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

To: yahoo-eng-team@xxxxxxxxxxxxxxxxxxx
From: Bogdan Dobrelya <bdobrelia@xxxxxxxxxxxx>
Date: Mon, 26 May 2014 08:58:25 -0000
Reply-to: Bug 856764 <856764@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: ceilometer
   Importance: Undecided
       Status: New

** Changed in: ceilometer
       Status: New => Confirmed

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

Title:
  RabbitMQ connections lack heartbeat or TCP keepalives

Status in OpenStack Telemetry (Ceilometer):
  Confirmed
Status in Orchestration API (Heat):
  Confirmed
Status in OpenStack Neutron (virtual network service):
  Confirmed
Status in OpenStack Compute (Nova):
  Invalid
Status in Oslo - a Library of Common OpenStack Code:
  Triaged
Status in Messaging API for OpenStack:
  In Progress

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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