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[Bug 856764] Re: RabbitMQ connections lack heartbeat or TCP keepalives

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>
Date: Wed, 14 Aug 2013 11:18:28 -0000
Reply-to: Bug 856764 <856764@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Changed in: oslo
       Status: Fix Released => Triaged

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https://bugs.launchpad.net/bugs/856764

Title:
  RabbitMQ connections lack heartbeat or TCP keepalives

Status in OpenStack Compute (Nova):
  Triaged
Status in Oslo - a Library of Common OpenStack Code:
  Triaged

Bug description:
  There is currently no method built into Nova to keep connections from
  various components into RabbitMQ alive.  As a result, placing a
  stateful firewall (such as a Cisco ASA) between the connection
  can/does result in idle connections being terminated without either
  endpoint being aware.

  This issue can be mitigated a few different ways:

  1. Connections to RabbitMQ set socket options to enable TCP
  keepalives.

  2. Rabbit has heartbeat functionality.  If the client requests
  heartbeats on connection, rabbit server will regularly send messages
  to each connections with the expectation of a response.

  3. Other?

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