Bug #21024
Perfcounters: wrong latency information from admin socket
% Done:
0%
Source:
Tags:
Backport:
Regression:
No
Severity:
3 - minor
Reviewed:
Description
Hello.
We found out that for some OSD's op_w_latency and op_r_latency counters have values of 0:
ceph --admin-daemon /var/run/ceph/ceph-osd.66.asok perf dump | grep -A3 op_r_lat "op_r_latency": { "avgcount": 0, "sum": 0.000000000 },
We use collectd ceph plugin and it returns no value if 0 is present by socket. We tried to reset counters with `perf reset all`, but it didn't help.
These are production serves, so we didn't try to restart OSD's yet. This is not a single case, we have more then one OSD with wrong perf counters.
Hope for help.