Previously, if _ensure_resource_provider encountered any error from the
placement REST API, it would (sometimes log a message and) return None.
Furthermore, a name conflict while creating the provider was treated the
same as a UUID conflict, which would actually result in None being
returned.
With this change set, the error paths that previously returned None now
raise one of the new ResourceProviderRetrievalFailed or
ResourceProviderCreationFailed exceptions; and the name conflict path is
detected and treated as an error condition.
Note: This change set only touches the SchedulerReportClient side of
these error conditions - it makes no attempt to add error handling to
its callers. Case in point, the API samples tests needed fixing because
they were previously running into the name conflict error condition, but
not noticing. As currently implemented, the new exceptions will
percolate up to ComputeManager.update_available_resource_for_node like
any others coming from SchedulerReportClient, where they will be logged
and ignored.
Change-Id: I0c4ca6a81f213277fe7219cb905a805712f81e36
Closes-Bug: #1735430
FilterScheduler is the only scheduler driver that properly integrated
with placement api so this patch changes the functional test environment
to use the FilterScheduler instead of the ChanceScheduler.
The amount of vcpu the SmallFakeDriver reports need to be bumped to 2
as during resize to same host the filter scheduler doubles the
allocation on the host. Simply relying on the 16.0 default allocation
ratio does not work as the max_unit of the vcpu does not use the
allocation ratio to avoid that a single server overallocates the cpu.
The only change in unit test is
test_create_instance_with_oversubscribed_cpu which also loads the
SmallFakeDriver and asserts available resources on it.
Change-Id: I12de2e195022593ea2a3e2894f2c3b5226930d4f
When there are thousands of compute nodes, it would be slow to get the
whole hypervisor list, and it is bad for user experience to display
thousands of items in a table in horizon. This patch is proposed to
support pagination for hypervisor by adding `limit` and `marker` to
the list api.
Implements blueprint: pagination-for-hypervisor
Change-Id: Ie7f8b5c733b383f3e69fa23188e56257e503b5f7
Eric Fried