Public bug reported:
Based on code inspection and a discussion with mriedem on IRC, it
appears that when deleting an instance in a pure-Pike cloud the
allocations are not removed until the update_available_resource()
periodic task calls ResourceTracker._update_usage_from_instances(),
which calls _remove_deleted_instances_allocations().
In a mixed Ocata/Pike cloud the allocation will be freed up immediately
when _update_usage_from_instance() calls
self.reportclient.update_instance_allocation().
In the ServerMovingTests functional test we bypass this by forcing the
periodic task to run before checking that the allocations have been
removed.
** Affects: nova
Importance: High
Status: Triaged
** Tags: compute pike-rc-potential placement scheduler
** Summary changed:
- allocations not immediately removed when instance deleted
+ allocations not immediately removed when instance is deleted
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https://bugs.launchpad.net/bugs/1712684
Title:
allocations not immediately removed when instance is deleted
Status in OpenStack Compute (nova):
Triaged
Bug description:
Based on code inspection and a discussion with mriedem on IRC, it
appears that when deleting an instance in a pure-Pike cloud the
allocations are not removed until the update_available_resource()
periodic task calls ResourceTracker._update_usage_from_instances(),
which calls _remove_deleted_instances_allocations().
In a mixed Ocata/Pike cloud the allocation will be freed up
immediately when _update_usage_from_instance() calls
self.reportclient.update_instance_allocation().
In the ServerMovingTests functional test we bypass this by forcing the
periodic task to run before checking that the allocations have been
removed.
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https://bugs.launchpad.net/nova/+bug/1712684/+subscriptions
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