Hi,
Successfully upgrade a small development 4x node Giant 0.87-1 cluster to Hammer 0.94-1, each node with 6x OSD - 146GB, 19 pools, mainly 2 in usage.
Only minor thing now ceph -s complaining over too may PGs, previously Giant had complain of too few, so various pools were bumped up till health status was okay as before upgrading. Admit, that after bumping PGs up in Giant we had changed pool sizes from 3 to 2 & min 1 in fear of perf. when backfilling/recovering PGs.
# ceph -s
cluster 16fe2dcf-2629-422f-a649-871deba78bcd
health HEALTH_WARN
too many PGs per OSD (1237 > max 300)
monmap e29: 3 mons at {0=10.0.3.4:6789/0,1=10.0.3.2:6789/0,2=10.0.3.1:6789/0}
election epoch 1370, quorum 0,1,2 2,1,0
mdsmap e142: 1/1/1 up {0=2=up:active}, 1 up:standby
osdmap e3483: 24 osds: 24 up, 24 in
pgmap v3719606: 14848 pgs, 19 pools, 530 GB data, 133 kobjects
1055 GB used, 2103 GB / 3159 GB avail
14848 active+clean
Can we just reduce PGs again and should we decrement in minor steps one pool at a time…
Any thoughts, TIA!
/Steffen
> 1. restart the monitor daemons on each node
> 2. then, restart the osd daemons on each node
> 3. then, restart the mds daemons on each node
> 4. then, restart the radosgw daemon on each node
>
> Regards.
>
> --
> François Lafont
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