Hi,

After updating glusterfs server to 3.8.5 (from CentOS-gluster-3.8.repo) the KVM virtual machines (qemu–kvm-ev-2.3.0-31) that access storage using libgfapi are no longer able to start. The libvirt log file shows:

[2016-11-02 14:26:41.864024] I [MSGID: 104045] [glfs-master.c:91:notify]
0-gfapi: New graph 73332d32-3937-3130-2d32-3031362d3131 (0) coming up
[2016-11-02 14:26:41.864075] I [MSGID: 114020] [client.c:2356:notify]
0-testvol-client-0: parent translators are ready, attempting connect on transport
[2016-11-02 14:26:41.882975] I [rpc-clnt.c:1947:rpc_clnt_reconfig]
0-testvol-client-0: changing port to 49152 (from 0)
[2016-11-02 14:26:41.889362] I [MSGID: 114057]
[client-handshake.c:1446:select_server_supported_programs]
0-testvol-client-0: Using Program GlusterFS 3.3, Num (1298437), Version
(330)
[2016-11-02 14:26:41.890001] I [MSGID: 114046]
[client-handshake.c:1222:client_setvolume_cbk] 0-testvol-client-0:
Connected to testvol-client-0, attached to remote volume
‘/data/brick1/testvol’.
[2016-11-02 14:26:41.890035] I [MSGID: 114047]
[client-handshake.c:1233:client_setvolume_cbk] 0-testvol-client-0: Server and Client lk-version numbers are not same, reopening the fds
[2016-11-02 14:26:41.917990] I [MSGID: 114035]
[client-handshake.c:201:client_set_lk_version_cbk] 0-testvol-client-0:
Server lk version = 1
[2016-11-02 14:26:41.919289] I [MSGID: 104041]
[glfs-resolve.c:885:__glfs_active_subvol] 0-testvol: switched to graph
73332d32-3937-3130-2d32-3031362d3131 (0)
[2016-11-02 14:26:41.922174] I [MSGID: 114021] [client.c:2365:notify]
0-testvol-client-0: current graph is no longer active, destroying rpc_client
[2016-11-02 14:26:41.922269] I [MSGID: 114018]
[client.c:2280:client_rpc_notify] 0-testvol-client-0: disconnected from testvol-client-0. Client process will keep trying to connect to glusterd until brick’s port is available
[2016-11-02 14:26:41.922592] I [MSGID: 101053]
[mem-pool.c:617:mem_pool_destroy] 0-gfapi: size