Generic host state for Scheduler

Registered by rerngvit yanggratoke on 2013-05-03

This blueprint aims to address two key issues. First, currently, the only source of information for host state is a compute node; nonetheless, it is important for extending scheduling capability, if the scheduler can also use information collected from other services, for example, Ceilometer and Cinder. This blueprint addresses how such a generic host state could be implemented. Second, currently, the update interval for all metrics of host state is shared; however, some metrics change at different speeds, for instance, the number of free VCPUs and CPU utilization, and should be monitored at different intervals.

Blueprint information

Status:
Complete
Approver:
None
Priority:
Undefined
Drafter:
None
Direction:
Needs approval
Assignee:
None
Definition:
Obsolete
Series goal:
None
Implementation:
Not started
Milestone target:
None
Completed by
rerngvit yanggratoke on 2014-11-10

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Who is doing the work here? It needs to be assigned before it can go into the havana roadmap. --russellb

Ceilometer supports different intervals for different polling tasks. Maybe that could be leveraged. -llu

blueprint https://blueprints.launchpad.net/nova/+spec/utilization-aware-scheduling has some duplication with this . -lluWho is doing the work here? It needs to be assigned before it can go into the havana roadmap. --russellb

Ceilometer supports different intervals for different polling tasks. Maybe that could be leveraged. -llu

blueprint https://blueprints.launchpad.net/nova/+spec/utilization-aware-scheduling has some duplication with this . -llu

Marking this blueprint as definition: Drafting. If you are still working on this, please re-submit via nova-specs. If not, please mark as obsolete, and add a quick comment to describe why. --johnthetubaguy (20th April 2014)

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