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 <josy@xxxxxxxxxxxxxxxxxxxxx> 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 ?
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