[Bug 1381972] Re: zmq driver broken with cinder multi-backend

[Ainur Shakirov]

OpenStack Ocata/Cinder 10.0.0: the bug is still exist.

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https://bugs.launchpad.net/bugs/1381972

Title:
  zmq driver broken with cinder multi-backend

Status in oslo.messaging:
  Won't Fix
Status in oslo.messaging package in Ubuntu:
  Won't Fix

Bug description:
  The cinder-scheduler service resolves the host to send messages to as:

    juju-jpos-machine-5 at cinder-ceph

  This results in a tcp connection being opened to a non-existant host:

  2014-10-16 09:51:07.086 12389 DEBUG oslo.messaging._drivers.impl_zmq [-] Connecting to tcp://juju-jpos-machine-5@cinder-ceph:9501 with PUSH __init__ /usr/lib/python2.7/dist-packages/oslo/messaging/_drivers/impl_zmq.py:145
  2014-10-16 09:51:07.087 12389 DEBUG oslo.messaging._drivers.impl_zmq [-] -> Subscribed to None __init__ /usr/lib/python2.7/dist-packages/oslo/messaging/_drivers/impl_zmq.py:146
  2014-10-16 09:51:07.088 12389 DEBUG oslo.messaging._drivers.impl_zmq [-] -> bind: False __init__ /usr/lib/python2.7/dist-packages/oslo/messaging/_drivers/impl_zmq.py:147

  and no message ever being sent - the volume sticks in creating state.

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