It would be worthwhile repeating the first test (crashing/killing an OSD host) again with just plain rados clients (e.g. rados bench) and/or rbd. It's not clear whether your issue is specifically related to CephFS or actually something else.
Cheers, On 19 July 2017 at 19:32, Дмитрий Глушенок <gl...@jet.msk.su> wrote: > Hi, > > I can share negative test results (on Jewel 10.2.6). All tests were > performed while actively writing to CephFS from single client (about 1300 > MB/sec). Cluster consists of 8 nodes, 8 OSD each (2 SSD for journals and > metadata, 6 HDD RAID6 for data), MON/MDS are on dedicated nodes. 2 MDS at > all, active/standby. > - Crashing one node resulted in write hangs for 17 minutes. Repeating the > test resulted in CephFS hangs forever. > - Restarting active MDS resulted in successful failover to standby. Then, > after standby became active and the restarted MDS became standby the new > active was restarted. CephFS hanged for 12 minutes. > > P.S. Planning to repeat the tests again on 10.2.7 or higher > > 19 июля 2017 г., в 6:47, 许雪寒 <xuxue...@360.cn> написал(а): > > Is there anyone else willing to share some usage information of cephfs? > Could developers tell whether cephfs is a major effort in the whole ceph > development? > > 发件人: 许雪寒 > 发送时间: 2017年7月17日 11:00 > 收件人: ceph-users@lists.ceph.com > 主题: How's cephfs going? > > Hi, everyone. > > We intend to use cephfs of Jewel version, however, we don’t know its status. > Is it production ready in Jewel? Does it still have lots of bugs? Is it a > major effort of the current ceph development? And who are using cephfs now? > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > -- > Dmitry Glushenok > Jet Infosystems > > > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > -- Cheers, ~Blairo _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
