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zhangbailin
c19de075e1
Add nested resource providers limit for multi create
In 21.0.0 Ussuri we were completed the nova-cyborg interaction feature, but there are some issue when multiple create instances. Creating servers with accelerators provisioned with the Cyborg service, if a flavor asks for resources that are provided by nested Resource Provider inventories (eg. VGPU) and the user wants multi-create (ie. say --max 2) then the scheduler could be returning a NoValidHosts exception even if each nested Resource Provider can support at least one specific instance, if the total wanted capacity is not supported by only one nested RP. For example,creating servers with accelerators provisioned with the Cyborg service, if two children RP have 4 VGPU inventories each: - you can ask for a flavor with 2 VGPU with --max 2 - but you can't ask for a flavor with 4 VGPU and --max 2 Related-Bug: #1874664 Change-Id: I64647a6ba79c47c891134cedb49f03d3c61e8824