Looks like keep alive is timing out:
2015-05-04 16:49:01.912+0000: 5567: warning : virKeepAliveTimerInternal:140 : No response from client 0x7f896af0d200 after 5 keepalive messages in 30 seconds
Looks like keep alive is timing out:
2015-05-04 16:49:01.912+0000: 5567: warning : virKeepAliveTim erInternal: 140 : No response from client 0x7f896af0d200 after 5 keepalive messages in 30 seconds