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Custom Filter Scheduler in Nova and Filters [closed]

asked 2013-08-07 04:48:40 -0500

Sudheesh gravatar image

Couple of quick questions on regarding Filter Scheduler and its custom schedulers.(http://docs.openstack.org/developer/nova/devref/filter_scheduler.html)

1) Can nova have more than one scheduler at a time? Standard Scheduler + one custom scheduler?

2) I have written a filter for the filter scheduler. (Something like RamFilter,CoreFilter,ComputeFilter,RetryFilter,AvailabilityZoneFilter,ImagePropertiesFilter,ComputeCapabilitiesFilter) Suppose tomorrow I write a custom scheduler - will this filter still be used? Or should I configure something somewhere?

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Closed for the following reason the question is answered, right answer was accepted by Sudheesh
close date 2013-08-27 03:01:09.488835

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answered 2013-08-27 02:50:02 -0500

Sudheesh gravatar image

I think we can have only one scheduler at a time (obiviously)

However we can have multiple filters

We can add any number of custom filters

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answered 2013-08-12 15:49:06 -0500

koolhead17 gravatar image

updated 2013-08-12 15:51:04 -0500

  1. Yes its very much possible.
  2. Yes you can add your filter along with the exiting filters.
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If its possible to add multiple schedulers - how we should configure it. lets say I have a scheduler called 'Scheduler' . So nova conf may look like below scheduler_manager = nova.scheduler.filters.SchedulerManager scheduler_driver = nova.scheduler.filter.Scheduler Then how can I add a second scheduler

Sudheesh gravatar imageSudheesh ( 2013-08-13 01:29:48 -0500 )edit

Also - If there are 2 schedulers - will both of these called when creating a VM?

Sudheesh gravatar imageSudheesh ( 2013-08-13 01:30:41 -0500 )edit

Do you mean - Can we have 2 'compute scheduler's at the same time?

Sudheesh gravatar imageSudheesh ( 2013-08-13 02:39:15 -0500 )edit
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What i meant is we can have multiple filter scheduler rules on a compute at same time.

koolhead17 gravatar imagekoolhead17 ( 2013-08-13 02:41:11 -0500 )edit

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Asked: 2013-08-07 04:48:40 -0500

Seen: 868 times

Last updated: Aug 27 '13