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[Launchpad Bug Tracker <1689023@xxxxxxxxxxxxxxxxxx>]

[Expired for OpenStack Compute (nova) because there has been no activity
for 60 days.]

** Changed in: nova
       Status: Incomplete => Expired

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https://bugs.launchpad.net/bugs/1689023

Title:
  PostgreSQL fails with Ocata Nova-API on CentOS 7.2

Status in OpenStack Compute (nova):
  Expired

Bug description:
  Hi all:
  I'm now trying to install an Openstack Ocata on a CentOS 7.2 Host,with PostgreSQL 9.2.18 el7 as the backend database.Following the offical installation Guide of Ocata.

  1、Keystone is successfully deployed on the controller node.
  2、Glance is successfully deployed on the controller node.
  3、Nova is successfuly deployed on the controller node.

  After Check all NOVA-Service is active and running, before continuing
  deploy nova on compute node,i typed the “openstack compute service
  list” command, i got an error return as following:

  [root@controller ~(keystone_admin)]# openstack compute service list
  Unexpected API Error. Please report this at http://bugs.launchpad.net/nova/ and attach the Nova API log if possible.
  <class 'sqlalchemy.exc.OperationalError'> (HTTP 500) (Request-ID: req-41ec69a5-28cf-4b00-8ec9-d4aad3d83481)

  When i check the nova-api.log,i found although the nova-api service is
  active and running,there is always an database connection fail error
  from the very beginning after i started the nova-api service.The error
  log is in the attachment:

  2017-05-07 05:47:07.789 2311 ERROR oslo_service.service
  OperationalError: (psycopg2.OperationalError) asynchronous connection
  failed

  
  Is there any solution now?

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