[ceph-users] Re: osd daemons still reading disks at full speed while there is no pool activity

2021-11-09 Thread Nikola Ciprich
Hello Josh, just wanted to confirm that setting bluefs_buffered_io immediately helped hotfix the problem. I've also updated to 14.2.22 and we'll discuss adding more NVME modules to move OSD databases out of spinners to prevent further occurances thanks a lot for your time! with best regards

[ceph-users] Re: osd daemons still reading disks at full speed while there is no pool activity

2021-11-03 Thread Nikola Ciprich
Hello Josh, > > Was there PG movement (backfill) happening in this cluster recently? > Do the OSDs have stray PGs (e.g. 'ceph daemon osd.NN perf dump | grep > numpg_stray' - run this against an affected OSD from the housing > node)? yes, some nodes have stray pgs (1..5) shell I do something

[ceph-users] Re: osd daemons still reading disks at full speed while there is no pool activity

2021-11-03 Thread Nikola Ciprich
Hello Eugen, thank you for you reply. Yes, restarting all OSDs, monitors, also increasing osd_map_cache_size to 5000 (this helped us in case of problem with not pruning OSD maps). none of this helped.. with best regards nik On Wed, Nov 03, 2021 at 11:41:28AM +, Eugen Block wrote: > Hi, >

[ceph-users] Re: osd daemons still reading disks at full speed while there is no pool activity

2021-11-03 Thread Eugen Block
Hi, I don't have an explanation but I remember having a similar issue a year ago or so. IIRC a simple OSD restart fixed that, so I never got to the bottom of it. Have you tried to restart OSD daemons? Zitat von Nikola Ciprich : Hello fellow ceph users, I'm trying to catch ghost here..