Hi;
I am using Hammer 0.49.9 release on my Ceph Storage, today i noticed that listing an rbd pool takes to much time then the old days. If i have more rbd images on pool it takes much more time.
My clusters health is ok and currently there is no load on the cluster. Only rbd images are used to serve to vm's.
I am sending some information below. My level.db size is also 280 mb, i also compacted level.db to 40 mb size but again "rbd ls -l" output is too slow.
This timing is important for my vm deploy time to complete because when i refresh a pool/datastore it takes nearly to 20 seconds or more for 350 rbd images+snapshots.
Thanks for all help
Regards
Ozhan Ruzgar
root@mont3:/var/lib/ceph/mon/ceph-mont3/store.db# ceph -s
cluster 6b1cb3f4-85e6-4b70-b057-ba7716f823cc
health HEALTH_OK
monmap e1: 3 mons at {mont1=172.16.x.x:6789/0,mont2=172.16.x.x:6789/0,mont3=172.16.x.x:6789/0}
election epoch 126, quorum 0,1,2 mont1,mont2,mont3
osdmap e20509: 40 osds: 40 up, 40 in
pgmap v20333442: 1536 pgs, 3 pools, 235 GB data, 63442 objects
700 GB used, 3297 GB / 3998 GB avail
1536 active+clean
client io 0 B/s rd, 3785 kB/s wr, 314 op/s
root@mont1:~# time rbd ls -l cst2|wc -l
278
real 0m11.970s
user 0m0.572s
sys 0m0.316s
root@mont1:~# time rbd ls -l cst3|wc -l
15
real 0m0.396s
user 0m0.020s
sys 0m0.032s
root@mont1:~# time rbd ls -l cst4|wc -l
330
real 0m16.630s
user 0m0.668s
sys 0m0.336s
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