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[Sean Dague <sean@xxxxxxxxx>]

I think this really is an olso.messaging bug, these things are mostly
left up to that lib at this point

** Also affects: oslo.messaging
   Importance: Undecided
       Status: New

** Changed in: nova
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1368917

Title:
  rpc core should abort a call() early if the connection is terminated
  before the timeout period expires

Status in OpenStack Compute (Nova):
  Invalid
Status in Messaging API for OpenStack:
  New

Bug description:
  As it stands, if a client issuing an RPC call() sends a message to the
  rabbitmq server, then the rabbitmq server does a failover the client
  will wait for the full RPC timeout period (60 seconds) even though new
  rabbitmq server has come up long before then and some connections have
  been reestablished.

  The RPC core should notice that the server has gone away and should
  notify any entities waiting for an RPC call() response so that they
  can error out early rather than waiting for the full RPC timeout
  period.

  This was detected on Havana, but it seems to apply to all other
  versions as well.

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