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[Mario Sommer <mario.sommer@xxxxxxxxxxxx>]

Public bug reported:

After upgrade to ocata the n-api process is having a very high load on an more or less "idle" cloud. No matter how many CPU cores or api workers, there is always one neutron server process at 100% CPU usage. This process seems to do constant mysql queries.
In debug log there are many "Checking segment" messages. 
http://paste.openstack.org/show/627415/

The agents time out with 
"Failed reporting state!" "MessagingTimeout: Timed out waiting for a reply to message"
http://paste.openstack.org/show/627414/

** Affects: neutron
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1734623

Title:
  neutron api serverhigh load after upgrade to ocata

Status in neutron:
  New

Bug description:
  After upgrade to ocata the n-api process is having a very high load on an more or less "idle" cloud. No matter how many CPU cores or api workers, there is always one neutron server process at 100% CPU usage. This process seems to do constant mysql queries.
  In debug log there are many "Checking segment" messages. 
  http://paste.openstack.org/show/627415/

  The agents time out with 
  "Failed reporting state!" "MessagingTimeout: Timed out waiting for a reply to message"
  http://paste.openstack.org/show/627414/

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