Just had a chat with Vish. Seems that this behavior only occurs when the
compute_filter is disabled (which is true in my test environment). I am
marking this as not-a-bug.
Even though dead compute nodes should be getting filtered out by the
compute filter, the scheduler also shouldn't be caching them for ever.
** Changed in: nova
Status: In Progress => Invalid
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https://bugs.launchpad.net/bugs/1120198
Title:
scheduler may pick deleted baremetal nodes
Status in OpenStack Compute (Nova):
Invalid
Bug description:
When deleting a baremetal node, the scheduler may continue to attempt
to boot instances on that node. The compute manager will refuse these
requests since the selected node is no longer valid. I have not found
any mechanism to make the scheduler stop attempting to use the non-
existent node.
I suspect the cause of this is that
ComputeManager.update_available_resource does not actively remove the
resource because it is no longer returned from
driver.get_available_nodes, but IMBW....
The error looks like this:
2013-02-09 09:00:03.240 TRACE nova.openstack.common.rpc.amqp File
"/opt/stack/nova/nova/compute/manager.py", line 700, in _run_instance
2013-02-09 09:00:03.240 TRACE nova.openstack.common.rpc.amqp rt =
self._get_resource_tracker(node)
2013-02-09 09:00:03.240 TRACE nova.openstack.common.rpc.amqp File
"/opt/stack/nova/nova/compute/manager.py", line 346, in _get_resource_tracker
2013-02-09 09:00:03.240 TRACE nova.openstack.common.rpc.amqp raise
exception.NovaException(msg)
2013-02-09 09:00:03.240 TRACE nova.openstack.common.rpc.amqp NovaException: 2
is not a valid node managed by this compute host.
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