Hi all,
We have a two-cluster-node (with a third "monitoring-only" node). Over
the last months, everything ran *perfectly* smooth. Today, I did an
Ubuntu "apt-get upgrade" on one of the two servers. Among others, the
ceph packages were upgraded from 12.2.1 to 12.2.2. A minor release
update, one might think. But, to my surprise, after restarting the
services, Ceph is now in degraded state :-( (see below). Only the first
node - which ist still on 12.2.1 - seems to be running. I did a bit of
research and found this:
https://ceph.com/community/new-luminous-pg-overdose-protection/
I did set "mon_max_pg_per_osd = 300" to no avail. Don't know if this is
the problem at all.
Looking at the status it seems we have 264 pgs, right? When I enter
"ceph osd df" (which I found on another website claiming it should print
the number of PGs per OSD), it just hangs (need to abort with Ctrl+C).
Hope anybody can help me. The cluster know works with the single node,
but it is definively quite worrying because we don't have redundancy.
Thanks in advance,
Ranjan
root@tukan2 /var/www/projects # ceph -s
cluster:
id: 19895e72-4a0c-4d5d-ae23-7f631ec8c8e4
health: HEALTH_WARN
insufficient standby MDS daemons available
Reduced data availability: 264 pgs inactive
Degraded data redundancy: 264 pgs unclean
services:
mon: 3 daemons, quorum tukan1,tukan2,tukan0
mgr: tukan0(active), standbys: tukan2
mds: cephfs-1/1/1 up {0=tukan2=up:active}
osd: 2 osds: 2 up, 2 in
data:
pools: 3 pools, 264 pgs
objects: 0 objects, 0 bytes
usage: 0 kB used, 0 kB / 0 kB avail
pgs: 100.000% pgs unknown
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