, 2020 8:19 AM
To: ceph-users; Dominic Hilsbos
Subject: RE: [ceph-users] 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(a)f1-outsourcing.eu
-----Original Message-----
From: DHilsbos(a)performair.com [mailto:DHilsbos@performair.com]
Sent: vrijdag 28 februari 2020 16:17
To: ceph-users(a)ceph.io
Subject: [ceph-users] 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(a)PerformAir.com
www.PerformAir.com
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