openstack/openstack
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* Update nova from branch 'master'
  - Merge "Sanity check instance mapping during scheduling"
  - Sanity check instance mapping during scheduling
    
    mnaser reported a weird case where an instance was found
    in both cell0 (deleted there) and in cell1 (not deleted
    there but in error state from a failed build). It's unclear
    how this could happen besides some weird clustered rabbitmq
    issue where maybe the schedule and build request to conductor
    happens twice for the same instance and one picks a host and
    tries to build and the other fails during scheduling and is
    buried in cell0.
    
    To avoid a split brain situation like this, we add a sanity
    check in _bury_in_cell0 to make sure the instance mapping is
    not pointing at a cell when we go to update it to cell0.
    Similarly a check is added in the schedule_and_build_instances
    flow (the code is moved to a private method to make it easier
    to test).
    
    Worst case is this is unnecessary but doesn't hurt anything,
    best case is this helps avoid split brain clustered rabbit
    issues.
    
    Change-Id: I335113f0ec59516cb337d34b6fc9078ea202130f
This commit is contained in:
Zuul 2019-11-28 23:25:35 +00:00 committed by Gerrit Code Review
parent fb0b486975
commit 355544d67c
1 changed files with 1 additions and 1 deletions
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2
nova

@ -1 +1 @@
Subproject commit e0adf82defe75b1b52249e8d0d781dc64e896765
Subproject commit f1382651dc3b7b945b69a2af0bc05aa472f26b28