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Graceful scheduler with real hints

asked 2012-08-23 16:48:46 -0500

wijet-b gravatar image

Hi,

I use the following scheduler filters

scheduler_default_filters=AvailabilityZoneFilter,DifferentHostFilter,RamFilter,ComputeFilter

Is there any way to make scheduler more graceful? e.g. when DifferentHostFilter filters out all available host, scheduler should try to launch instance anywhere. Right now, instance is going into ERROR state during scheduling ('Failed to schedule_run_instance: No valid host was found.').

In current implementation, os:scheduler_hints hash is a bit misleading, because strictly speaking these are not hints but filters.

Is writing own scheduler a good idea? Do you plan making more graceful scheduler?

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answered 2012-09-08 12:17:06 -0500

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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answered 2012-09-11 16:52:00 -0500

wijet-b gravatar image

Any thoughts about this one?

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answered 2012-09-27 08:49:17 -0500

This question was expired because it remained in the 'Open' state without activity for the last 15 days.

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answered 2012-10-01 08:42:44 -0500

wijet-b gravatar image

I still need an answer, thanks.

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answered 2012-10-16 02:35:58 -0500

gtt116 gravatar image

Hope this is helpful to you. http://docs.openstack.org/developer/nova/devref/filter_scheduler.html (http://docs.openstack.org/developer/n...) In my option, scheduler_hints is a hint used for filtering hosts. Is there any bug you found in scheduler? or some thing not graceful?

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Asked: 2012-08-23 16:48:46 -0500

Seen: 68 times

Last updated: Oct 16 '12