Hi,

i'm running a Ceph v18.2.4 cluster. I'm trying to build some latency monitoring 
with the


ceph daemon osd.4 perf dump


cli command. On most of the OSDs i get all the metrics i need. On some OSDs i 
only get zero values:


osd.op_latency.avgcount: 0


I already tried restarting the OSD process which didn't help. I also tried to 
reset the metrics via


ceph daemon osd.4 perf reset all


but that didn't help either. How can that be that some OSDs don't show values 
here? How can i fix that?


Thanks

Regards,

Kilian
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