Hi,
do both nodes have the MON and OSD roles? If there's only one MON and
you shut it down the cluster is down, of course. If the maps don't
change too quickly it's possible that your clients still communicate
with their respective OSDs so they don't immediately notice failed
MONs. This has been asked a couple of times on this list, search the
archive for more details.
If both nodes are MONs you might wanna check if all the ceph.conf
files within the containers contain both MONs, but you'll still need a
tiebreaker to maintain a quorum which is impossible with only two MONs.
The same goes for OSDs: assuming both your nodes are also OSD nodes
you probably have a pool size of 2 which will be a problem, this has
been discussed on this list many times as well. So your cluster is not
really HA with only 2 nodes.
Zitat von Murilo Morais <murilo@xxxxxxxxxxxxxx>:
Hello guys.
I have a question regarding HA.
I set up two hosts with cephadm, created the pools and set up an NFS,
everything working so far. I turned off the second Host and the first one
continued to work without problems, but if I turn off the first, the second
is totally irresponsible. What could be causing this?
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