Hi Eugen,
Thanks for your confirmation, it works following your steps. In
addition, I had to restart the third mds service in order to take into
account the change from standby-replay to standby.
Regards,
Hervé
On 15/04/2020 11:01, Eugen Block wrote:
Hi,
I didn't find any clear procedure regarding this operation, and my
question is about if I can add an active rank directly or if I have
to unset the standby-replay status first ?
I was thinking of the second option, that is:
$ sudo ceph fs set /my_fs/ allow_standby_replay false
$ sudo ceph fs set /my_fs/ max_mds 2
Is it the correct way ?
both ways should work. You can first enable the second active MDS with
$ sudo ceph fs set /my_fs/ max_mds 2
and afterwards disable standby-replay or the other way around. I don't
think there's "the one correct" way.
Regards,
Eugen
Zitat von Herve Ballans <herve.ball...@ias.u-psud.fr>:
Hello to all confined people (and the others too) !
On one of my Ceph cluster (Nautilus 14.2.3), I previously set up 3
MDS daemons in active/standy-replay/standby configuration.
For design reasons, I would like to replace this configuration by an
active/active/standby one.
It means replace the standby-replay daemon by an active one.
I didn't find any clear procedure regarding this operation, and my
question is about if I can add an active rank directly or if I have
to unset the standby-replay status first ?
I was thinking of the second option, that is:
$ sudo ceph fs set /my_fs/ allow_standby_replay false
$ sudo ceph fs set /my_fs/ max_mds 2
Is it the correct way ?
Thanks in advance,
Hervé
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