[ovirt-users] rebooting hypervisors from time to time

[Erekle Magradze]

Hello there,

I am facing the following problem from time to time one of the 
hypervisor (there are 3 of them)s is rebooting, I am using 
ovirt-release42-4.2.1-1.el7.centos.noarch and glsuter as a storage 
backend (glusterfs-3.12.5-2.el7.x86_64).

I am suspecting gluster because of the e.g. message bellow from one of 
the volumes,

Could you please help and suggest to which direction should 
investigation go?

Thanks in advance

Cheers

Erekle


[2018-02-22 15:36:10.011687] and [2018-02-22 15:37:10.955013]
[2018-02-22 15:41:10.198701] I [MSGID: 109063] 
[dht-layout.c:716:dht_layout_normalize] 0-virtimages-dht: Found 
anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). 
Holes=1 overlaps=0
[2018-02-22 15:41:10.198704] I [MSGID: 109063] 
[dht-layout.c:716:dht_layout_normalize] 0-virtimages-dht: Found 
anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). 
Holes=1 overlaps=0
[2018-02-22 15:42:11.293608] I [MSGID: 109063] 
[dht-layout.c:716:dht_layout_normalize] 0-virtimages-dht: Found 
anomalies in (null) (gfid = 00000000-0000-0000-0000-000000000000). 
Holes=1 overlaps=0
[2018-02-22 15:53:16.245720] I [MSGID: 100030] [glusterfsd.c:2524:main] 
0-/usr/sbin/glusterfs: Started running /usr/sbin/glusterfs version 
3.12.5 (args: /usr/sbin/glusterfs --volfile-server=10.0.0.21 --volfi
le-server=10.0.0.22 --volfile-server=10.0.0.23 --volfile-id=/virtimages 
/rhev/data-center/mnt/glusterSD/10.0.0.21:_virtimages)
[2018-02-22 15:53:16.263712] W [MSGID: 101002] 
[options.c:995:xl_opt_validate] 0-glusterfs: option 'address-family' is 
deprecated, preferred is 'transport.address-family', continuing with 
correction
[2018-02-22 15:53:16.269595] I [MSGID: 101190] 
[event-epoll.c:613:event_dispatch_epoll_worker] 0-epoll: Started thread 
with index 1
[2018-02-22 15:53:16.273483] I [MSGID: 101190] 
[event-epoll.c:613:event_dispatch_epoll_worker] 0-epoll: Started thread 
with index 2
[2018-02-22 15:53:16.273594] W [MSGID: 101174] 
[graph.c:363:_log_if_unknown_option] 0-virtimages-readdir-ahead: option 
'parallel-readdir' is not recognized
[2018-02-22 15:53:16.273703] I [MSGID: 114020] [client.c:2360:notify] 
0-virtimages-client-0: parent translators are ready, attempting connect 
on transport
[2018-02-22 15:53:16.276455] I [MSGID: 114020] [client.c:2360:notify] 
0-virtimages-client-1: parent translators are ready, attempting connect 
on transport
[2018-02-22 15:53:16.276683] I [rpc-clnt.c:1986:rpc_clnt_reconfig] 
0-virtimages-client-0: changing port to 49152 (from 0)
[2018-02-22 15:53:16.279191] I [MSGID: 114020] [client.c:2360:notify] 
0-virtimages-client-2: parent translators are ready, attempting connect 
on transport
[2018-02-22 15:53:16.282126] I [MSGID: 114057] 
[client-handshake.c:1478:select_server_supported_programs] 
0-virtimages-client-0: Using Program GlusterFS 3.3, Num (1298437), 
Version (330)
[2018-02-22 15:53:16.282573] I [MSGID: 114046] 
[client-handshake.c:1231:client_setvolume_cbk] 0-virtimages-client-0: 
Connected to virtimages-client-0, attached to remote volume 
'/mnt/virtimages/virtimgs'.
[2018-02-22 15:53:16.282584] I [MSGID: 114047] 
[client-handshake.c:1242:client_setvolume_cbk] 0-virtimages-client-0: 
Server and Client lk-version numbers are not same, reopening the fds
[2018-02-22 15:53:16.282665] I [MSGID: 108005] 
[afr-common.c:4929:__afr_handle_child_up_event] 
0-virtimages-replicate-0: Subvolume 'virtimages-client-0' came back up; 
going online.
[2018-02-22 15:53:16.282877] I [rpc-clnt.c:1986:rpc_clnt_reconfig] 
0-virtimages-client-1: changing port to 49152 (from 0)
[2018-02-22 15:53:16.282934] I [MSGID: 114035] 
[client-handshake.c:202:client_set_lk_version_cbk] 
0-virtimages-client-0: Server lk version = 1