Could not send notification to notifications

[YAMAMOTO Takashi]

"Could not send notification to notifications" errors started happening today.
probably due to oslo.messaging changes.

2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging Traceback (most recent call last):
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/notify/_impl_messaging.py", line 47, in notify
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging version=self.version)
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/transport.py", line 96, in _send_notification
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging self._driver.send_notification(target, ctxt, message, version)
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/_drivers/amqpdriver.py", line 394, in send_notification
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging envelope=(version == 2.0), notify=True)
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/_drivers/amqpdriver.py", line 355, in _send
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging rpc_amqp.pack_context(msg, context)
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/oslo/messaging/_drivers/amqp.py", line 212, in pack_context
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging context_d = six.iteritems(context.to_dict())
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging File "/usr/local/lib/python2.7/dist-packages/six.py", line 553, in iteritems
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging return iter(d.iteritems(**kw))
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging AttributeError: 'Context' object has no attribute 'iteritems'
2014-06-20 13:00:54.239 TRACE oslo.messaging.notify._impl_messaging

http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOiBcIkNvdWxkIG5vdCBzZW5kIG5vdGlmaWNhdGlvbiB0byBub3RpZmljYXRpb25zXCIiLCJmaWVsZHMiOltdLCJvZmZzZXQiOjAsInRpbWVmcmFtZSI6IjE3MjgwMCIsImdyYXBobW9kZSI6ImNvdW50IiwidGltZSI6eyJ1c2VyX2ludGVydmFsIjowfSwic3RhbXAiOjE0MDMyNDIyNjczOTd9

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/101459

[OpenStack Infra (hudson-openstack)]

Change abandoned by YAMAMOTO Takashi (<email address hidden>) on branch: master
Review: https://review.openstack.org/101459
Reason: i prefer https://review.openstack.org/101485

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/101485
Committed: https://git.openstack.org/cgit/openstack/neutron/commit/?id=48e9c8b79bea9c9a65ceb1c24528a89db6d313d2
Submitter: Jenkins
Branch: master

commit 48e9c8b79bea9c9a65ceb1c24528a89db6d313d2
Author: Ihar Hrachyshka <email address hidden>
Date: Fri Jun 20 13:29:06 2014 +0200

    Pass serializer to oslo.messaging Notifier

    oslo.messaging has a workaround [1] that requires context to be
    transformed to pure dict before passing into amqpdriver.

    Renamed serializer class to reflect its broader usage.

    Updated FakeNotifier to expect serializer and other keyword arguments
    supported by oslo.messaging Notifier class.

    [1]: oslo/messaging/_drivers/amqpdriver.py#L337

    blueprint oslo-messaging

    Closes-Bug: #1332412
    Change-Id: I7e7658d03639afae7bf6d3ad71445cb5b6459c09