[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]
** Changed in: nova
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1593186
Title:
Nova instance stuck in powering-off when rebooting all nodes in
cluster
Status in OpenStack Compute (nova):
Expired
Bug description:
After rebooting all nodes in the cluster, all the instances that were running
on the cluster are stuck in Status ACTIVE, Task state: powering-off, Power
state: Crashed.
From the log it looks that during in nova-compute service start, messages
sent form init_host method vanished, because the start of RPC server is invoked
only afterwards.
The menager.init_host methods, see an instance with vm_state ==
vm_states.ACTIVE and vm_power_state in (power_state.SHUTDOWN,
power_state.CRASHED). I get the log message "Instance shutdown by itself.
Calling the stop API. Current vm_state: active, current task_state: None,
original DB power_state: 1, current VM power_state: 6".
Then it calls the api.stop method, which invokes the api.force_stop method,
and I see the following log message "Going to try to stop instance force_stop".
This method invokes through RPC a stop_instance method. But the RPC message
never reach the RPC server, which is started only after the init_host is called
in service.start method.
Since I am using rabbitmq, the message queues after rebooting the cluster of
nodes are not initiated, and the call never gets to the destination.
After wards, the _sync_instance_power_state see the powering-off task
state, and never cleans the instance state. I get the log messages:
"During sync_power_state the instance has a pending task (powering-
off). Skip."
Nova version is 12.0.0.
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