19 lines
1.0 KiB
YAML
19 lines
1.0 KiB
YAML
---
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features:
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- nova-scheduler process is now calling the placement API in order to get
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a list of valid destinations before calling the filters. That works only
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if all your compute nodes are fully upgraded to Ocata. If some
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nodes are not upgraded, the scheduler will still lookup from the DB
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instead which is less performant.
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upgrade:
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- Since the Placement service is now mandatory in Ocata, you need to deploy
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it and amend your compute node configuration with correct placement
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instructions before restarting nova-compute or the compute node will
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refuse to start.
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- If by Newton (14.0.0), you don't use any of the CoreFilter, RamFilter or
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DiskFilter, then please modify all your compute node's configuration by
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amending either ``cpu_allocation_ratio`` (if you don't use CoreFilter) or
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``ram_allocation_ratio`` (if you don't use RamFilter) or
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``disk_allocation_ratio`` (if you don't use DiskFilter) by putting a 9999.0
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value for the ratio before upgrading the nova-scheduler to Ocata.
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