Hi Mohamad, >> I'm currently chewing on an issue regarding "slow requests are blocked". I'd like to identify the OSD that is causing those events >> once the cluster is back to HEALTH_OK (as I have no monitoring yet that would get this info in realtime). >> >> Collecting this information could help identify aging disks if you were able to accumulate and analyze which OSD had blocking >> requests in the past and how often those events occur. >> >> My research so far let's me think that this information is only available as long as the requests are actually blocked. Is this >> correct? > > I think this is what you're looking for: > > $> ceph daemon osd.X dump_historic_slow_ops > > which gives you recent slow operations, as opposed to > > $> ceph daemon osd.X dump_blocked_ops > > which returns current blocked operations. You can also add a filter to > those commands. Thanks for these commands. I'll have a look into those. If I understand these correctly it means that I need to run these at each server for each OSD instead of at a central location, is that correct? Regards, Uwe _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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