Thanks Patrick, is this the bug you are referring to https://tracker.ceph.com/issues/42515 ? We also see performance issues mainly on metadata operations like finding file stats operations , however mds perf dump shows no sign of any latencies . could this bug cause any performance issues ? here is the perf dump metrics . https://pastebin.com/178anAe1 do you see any clue in this that could cause slow down in such operations ? our metadara pool has around 1.7 GB of data I gave mds cache 3 GB , I am not sure where to check how much used in the 3 GB or what is hit and miss count/ration in cache . We have huge cluster , there is definitely not enough IO that could saturate actual disk capacity so it is definitely MDS , not sure what to check here to pin point the issues. Could you point me where I can start to go deep in troubleshooting this ? Thanks, Uday. _______________________________________________ ceph-users mailing list -- ceph-users@xxxxxxx To unsubscribe send an email to ceph-users-leave@xxxxxxx
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