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
There are quite a few changes here as this is not only handling
uuids for the hypervisor id but it's also a refactor in several
APIs for consistency.
The main changes are detailed in the REST API Version History
doc in this change, but to summarize the changes:
* Hypervisor and service IDs are handled as the UUIDs for those
resources; this is necessary for accurately working with these
resources across multiple cells.
* The 'servers' and 'search' routes are deprecated and folded into
the index and detail methods as query parameters, validated using
json schema.
* The show method will also be able to return the list of servers
hosted on the given hypervisor using the with_servers query
parameter.
* The marker used when paging over lists of hypervisors is the
compute node UUID.
* Using the hypervisor_hostname_pattern query parameter will not
work with paging parameters.
* API reference docs are updated for the detailed changes.
* Functional and unit tests are provided for all changes.
Part of blueprint service-hyper-uuid-in-api
Change-Id: I828350c179df8bcfa4739910abeafaba2f96982b
Eric Fried