From libvirtd.log:
2016-05-17 18:47:33.653+0000: 118997: error : qemuProcessWaitForMonitor:2113 : internal error: process exited while connecting to monitor: 2016-05-17T18:47:33.551994Z qemu-system-x86_64: -drive file=rbd:instances/12fe8634-8ed3-452d-a78a-c67e2c690975_disk.config:id=volumes:key=AQBG409TCB5tEhAAPKaHlwHa82Vur4FK0WVPzg==:auth_supported=cephx\;none:mon_host=24.161.248.12\:6789\;24.161.248.13\:6789\;24.161.248.14\:6789,if=none,id=drive-ide0-1-1,readonly=on,format=raw,cache=writeback: error reading header from 12fe8634-8ed3-452d-a78a-c67e2c690975_disk.config
From libvirtd.log:
2016-05-17 18:47:33.653+0000: 118997: error : qemuProcessWait ForMonitor: 2113 : internal error: process exited while connecting to monitor: 2016-05- 17T18:47: 33.551994Z qemu-system-x86_64: -drive file=rbd: instances/ 12fe8634- 8ed3-452d- a78a-c67e2c6909 75_disk. config: id=volumes: key=AQBG409TCB5 tEhAAPKaHlwHa82 Vur4FK0WVPzg= =:auth_ supported= cephx\; none:mon_ host=24. 161.248. 12\:6789\ ;24.161. 248.13\ :6789\; 24.161. 248.14\ :6789,if= none,id= drive-ide0- 1-1,readonly= on,format= raw,cache= writeback: error reading header from 12fe8634- 8ed3-452d- a78a-c67e2c6909 75_disk. config