Why Instance cannot be started after all node reboot ?
Issue
- After reboot or network and service restart on all nodes , the instance cannot be started.
- Multiple openstack services like cinder / nova / neutron are seen in down state .
- Duplicate services are seen in 'nova service-list' , 'cinder service-list' & 'neutron agent-list' after node reboot .
# nova service-list
+----+------------------+------------------------------------+----------+---------+-------+----------------------------+-----------------+
| Id | Binary | Host | Zone | Status | State | Updated_at | Disabled Reason |
+----+------------------+------------------------------------+----------+---------+-------+----------------------------+-----------------+
| 1 | nova-consoleauth | controller1.example.com | internal | enabled | up | 2015-12-24T05:37:36.000000 | - |
| 2 | nova-scheduler | controller1.example.com | internal | enabled | up | 2015-12-24T05:37:35.000000 | - |
| 3 | nova-conductor | controller1.example.com | internal | enabled | up | 2015-12-24T05:37:34.000000 | - |
| 4 | nova-cert | controller1.example.com | internal | enabled | up | 2015-12-24T05:37:35.000000 | - |
| 5 | nova-compute | compute1 | nova | enabled | down | 2015-12-24T05:37:32.000000 | None |
| 5 | nova-compute | compute2 | nova | enabled | down | 2015-12-24T05:37:33.000000 | None |
| 5 | nova-compute | compute3 | nova | enabled | down | 2015-12-24T05:37:34.000000 | None |
| 8 | nova-compute | compute1.example.com | nova | enabled | up | 2015-12-24T18:45:00.000000 | None |
| 9 | nova-compute | compute2.example.com | nova | enabled | up | 2015-12-24T18:45:30.000000 | None |
| 10 | nova-compute | compute3.example.com | nova | enabled | up | 2015-12-24T18:45:06.000000 | None |
+----+------------------+------------------------------------+----------+---------+-------+----------------------------+-----------------+
- Existing instances fail to start after compute node reboot or network and service restart .
Environment
- Red Hat OpenStack
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