문제 : 인스턴스가 생성되지 않고 아래와 같은 에러발생
ComputeNode
# tail -f /var/log/nova/nova-compute.log
...................................
2016-08-18 09:33:44.950 5722 ERROR nova.network.linux_net [req-693b82fb-e24e-42d3-b6f8-31f2805303bb b03804ea1653457fafcfad34fcc28212 54ce8cc61ed54db6ba0666ab1148c4ba - - -] Unable to execute ['ovs-vsctl', '--timeout=120', '--', '--if-exists', 'del-port', u'qvof178718f-16', '--', 'add-port', 'br-int', u'qvof178718f-16', '--', 'set', 'Interface', u'qvof178718f-16', u'external-ids:iface-id=f178718f-1625-4489-bad8-2f98fad0d67b', 'external-ids:iface-status=active', u'external-ids:attached-mac=fa:16:3e:9c:22:89', 'external-ids:vm-uuid=7007fd41-555b-4651-a07b-51f01b8ca01f']. Exception: Unexpected error while running command.
Command: sudo nova-rootwrap /etc/nova/rootwrap.conf ovs-vsctl --timeout=120 -- --if-exists del-port qvof178718f-16 -- add-port br-int qvof178718f-16 -- set Interface qvof178718f-16 external-ids:iface-id=f178718f-1625-4489-bad8-2f98fad0d67b external-ids:iface-status=active external-ids:attached-mac=fa:16:3e:9c:22:89 external-ids:vm-uuid=7007fd41-555b-4651-a07b-51f01b8ca01f
Exit code: 1
Stdout: u''
Stderr: u'sudo: unable to resolve host hl-206-34\novs-vsctl: unix:/var/run/openvswitch/db.sock: database connection failed (Protocol error)\n'
2016-08-18 09:33:44.951 5722 ERROR nova.compute.manager [req-693b82fb-e24e-42d3-b6f8-31f2805303bb b03804ea1653457fafcfad34fcc28212 54ce8cc61ed54db6ba0666ab1148c4ba - - -] [instance: 7007fd41-555b-4651-a07b-51f01b8ca01f] Instance failed to spawn
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# pstree
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├─nova-compute───21*[{nova-compute}]
├─26*[ovsdb-client]
...................
# ps aux |grep ovs
root 21968 0.0 0.0 19476 544 ? S<s 13:23 0:00 ovsdb-server: monitoring pid 21969 (healthy)
root 21969 0.4 0.0 19876 2084 ? S< 13:23 0:01 ovsdb-server /etc/openvswitch/conf.db -vconsole:emer -vsyslog:err -vfile:info --remote=punix:/var/run/openvswitch/db.sock --private-key=db:Open_vSwitch,SSL,private_key --certificate=db:Open_vSwitch,SSL,certificate --bootstrap-ca-cert=db:Open_vSwitch,SSL,ca_cert --no-chdir --log-file=/var/log/openvswitch/ovsdb-server.log --pidfile=/var/run/openvswitch/ovsdb-server.pid --detach --monitor
root 21978 0.0 0.0 24100 628 ? S<s 13:23 0:00 ovs-vswitchd: monitoring pid 21979 (healthy)
root 21979 1.0 0.1 393672 50880 ? S<Ll 13:23 0:04 ovs-vswitchd unix:/var/run/openvswitch/db.sock -vconsole:emer -vsyslog:err -vfile:info --mlockall --no-chdir --log-file=/var/log/openvswitch/ovs-vswitchd.log --pidfile=/var/run/openvswitch/ovs-vswitchd.pid --detach --monitor
root 25487 0.0 0.0 19548 1864 ? S 13:25 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 25651 0.0 0.0 19548 1864 ? S 13:25 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 25781 0.0 0.0 19548 1864 ? S 13:26 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 25925 0.0 0.0 19548 1864 ? S 13:26 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26056 0.0 0.0 19548 1860 ? S 13:27 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26199 0.0 0.0 19548 1864 ? S 13:27 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26330 0.0 0.0 19548 1864 ? S 13:28 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26442 0.0 0.0 19548 1864 ? S 13:28 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26528 0.0 0.0 19548 1860 ? S 13:29 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26629 0.0 0.0 19548 1860 ? S 13:29 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26723 0.0 0.0 19548 1864 ? S 13:30 0:00 /usr/bin/ovsdb-client monitor Interface name,ofport,external_ids --format=json
root 26750 0.0 0.0 11680 928 pts/11 S+ 13:30 0:00 grep --color=auto ovs
# sudo /usr/bin/neutron-rootwrap /etc/neutron/rootwrap.conf ovsdb-client monitor Interface name,ofport,external_ids --format=json
sudo: unable to resolve host hl-206-34
{"data":[["84fb458b-103e-44d0-b580-0a0dd63aef64","initial","br-int",65534,["map",[]]],["6fb06d19-4e65-4fcc-9625-e8e29993b9c4","initial","patch-int",1,["map",[]]],["6cda4717-9df4-4194-aa5f-e27b2f525e70","initial","br-tun",65534,["map",[]]],["bdcf25b6-33f4-4408-a08f-e54e0d4e5e32","initial","patch-tun",1,["map",[]]],["483f842e-8fc5-45cb-85af-5086b1ec6fa1","initial","br0",65534,["map",[]]],["503e9e2b-19af-47f5-b47f-b17b738806e3","initial","eth2",1,["map",[]]]],"headings":["row","action","name","ofport","external_ids"]}
해결)
자기자신 ComputeNode hostname 설정이 되어있지 않았음
# cat /etc/hosts
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172.16.206.34 hl-206-34 # 추가
# service openvswitch-switch restart
