Am 15.01.19 um 12:45 schrieb Marc Roos: > > I upgraded this weekend from 12.2.8 to 12.2.10 without such issues > (osd's are idle) it turns out this was a kernel bug. Updating to a newer kernel - has solved this issue. Greets, Stefan > -----Original Message----- > From: Stefan Priebe - Profihost AG [mailto:s.priebe@xxxxxxxxxxxx] > Sent: 15 January 2019 10:26 > To: ceph-users@xxxxxxxxxxxxxx > Cc: n.fahldieck@xxxxxxxxxxxx > Subject: Re: slow requests and high i/o / read rate on > bluestore osds after upgrade 12.2.8 -> 12.2.10 > > Hello list, > > i also tested current upstream/luminous branch and it happens as well. A > clean install works fine. It only happens on upgraded bluestore osds. > > Greets, > Stefan > > Am 14.01.19 um 20:35 schrieb Stefan Priebe - Profihost AG: >> while trying to upgrade a cluster from 12.2.8 to 12.2.10 i'm > experience >> issues with bluestore osds - so i canceled the upgrade and all > bluestore >> osds are stopped now. >> >> After starting a bluestore osd i'm seeing a lot of slow requests > caused >> by very high read rates. >> >> >> Device: rrqm/s wrqm/s r/s w/s rkB/s wkB/s >> avgrq-sz avgqu-sz await r_await w_await svctm %util >> sda 45,00 187,00 767,00 39,00 482040,00 8660,00 >> 1217,62 58,16 74,60 73,85 89,23 1,24 100,00 >> >> it reads permanently with 500MB/s from the disk and can't service > client >> requests. Overall client read rate is at 10.9MiB/s rd >> >> I can't reproduce this with 12.2.8. Is this a known bug / regression? >> >> Greets, >> Stefan >> > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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