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[Matt Riedemann <mriedem.os@xxxxxxxxx>]

Public bug reported:

Seen here in the alternate hosts series:

http://logs.openstack.org/58/511358/43/check/openstack-tox-
functional/e642310/job-output.txt.gz#_2017-12-19_00_18_34_585930

2017-12-19 00:18:34.585930 | ubuntu-xenial |     Traceback (most recent call last):
2017-12-19 00:18:34.585992 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming
2017-12-19 00:18:34.586021 | ubuntu-xenial |         res = self.dispatcher.dispatch(message)
2017-12-19 00:18:34.586082 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch
2017-12-19 00:18:34.586114 | ubuntu-xenial |         return self._do_dispatch(endpoint, method, ctxt, args)
2017-12-19 00:18:34.586179 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch
2017-12-19 00:18:34.586207 | ubuntu-xenial |         result = func(ctxt, **new_args)
2017-12-19 00:18:34.586241 | ubuntu-xenial |       File "nova/conductor/manager.py", line 603, in build_instances
2017-12-19 00:18:34.586267 | ubuntu-xenial |         host.allocation_request_version)
2017-12-19 00:18:34.586300 | ubuntu-xenial |       File "nova/scheduler/utils.py", line 800, in claim_resources
2017-12-19 00:18:34.586335 | ubuntu-xenial |         user_id, allocation_request_version=allocation_request_version)
2017-12-19 00:18:34.586370 | ubuntu-xenial |       File "nova/scheduler/client/__init__.py", line 37, in __run_method
2017-12-19 00:18:34.586402 | ubuntu-xenial |         return getattr(self.instance, __name)(*args, **kwargs)
2017-12-19 00:18:34.586435 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 61, in wrapper
2017-12-19 00:18:34.586459 | ubuntu-xenial |         return f(self, *a, **k)
2017-12-19 00:18:34.586493 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 110, in wrapper
2017-12-19 00:18:34.586516 | ubuntu-xenial |         return f(self, *a, **k)
2017-12-19 00:18:34.586552 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 1126, in claim_resources
2017-12-19 00:18:34.586586 | ubuntu-xenial |         payload = _move_operation_alloc_request(current_allocs, ar)
2017-12-19 00:18:34.586625 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 199, in _move_operation_alloc_request
2017-12-19 00:18:34.586657 | ubuntu-xenial |         for a in dest_alloc_req['allocations']) - cur_rp_uuids
2017-12-19 00:18:34.586685 | ubuntu-xenial |     TypeError: string indices must be integers

This is due to using a 1.12 version allocation candidate request bug
_move_operation_alloc_request is expecting the <1.12 format, where
allocations is a list instead of a dict.

I don't know if we should change the calling code to format the
allocation request to the <1.12 format, or make
_move_operation_alloc_request handle both styles (probably better to do
the latter).

** Affects: nova
     Importance: High
         Status: Triaged


** Tags: placement

** Changed in: nova
       Status: New => Triaged

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

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https://bugs.launchpad.net/bugs/1739042

Title:
  _move_operation_alloc_request fails with TypeError when using 1.12
  version allocation request

Status in OpenStack Compute (nova):
  Triaged

Bug description:
  Seen here in the alternate hosts series:

  http://logs.openstack.org/58/511358/43/check/openstack-tox-
  functional/e642310/job-output.txt.gz#_2017-12-19_00_18_34_585930

  2017-12-19 00:18:34.585930 | ubuntu-xenial |     Traceback (most recent call last):
  2017-12-19 00:18:34.585992 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/server.py", line 163, in _process_incoming
  2017-12-19 00:18:34.586021 | ubuntu-xenial |         res = self.dispatcher.dispatch(message)
  2017-12-19 00:18:34.586082 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 220, in dispatch
  2017-12-19 00:18:34.586114 | ubuntu-xenial |         return self._do_dispatch(endpoint, method, ctxt, args)
  2017-12-19 00:18:34.586179 | ubuntu-xenial |       File "/home/zuul/src/git.openstack.org/openstack/nova/.tox/functional/local/lib/python2.7/site-packages/oslo_messaging/rpc/dispatcher.py", line 190, in _do_dispatch
  2017-12-19 00:18:34.586207 | ubuntu-xenial |         result = func(ctxt, **new_args)
  2017-12-19 00:18:34.586241 | ubuntu-xenial |       File "nova/conductor/manager.py", line 603, in build_instances
  2017-12-19 00:18:34.586267 | ubuntu-xenial |         host.allocation_request_version)
  2017-12-19 00:18:34.586300 | ubuntu-xenial |       File "nova/scheduler/utils.py", line 800, in claim_resources
  2017-12-19 00:18:34.586335 | ubuntu-xenial |         user_id, allocation_request_version=allocation_request_version)
  2017-12-19 00:18:34.586370 | ubuntu-xenial |       File "nova/scheduler/client/__init__.py", line 37, in __run_method
  2017-12-19 00:18:34.586402 | ubuntu-xenial |         return getattr(self.instance, __name)(*args, **kwargs)
  2017-12-19 00:18:34.586435 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 61, in wrapper
  2017-12-19 00:18:34.586459 | ubuntu-xenial |         return f(self, *a, **k)
  2017-12-19 00:18:34.586493 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 110, in wrapper
  2017-12-19 00:18:34.586516 | ubuntu-xenial |         return f(self, *a, **k)
  2017-12-19 00:18:34.586552 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 1126, in claim_resources
  2017-12-19 00:18:34.586586 | ubuntu-xenial |         payload = _move_operation_alloc_request(current_allocs, ar)
  2017-12-19 00:18:34.586625 | ubuntu-xenial |       File "nova/scheduler/client/report.py", line 199, in _move_operation_alloc_request
  2017-12-19 00:18:34.586657 | ubuntu-xenial |         for a in dest_alloc_req['allocations']) - cur_rp_uuids
  2017-12-19 00:18:34.586685 | ubuntu-xenial |     TypeError: string indices must be integers

  This is due to using a 1.12 version allocation candidate request bug
  _move_operation_alloc_request is expecting the <1.12 format, where
  allocations is a list instead of a dict.

  I don't know if we should change the calling code to format the
  allocation request to the <1.12 format, or make
  _move_operation_alloc_request handle both styles (probably better to
  do the latter).

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