** Changed in: nova
Status: In Progress => Invalid
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https://bugs.launchpad.net/bugs/1269655
Title:
Make prune compute_node_stats configurable
Status in OpenStack Compute (Nova):
Invalid
Bug description:
In compute/manager.py, there is a periodic task named as
update_available_resource(), it will update resource for each compute
periodically.
@periodic_task.periodic_task
def update_available_resource(self, context):
"""See driver.get_available_resource()
Periodic process that keeps that the compute host's understanding of
resource availability and usage in sync with the underlying
hypervisor.
:param context: security context
"""
new_resource_tracker_dict = {}
nodenames = set(self.driver.get_available_nodes())
for nodename in nodenames:
rt = self._get_resource_tracker(nodename)
rt.update_available_resource(context) <<<<<<<<<< Update here
new_resource_tracker_dict[nodename] = rt
In resource_tracker.py,
https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L384
self._update(context, resources, prune_stats=True)
It always set prune_stats as True, this caused some problems. As if
someone put some metrics to compute_node_stats table, and if those
metrics does not change frequently, the periodic task will prune the
new metrics.
It is better adding a configuration parameter in nova.cont to make
prune_stats as configurable.
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