get_available_resource not implemented in PowerVM compute driver

[David Peraza]

If powervm is the first driver that is used after a fresh nova install, nova scheduler fails to find a host during spawn. The problem is that the nova.compute_nodes table is empty. This usually gets populated and update in implementation of update_available_resource of each driver. See method in virt.libvirt.driver for an example

[Tiago Mello (timello)]

The non-implemented method is actually get_available_resource. update_available_resource is already implemented.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/12014

[Tiago Mello (timello)]

This is the error when launching nova compute with PowerVM driver:

config_file : ['/etc/cinder/cinder.conf']
2012-08-28 14:04:00 DEBUG cinder.service [-] instance_uuid_format : [instance: %(uuid)s] from (pid=12655) wait /opt/stack/cinder/cinder/service.py:420
n <module>
2012-08-28 14:04:04 TRACE nova service.wait()
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/service.py", line 659, in wait
2012-08-28 14:04:04 TRACE nova _launcher.wait()
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/service.py", line 192, in wait
2012-08-28 14:04:04 TRACE nova super(ServiceLauncher, self).wait()
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/service.py", line 162, in wait
2012-08-28 14:04:04 TRACE nova service.wait()
2012-08-28 14:04:04 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 166, in wait
2012-08-28 14:04:04 TRACE nova return self._exit_event.wait()
2012-08-28 14:04:04 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in wait
2012-08-28 14:04:04 TRACE nova return hubs.get_hub().switch()
2012-08-28 14:04:04 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 177, in switch
2012-08-28 14:04:04 TRACE nova return self.greenlet.switch()
2012-08-28 14:04:04 TRACE nova File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py", line 192, in main
2012-08-28 14:04:04 TRACE nova result = function(*args, **kwargs)
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/service.py", line 132, in run_server
2012-08-28 14:04:04 TRACE nova server.start()
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/service.py", line 410, in start
2012-08-28 14:04:04 TRACE nova self.manager.update_available_resource(ctxt)
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/compute/manager.py", line 2927, in update_available_resource
2012-08-28 14:04:04 TRACE nova self.resource_tracker.update_available_resource(context)
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/utils.py", line 733, in inner
2012-08-28 14:04:04 TRACE nova retval = f(*args, **kwargs)
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/compute/resource_tracker.py", line 313, in update_available_resource
2012-08-28 14:04:04 TRACE nova resources = self.driver.get_available_resource()
2012-08-28 14:04:04 TRACE nova File "/opt/stack/nova/nova/virt/driver.py", line 336, in get_available_resource
2012-08-28 14:04:04 TRACE nova raise NotImplementedError()
2012-08-28 14:04:04 TRACE nova NotImplementedError
2012-08-28 14:04:04 TRACE nova

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/12014
Committed: http://github.com/openstack/nova/commit/e5bec8b913a1f2fb2e15710bc9401e3384470cce
Submitter: Jenkins
Branch: master

commit e5bec8b913a1f2fb2e15710bc9401e3384470cce
Author: Tiago Mello <email address hidden>
Date: Mon Aug 27 14:46:48 2012 -0400

    Implements PowerVM get_available_resource method.

    Implements get_available_resource method in the PowerVM driver to
    fix the failure when launching nova-compute. Also, it removes the
    update_available_resource method from PowerVMDriver which is no longer
    required.

    Fixes bug 1040789

    Change-Id: Ibc7e9b80e6d9b8ef3c1a844783a890c592517f89