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[Balazs Gibizer <balazs.gibizer@xxxxxxxxxxxx>]

Public bug reported:

Both GroupAffinity and GroupAntiAffinity filters are broken. The
scheduler does not respect the filters and schedules the servers against
the policy.

Reproduction steps:
0) Spin up a single node devstack 
1) Add GroupAntiAffinityFilter to  scheduler_default_filters in nova.conf and restart the nova services
2) Boot multiple server with the following command 
nova boot --image cirros-0.3.2-x86_64-uec --flavor 42 --hint group=foo server-1

Expected behaviour:
The second and any further boot should fail with NoValidHostFound exception as anti-affinity policy cannot be fulfilled.

Actual behaviour:
Any number of servers are booted to the same compute node

** Affects: nova
     Importance: Undecided
     Assignee: Balazs Gibizer (balazs-gibizer)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Balazs Gibizer (balazs-gibizer)

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https://bugs.launchpad.net/bugs/1394551

Title:
  Legacy GroupAffinity and GroupAntiAffinity filters are broken

Status in OpenStack Compute (Nova):
  New

Bug description:
  Both GroupAffinity and GroupAntiAffinity filters are broken. The
  scheduler does not respect the filters and schedules the servers
  against the policy.

  Reproduction steps:
  0) Spin up a single node devstack 
  1) Add GroupAntiAffinityFilter to  scheduler_default_filters in nova.conf and restart the nova services
  2) Boot multiple server with the following command 
  nova boot --image cirros-0.3.2-x86_64-uec --flavor 42 --hint group=foo server-1

  Expected behaviour:
  The second and any further boot should fail with NoValidHostFound exception as anti-affinity policy cannot be fulfilled.

  Actual behaviour:
  Any number of servers are booted to the same compute node

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