Thanks. I’m now trying to figure out how to get Proxmox to pass the “-o mds_namespace=otherfs” option to its mounting of the filesystem, but that’s a bit out of scope for this list (though if anyone has done this please let me know!). > On Mar 31, 2020, at 2:15 PM, Nathan Fish <lordcirth@xxxxxxxxx> wrote: > > Yes, standby (as opposed to standby-replay) MDS' form a shared pool > from which the mons will promote an MDS to the required role. > > On Tue, Mar 31, 2020 at 12:52 PM Jarett DeAngelis <jarett@xxxxxxxxxxxx> wrote: >> >> So, for the record, this doesn’t appears to work in Nautilus. >> >> >> >> Does this mean that I should just count on my standby MDS to “step in” when a new FS is created? >> >>> On Mar 31, 2020, at 3:19 AM, Eugen Block <eblock@xxxxxx> wrote: >>> >>>> This has changed in Octopus. The above config variables are removed. >>>> Instead, follow this procedure.: >>>> >>>> https://docs.ceph.com/docs/octopus/cephfs/standby/#configuring-mds-file-system-affinity >>> >>> Thanks for the clarification, IIRC I had troubles applying the mds_standby settings in Nautilus already, but I haven't verified yet so I didn't mention that in my response. I'll take another look at it. >>> >>> >>> Zitat von Patrick Donnelly <pdonnell@xxxxxxxxxx>: >>> >>>> On Mon, Mar 30, 2020 at 11:57 PM Eugen Block <eblock@xxxxxx> wrote: >>>>> For the standby daemon you have to be aware of this: >>>>> >>>>>> By default, if none of these settings are used, all MDS daemons >>>>>> which do not hold a rank will >>>>>> be used as 'standbys' for any rank. >>>>>> [...] >>>>>> When a daemon has entered the standby replay state, it will only be >>>>>> used as a standby for >>>>>> the rank that it is following. If another rank fails, this standby >>>>>> replay daemon will not be >>>>>> used as a replacement, even if no other standbys are available. >>>>> >>>>> Some of the mentioned settings are for example: >>>>> >>>>> mds_standby_for_rank >>>>> mds_standby_for_name >>>>> mds_standby_for_fscid >>>>> >>>>> The easiest way is to have one standby daemon per CephFS and let them >>>>> handle the failover. >>>> >>>> This has changed in Octopus. The above config variables are removed. >>>> Instead, follow this procedure.: >>>> >>>> https://docs.ceph.com/docs/octopus/cephfs/standby/#configuring-mds-file-system-affinity >>>> >>>> -- >>>> Patrick Donnelly, Ph.D. >>>> He / Him / His >>>> Senior Software Engineer >>>> Red Hat Sunnyvale, CA >>>> GPG: 19F28A586F808C2402351B93C3301A3E258DD79D >>> >>> >>> _______________________________________________ >>> 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 _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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