Updated openstack/openstack
Project: openstack/oslo.messaging  abfa7ff5e979fbd8821e8e237cebc9804becd53e
null
Fix duplicate topic messages for Qpid topology=2

Manually applied ef406a21782134aeefb944f74b3f1a47d6169318 from
oslo-incubator to get the fix required for bug 1257293.

Copying the original commit message from oslo-incubator below.

"""
When multiple RPC servers (consumers) are subscribed to the same RPC
topic, a single RPC request to that topic should be received by only
one of the consumers.  A bug in the QPID driver caused every consumer
to receive a copy of the RPC request.  This bug affects only Topology
version 2.  This patch will cause a single queue to be created for
each topic, and shared among all consumers of that topic.  This
results in each RPC request being received by only one consumer,
in turn across all the competing consumers.
"""

Change-Id: I76bfa5b48bad4a70fbf06b74f4cc8234af6610c2
Closes-bug: #1257293.