Hi,
On 26.01.23 12:46, Jens Galsgaard wrote:
Setup is:
3 hosts with each 12 disks (osd/mon)
3 vm's with mon/mds/mgr
The vm's are unavailable at the moment and one of the hosts is online with osd/mon
running.
You have only one out of six MONs running. This MON is unable to form a
quorum.
Best would be to start the other MONs so that you have at least 4
running. They could form a quorum and then the cluster will respond again.
If that is not possible and you want to recover from a catastrophic
failure you need to manually edit the MON map (with monmaptool) and
remove all but the running MON from it. Then this MON will only see
itself as active in the cluster and form the quorum.
https://docs.ceph.com/en/quincy/rados/troubleshooting/troubleshooting-mon
https://docs.ceph.com/en/quincy/rados/operations/add-or-rm-mons/#removing-m…
Regards
--
Robert Sander
Heinlein Consulting GmbH
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