Public bug reported:

Description
===========

In nova.conf, osapi_compute_listen and metadata_listen are defaulted to 
0.0.0.0. Due to this when multiple n-api nodes are setup in a multinode 
environment, only one entry is
created for nova-osapi_compute and nova-metadata services in nova.services 
table.

This doesn't have any effect when n-api's on both nodes have same version. But 
when n-api on node 1 is upgraded, then n-api on node2 refuses to start due to 
Service version too Old exception.
This behavior can be changed by having two entries for these services in db.

Steps to reproduce
==================

1. Setup multinode devstack environment with all controller services on one 
node and n-api & n-cpu on another node.
2. Now you have two n-api nodes.
3. Check nova.services table.

Expected result
===============

There should be two entries for nova-osapi_compute and nova-metadata
services in nova.services table one for each host.

Actual result
=============

Only one entry created for these services.

** Affects: nova
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1631430

Title:
  Only one entry created for nova-osapi_compute and nova-metadata
  services in multi-n-api environment

Status in OpenStack Compute (nova):
  New

Bug description:
  Description
  ===========

  In nova.conf, osapi_compute_listen and metadata_listen are defaulted to 
0.0.0.0. Due to this when multiple n-api nodes are setup in a multinode 
environment, only one entry is
  created for nova-osapi_compute and nova-metadata services in nova.services 
table.

  This doesn't have any effect when n-api's on both nodes have same version. 
But when n-api on node 1 is upgraded, then n-api on node2 refuses to start due 
to Service version too Old exception.
  This behavior can be changed by having two entries for these services in db.

  Steps to reproduce
  ==================

  1. Setup multinode devstack environment with all controller services on one 
node and n-api & n-cpu on another node.
  2. Now you have two n-api nodes.
  3. Check nova.services table.

  Expected result
  ===============

  There should be two entries for nova-osapi_compute and nova-metadata
  services in nova.services table one for each host.

  Actual result
  =============

  Only one entry created for these services.

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