Hello Brian,
as long as you have at least one working MON, it's kind of easy to recover.
Shutdown all MONs, modify the MONMAP by hand, leaving just one of the
working MONs and then start it up. After that, redeploy the other mons to
have your quorum and redundancy back again.
You find more details and commands at
https://docs.ceph.com/en/latest/rados/troubleshooting/troubleshooting-mon/#…
.
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Am Sa., 10. Okt. 2020 um 07:16 Uhr schrieb Brian Topping <
brian.topping(a)gmail.com>gt;:
Hello experts,
I have accidentally created a situation where the only monitor in a
cluster has been moved to a new node without it’s /var/lib/ceph contents.
Not realizing what I had done, I decommissioned the original node, but
still have the contents of it’s /var/lib/ceph.
Can I shut down the monitor running on the new node, copy monitor data
from the original node to the new node and restart the monitor? Or is there
information in the monitor database that is tied to the original node? If
that’s the case, I suspect I need to somehow recommission the original node.
Thanks for any feedback on this situation!
Brian
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