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[Ihar Hrachyshka <1257293@xxxxxxxxxxxxxxxxxx>]

** Changed in: oslo-incubator/havana
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1257293

Title:
  [messaging] QPID broadcast RPC requests to all servers for a given
  topic

Status in Ceilometer:
  Fix Released
Status in Ceilometer havana series:
  Fix Released
Status in Cinder:
  Fix Released
Status in Cinder havana series:
  Fix Released
Status in OpenStack Heat:
  Fix Released
Status in OpenStack Heat havana series:
  Fix Released
Status in OpenStack Identity (keystone):
  Fix Released
Status in OpenStack Identity (keystone) havana series:
  Fix Released
Status in neutron:
  Fix Released
Status in neutron havana series:
  Fix Released
Status in OpenStack Compute (nova):
  Fix Released
Status in OpenStack Compute (nova) havana series:
  Fix Released
Status in oslo-incubator:
  Fix Released
Status in oslo-incubator havana series:
  Fix Released
Status in oslo.messaging:
  Fix Released

Bug description:
  According to the oslo.messaging documentation, when a RPC request is
  made to a given topic, and there are multiple servers for that topic,
  only _one_ server should service that RPC request.  See
  http://docs.openstack.org/developer/oslo.messaging/target.html

  "topic (str) – A name which identifies the set of interfaces exposed
  by a server. Multiple servers may listen on a topic and messages will
  be dispatched to one of the servers in a round-robin fashion."

  In the case of a QPID-based deployment using topology version 2, this
  is not the case.  Instead, each listening server gets a copy of the
  RPC and will process it.

  For more detail, see

  https://bugs.launchpad.net/oslo/+bug/1178375/comments/26

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