Public bug reported:
Effectively adding this extra spec to use the 'granular resource
request' feature of placement also requires that all the computes such
flavor attempts to target are added into an aggregate with the metadata
'group_policy' set and equal to 'none' or 'isolate'.
We either have to finally move the group_policy extra spec to its own namespace
(there's a TODO in the code for that, similar to what has been done to
hide_hypervisor_id),
or explicitly ignore this key in AggregateInstanceExtraSpecsFilter.
example:
using the flavor with the following extra spec
group_policy='none', resources1:CUSTOM_MIG_1G_5GB='1',
resources2:CUSTOM_MIG_1G_5GB='1'
and having no aggregates, I get the following error in the scheduler log
2024-01-09 22:00:03.045 1 DEBUG nova.filters [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default] Starting with 1 host(s)
get_filtered_objects
/var/lib/openstack/lib/python3.10/site-packages/nova/filters.py:70
2024-01-09 22:00:03.046 1 DEBUG
nova.scheduler.filters.aggregate_instance_extra_specs [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default]
(kaas-node-f5f4a99c-6783-4b5f-b42a-0d772e1b0b11,
kaas-node-f5f4a99c-6783-4b5f-b42a-0d772e1b0b11.kaas-kubernetes-4d64eb64810c48b3b5ac17da6a77eede)
ram: 192851MB disk: 658432MB io_ops: 0 instances: 0, allocation_candidates: 6
fails flavor extra_specs requirements. Extra_spec group_policy is not in
aggregate. host_passes
/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/filters/aggregate_instance_extra_specs.py:63
2024-01-09 22:00:03.046 1 INFO nova.filters [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default] Filter
AggregateInstanceExtraSpecsFilter returned 0 hosts
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/2048874
Title:
group_policy flavor extra spec is not compatible with
AggregateInstanceExtraSpecsFilter
Status in OpenStack Compute (nova):
New
Bug description:
Effectively adding this extra spec to use the 'granular resource
request' feature of placement also requires that all the computes such
flavor attempts to target are added into an aggregate with the
metadata 'group_policy' set and equal to 'none' or 'isolate'.
We either have to finally move the group_policy extra spec to its own
namespace (there's a TODO in the code for that, similar to what has been done
to hide_hypervisor_id),
or explicitly ignore this key in AggregateInstanceExtraSpecsFilter.
example:
using the flavor with the following extra spec
group_policy='none', resources1:CUSTOM_MIG_1G_5GB='1',
resources2:CUSTOM_MIG_1G_5GB='1'
and having no aggregates, I get the following error in the scheduler
log
2024-01-09 22:00:03.045 1 DEBUG nova.filters [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default] Starting with 1 host(s)
get_filtered_objects
/var/lib/openstack/lib/python3.10/site-packages/nova/filters.py:70
2024-01-09 22:00:03.046 1 DEBUG
nova.scheduler.filters.aggregate_instance_extra_specs [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default]
(kaas-node-f5f4a99c-6783-4b5f-b42a-0d772e1b0b11,
kaas-node-f5f4a99c-6783-4b5f-b42a-0d772e1b0b11.kaas-kubernetes-4d64eb64810c48b3b5ac17da6a77eede)
ram: 192851MB disk: 658432MB io_ops: 0 instances: 0, allocation_candidates: 6
fails flavor extra_specs requirements. Extra_spec group_policy is not in
aggregate. host_passes
/var/lib/openstack/lib/python3.10/site-packages/nova/scheduler/filters/aggregate_instance_extra_specs.py:63
2024-01-09 22:00:03.046 1 INFO nova.filters [None
req-db963b93-798c-4289-93f6-52ad7054ac70 8f2db13a6c5c462bbe921c41d2beac3b
d7355faecc8c45edb7d7de3837df6fd9 - - default default] Filter
AggregateInstanceExtraSpecsFilter returned 0 hosts
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