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The affinity and anti-affinity server group policy is enforced by the scheduler but two parallel scheduling could cause that such policy is violated. During instance boot a late policy check was performed in the compute manager to prevent this. This check was missing in case of rebuild. Therefore two parallel evacuate command could cause that the server group policy is violated. This patch introduces the late policy check to rebuild to prevent such situation. When the violation is detected during boot a re-scheduling happens. However the rebuild action does not have the re-scheduling implementation so in this case the rebuild will fail and the evacuation needs to be retried by the user. Still this is better than allowing a parallel evacuation to break the server group affinity policy. To make the late policy check possible in the compute/manager the rebuild_instance compute RPC call was extended with a request_spec parameter. Co-Authored-By: Richard Zsarnoczai <email@example.com> Change-Id: I752617066bb2167b49239ab9d17b0c89754a3e12 Closes-Bug: #1735407
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|tasks||5 years ago|
|__init__.py||8 years ago|
|test_conductor.py||5 years ago|