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[sahid <sahid.ferdjaoui@xxxxxxxxxxxxx>]

Public bug reported:

During a scheduling if we use filter that needs to get data from aggregates like CoreFilterAggregate, RamFilterAggregate does.
The filter retrieves metadata from the database for every host and can creates a performance impact if we have several hosts.

** Affects: nova
     Importance: Medium
     Assignee: sahid (sahid-ferdjaoui)
         Status: New


** Tags: scheduler

** Changed in: nova
     Assignee: (unassigned) => sahid (sahid-ferdjaoui)

** Description changed:

  During a scheduling if we use filter that needs to get data from aggregates like CoreFilterAggregate, RamFilterAggregate does.
- The filter retrieves metadata from the database for every host and can create a performance impact if we have several hosts.
+ The filter retrieves metadata from the database for every host and can creates a performance impact if we have several hosts.

** Tags added: scheduler

** Changed in: nova
   Importance: Undecided => Medium

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https://bugs.launchpad.net/bugs/1300775

Title:
  Scheduler, performance impact when dealing with aggregates

Status in OpenStack Compute (Nova):
  New

Bug description:
  During a scheduling if we use filter that needs to get data from aggregates like CoreFilterAggregate, RamFilterAggregate does.
  The filter retrieves metadata from the database for every host and can creates a performance impact if we have several hosts.

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