Public bug reported: The way scheduler consumes disk resources in host state is inconsistent with RT's way in compute service.
The scheduler consumes "free_disk_mb" in its host state. https://github.com/openstack/nova/blob/master/nova/scheduler/host_manager.py#L266 It comes from the min value of "free_disk_gb" and "disk_available_least" in ComputeNode object. https://github.com/openstack/nova/blob/master/nova/scheduler/host_manager.py#L189-L201 But compute node changes "local_gb_used" instead in consuming resources from a request. https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L709-L710 There is a inconsistent gap(confirmed) of compute node state between scheduler and resource tracker, but somehow the compute node will be updated by virt driver to the consistent status after maybe 10 seconds. ** Affects: nova Importance: Undecided Assignee: Yingxin (cyx1231st) Status: In Progress ** Changed in: nova Assignee: (unassigned) => Yingxin (cyx1231st) ** Changed in: nova Status: New => In Progress -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to OpenStack Compute (nova). https://bugs.launchpad.net/bugs/1550098 Title: Disk resource consumption is inconsistent between scheduler and resource tracker Status in OpenStack Compute (nova): In Progress Bug description: The way scheduler consumes disk resources in host state is inconsistent with RT's way in compute service. The scheduler consumes "free_disk_mb" in its host state. https://github.com/openstack/nova/blob/master/nova/scheduler/host_manager.py#L266 It comes from the min value of "free_disk_gb" and "disk_available_least" in ComputeNode object. https://github.com/openstack/nova/blob/master/nova/scheduler/host_manager.py#L189-L201 But compute node changes "local_gb_used" instead in consuming resources from a request. https://github.com/openstack/nova/blob/master/nova/compute/resource_tracker.py#L709-L710 There is a inconsistent gap(confirmed) of compute node state between scheduler and resource tracker, but somehow the compute node will be updated by virt driver to the consistent status after maybe 10 seconds. To manage notifications about this bug go to: https://bugs.launchpad.net/nova/+bug/1550098/+subscriptions -- Mailing list: https://launchpad.net/~yahoo-eng-team Post to : yahoo-eng-team@lists.launchpad.net Unsubscribe : https://launchpad.net/~yahoo-eng-team More help : https://help.launchpad.net/ListHelp
