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[Bug 1505342] [NEW] n-cond throws exception while starting

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Devdatta Kulkarni <devdatta.kulkarni@xxxxxxxxxxxxx>
Date: Mon, 12 Oct 2015 18:35:22 -0000
Reply-to: Bug 1505342 <1505342@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx
Public bug reported:

Seeing following error on n-cond screen in devstack.

015-10-12 18:15:12.833 INFO oslo.messaging._drivers.impl_rabbit [-] Connecting to AMQP server on 10.0.2.15:5672
2015-10-12 18:15:12.844 INFO oslo.messaging._drivers.impl_rabbit [-] Connected to AMQP server on 10.0.2.15:5672
2015-10-12 18:15:12.845 ERROR oslo_messaging._drivers.common [-] Returning exception Endpoint does not support RPC version 2.0. Attempted method: object_action to caller
2015-10-12 18:15:12.846 ERROR oslo_messaging._drivers.common [-] ['Traceback (most recent call last):\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply\n    executor_callback))\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch\n    raise UnsupportedVersion(version, method=method)\n', 'UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action\n']
2015-10-12 18:15:22.826 ERROR oslo_messaging.rpc.dispatcher [-] Exception during message handling: Endpoint does not support RPC version 2.0. Attempted method: object_action
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher Traceback (most recent call last):
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher     executor_callback))
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher     raise UnsupportedVersion(version, method=method)
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action
2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher 
2015-10-12 18:15:22.828 ERROR oslo_messaging._drivers.common [-] Returning exception Endpoint does not support RPC version 2.0. Attempted method: object_action to caller
2015-10-12 18:15:22.829 ERROR oslo_messaging._drivers.common [-] ['Traceback (most recent call last):\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply\n    executor_callback))\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch\n    raise UnsupportedVersion(version, method=method)\n', 'UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action\n']


nova commit: 02b7e64b29dd707c637ea7026d337e5cb196f337

devstack commit: b2b82a0f34d84ecf5329703bf6e63c89272ef2da

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1505342

Title:
  n-cond throws exception while starting

Status in OpenStack Compute (nova):
  New

Bug description:
  Seeing following error on n-cond screen in devstack.

  015-10-12 18:15:12.833 INFO oslo.messaging._drivers.impl_rabbit [-] Connecting to AMQP server on 10.0.2.15:5672
  2015-10-12 18:15:12.844 INFO oslo.messaging._drivers.impl_rabbit [-] Connected to AMQP server on 10.0.2.15:5672
  2015-10-12 18:15:12.845 ERROR oslo_messaging._drivers.common [-] Returning exception Endpoint does not support RPC version 2.0. Attempted method: object_action to caller
  2015-10-12 18:15:12.846 ERROR oslo_messaging._drivers.common [-] ['Traceback (most recent call last):\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply\n    executor_callback))\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch\n    raise UnsupportedVersion(version, method=method)\n', 'UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action\n']
  2015-10-12 18:15:22.826 ERROR oslo_messaging.rpc.dispatcher [-] Exception during message handling: Endpoint does not support RPC version 2.0. Attempted method: object_action
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher Traceback (most recent call last):
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher     executor_callback))
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher   File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher     raise UnsupportedVersion(version, method=method)
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action
  2015-10-12 18:15:22.826 TRACE oslo_messaging.rpc.dispatcher 
  2015-10-12 18:15:22.828 ERROR oslo_messaging._drivers.common [-] Returning exception Endpoint does not support RPC version 2.0. Attempted method: object_action to caller
  2015-10-12 18:15:22.829 ERROR oslo_messaging._drivers.common [-] ['Traceback (most recent call last):\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 142, in _dispatch_and_reply\n    executor_callback))\n', '  File "/usr/local/lib/python2.7/dist-packages/oslo_messaging/rpc/dispatcher.py", line 195, in _dispatch\n    raise UnsupportedVersion(version, method=method)\n', 'UnsupportedVersion: Endpoint does not support RPC version 2.0. Attempted method: object_action\n']

  
  nova commit: 02b7e64b29dd707c637ea7026d337e5cb196f337

  devstack commit: b2b82a0f34d84ecf5329703bf6e63c89272ef2da

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Follow ups

[Bug 1505342] Re: n-cond throws exception while starting
From: Launchpad Bug Tracker, 2015-12-13