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[Roman Podoliaka <rpodolyaka+bugs@xxxxxxxxxxxx>]

Public bug reported:

If _report_state() method
(https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L85-L111)
of ServiceGroup DB driver fails remotely in nova-conductor, it will
effectively break the service state reporting thread
(https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L54-L57)
- this nova service will be considered as 'down' until it's *restarted*.

An example of such remote failure in nova-conductor would be a temporary
DB issue, e.g. http://paste.openstack.org/show/479104/

This seems to be a regression introduced in
https://github.com/openstack/nova/commit/3bc171202163a3810fdc9bdb3bad600487625443

** Affects: nova
     Importance: Undecided
     Assignee: Roman Podoliaka (rpodolyaka)
         Status: New

** Changed in: nova
     Assignee: (unassigned) => Roman Podoliaka (rpodolyaka)

** Description changed:

  If _report_state() method
  (https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L85-L111)
  of ServiceGroup DB driver fails remotely in nova-conductor, it will
  effectively break the service state reporting thread
  (https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L54-L57)
- - this nova service will be considered as 'down' until it's restarted.
+ - this nova service will be considered as 'down' until it's *restarted*.
  
  An example of such remote failure in nova-conductor would be a temporary
  DB issue, e.g. http://paste.openstack.org/show/479104/
  
  This seems to be a regression introduced in
  https://github.com/openstack/nova/commit/3bc171202163a3810fdc9bdb3bad600487625443

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https://bugs.launchpad.net/bugs/1517926

Title:
  Nova services stop to report state via remote conductor

Status in OpenStack Compute (nova):
  New

Bug description:
  If _report_state() method
  (https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L85-L111)
  of ServiceGroup DB driver fails remotely in nova-conductor, it will
  effectively break the service state reporting thread
  (https://github.com/openstack/nova/blob/master/nova/servicegroup/drivers/db.py#L54-L57)
  - this nova service will be considered as 'down' until it's
  *restarted*.

  An example of such remote failure in nova-conductor would be a
  temporary DB issue, e.g. http://paste.openstack.org/show/479104/

  This seems to be a regression introduced in
  https://github.com/openstack/nova/commit/3bc171202163a3810fdc9bdb3bad600487625443

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