2016-10-10 20:47 GMT-03:00 Lindsay Mathieson <lindsay.mathie...@gmail.com>:

> On 11/10/2016 7:59 AM, Thiago Damas wrote:
>
>> I'm experiencing some timeouts when creating new disks/VMs, using a ceph
>> storage.
>>    Is there some way to reduce the long listing of rbd ls, ie "rbd ls -l"?
>>
>
> Hows your "ceph -s" look?
>
>
> Are the logs showing any particular OSD's as being slow to respond?
>
> --
> Lindsay Mathieson
>
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Look:

~# ceph -s
    cluster 71b07854-5d50-46e7-a130-2230712cd3aa
     health HEALTH_OK
     monmap e9: 5 mons at
{0=192.168.33.AAA:6789/0,1=192.168.33.BBB:6789/0,2=192.168.33.CCC:6789/0,3=192.168.33.DDD:6789/0,4=192.168.33.EEE:6789/0}
            election epoch 294, quorum 0,1,2,3,4 0,1,2,3,4
     osdmap e3466: 40 osds: 40 up, 40 in
      pgmap v15080315: 2048 pgs, 1 pools, 7910 GB data, 1995 kobjects
            23467 GB used, 122 TB / 145 TB avail
                2048 active+clean
  client io 36159 kB/s rd, 11745 kB/s wr, 1385 op/s

~# ceph osd perf
osd fs_commit_latency(ms) fs_apply_latency(ms)
  0                     1                   10
  1                     1                   13
  2                     0                    7
  3                     1                   12
  4                     0                    6
  5                     0                    7
  6                     0                    5
  7                     1                    9
  8                     1                   10
  9                     1                    9
 10                     1                   11
 11                     1                    6
 12                     1                   13
 13                     0                   22
 14                     2                    7
 15                     1                    8
 16                     1                    8
 17                     0                    8
 18                     1                    9
 19                     1                    7
 20                     3                   13
 21                     2                   30
 22                     3                   16
 23                     1                   10
 24                     1                    8
 25                     0                    8
 26                     1                    7
 27                     1                    8
 28                     1                    7
 29                     0                    6
 30                     1                   13
 31                     1                    9
 32                     1                   11
 33                     1                    8
 34                     1                    7
 35                     1                   10
 36                     1                   13
 37                     1                    6
 38                     1                    9
 39                     2                   12

~# time rbd ls -l
...lines and lines...
real 0m37.351s
user 0m0.552s
sys 0m0.232s


  Thiago
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