We see the same messages and are similarly on a 4.4 KRBD version that is affected by this.
I have seen no impact from it so far that I know about > -----Original Message----- > From: ceph-users [mailto:ceph-users-boun...@lists.ceph.com] On Behalf Of > Jason Dillaman > Sent: Thursday, 5 October 2017 5:45 AM > To: Gregory Farnum <gfar...@redhat.com> > Cc: ceph-users <ceph-users@lists.ceph.com>; Josy > <j...@colossuscloudtech.com> > Subject: Re: [ceph-users] bad crc/signature errors > > Perhaps this is related to a known issue on some 4.4 and later kernels [1] > where the stable write flag was not preserved by the kernel? > > [1] http://tracker.ceph.com/issues/19275 > > On Wed, Oct 4, 2017 at 2:36 PM, Gregory Farnum <gfar...@redhat.com> > wrote: > > That message indicates that the checksums of messages between your > > kernel client and OSD are incorrect. It could be actual physical > > transmission errors, but if you don't see other issues then this isn't > > fatal; they can recover from it. > > > > On Wed, Oct 4, 2017 at 8:52 AM Josy <j...@colossuscloudtech.com> > wrote: > >> > >> Hi, > >> > >> We have setup a cluster with 8 OSD servers (31 disks) > >> > >> Ceph health is Ok. > >> -------------- > >> [root@las1-1-44 ~]# ceph -s > >> cluster: > >> id: de296604-d85c-46ab-a3af-add3367f0e6d > >> health: HEALTH_OK > >> > >> services: > >> mon: 3 daemons, quorum > >> ceph-las-mon-a1,ceph-las-mon-a2,ceph-las-mon-a3 > >> mgr: ceph-las-mon-a1(active), standbys: ceph-las-mon-a2 > >> osd: 31 osds: 31 up, 31 in > >> > >> data: > >> pools: 4 pools, 510 pgs > >> objects: 459k objects, 1800 GB > >> usage: 5288 GB used, 24461 GB / 29749 GB avail > >> pgs: 510 active+clean > >> ==================== > >> > >> We created a pool and mounted it as RBD in one of the client server. > >> While adding data to it, we see this below error : > >> > >> ======== > >> [939656.039750] libceph: osd20 10.255.0.9:6808 bad crc/signature > >> [939656.041079] libceph: osd16 10.255.0.8:6816 bad crc/signature > >> [939735.627456] libceph: osd11 10.255.0.7:6800 bad crc/signature > >> [939735.628293] libceph: osd30 10.255.0.11:6804 bad crc/signature > >> > >> ========= > >> > >> Can anyone explain what is this and if I can fix it ? > >> > >> > >> _______________________________________________ > >> ceph-users mailing list > >> ceph-users@lists.ceph.com > >> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > > > > > > -- > Jason > _______________________________________________ > ceph-users mailing list > ceph-users@lists.ceph.com > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com Confidentiality: This email and any attachments are confidential and may be subject to copyright, legal or some other professional privilege. They are intended solely for the attention and use of the named addressee(s). They may only be copied, distributed or disclosed with the consent of the copyright owner. If you have received this email by mistake or by breach of the confidentiality clause, please notify the sender immediately by return email and delete or destroy all copies of the email. Any confidentiality, privilege or copyright is not waived or lost because this email has been sent to you by mistake. _______________________________________________ ceph-users mailing list ceph-users@lists.ceph.com http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
