After clients have upgraded to 4.4.0-103.126 they can no longer connect to the Ceph network.
Using the Grub menu to boot the previous kernel fixes the issue.
The error in dmesg is:
[ 46.811897] FS-Cache: Loaded [ 46.843670] Key type ceph registered [ 46.844177] libceph: loaded (mon/osd proto 15/24) [ 46.863107] FS-Cache: Netfs 'ceph' registered for caching [ 46.863116] ceph: loaded (mds proto 32) [ 46.884392] libceph: client3354099 fsid 2efbeab1-4903-4c4c-8365-6778afecbcbd [ 46.886856] libceph: mon0 10.10.2.111:6789 session established [ 46.897487] ceph: problem parsing mds trace -5 [ 46.897491] ceph: mds parse_reply err -5 [ 46.897492] ceph: mdsc_handle_reply got corrupt reply mds0(tid:1)
All clients are running ceph client version: ii ceph-fs-common 10.2.9-0ubuntu0.16.04.1
Server nodes are running 10.2.6 packages as supplied by Ceph.
All 10.2.* versions are compatible. Using the previous kernel allows the connection to work.
After clients have upgraded to 4.4.0-103.126 they can no longer connect to the Ceph network.
Using the Grub menu to boot the previous kernel fixes the issue.
The error in dmesg is:
[ 46.811897] FS-Cache: Loaded 4903-4c4c- 8365-6778afecbc bd
[ 46.843670] Key type ceph registered
[ 46.844177] libceph: loaded (mon/osd proto 15/24)
[ 46.863107] FS-Cache: Netfs 'ceph' registered for caching
[ 46.863116] ceph: loaded (mds proto 32)
[ 46.884392] libceph: client3354099 fsid 2efbeab1-
[ 46.886856] libceph: mon0 10.10.2.111:6789 session established
[ 46.897487] ceph: problem parsing mds trace -5
[ 46.897491] ceph: mds parse_reply err -5
[ 46.897492] ceph: mdsc_handle_reply got corrupt reply mds0(tid:1)
All clients are running ceph client version: 0ubuntu0. 16.04.1
ii ceph-fs-common 10.2.9-
Server nodes are running 10.2.6 packages as supplied by Ceph.
All 10.2.* versions are compatible. Using the previous kernel allows the connection to work.