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[Maithem <1270196@xxxxxxxxxxxxxxxxxx>]

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

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https://bugs.launchpad.net/bugs/1270196

Title:
  Nova services have duplication of default values for configuration

Status in OpenStack Compute (Nova):
  Invalid

Bug description:
  In nova/service.py, the configuration defaults for the *_listen,
  *_listen_port  are specified both in Opt and while using getattr to
  read the option value-

  self.host = getattr(CONF, '%s_listen' % name, "0.0.0.0")
  self.port = getattr(CONF, '%s_listen_port' % name, 0)
  self.workers = getattr(CONF, '%s_workers' % name, None)

  This is duplication of the default values and might produce
  inconsistent results when someone modified only one of these.

  Another problem in the same code above is that reading an erroneous
  config value (lets say foo_workers) will not fail and will simply give
  a default. This makes it easy for a typo in config to pass silently.

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