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[Rodolfo Alonso <1922934@xxxxxxxxxxxxxxxxxx>]

** Changed in: neutron
       Status: In Progress => Fix Released

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https://bugs.launchpad.net/bugs/1922934

Title:
  [OVN] LSP register race condition with two controllers

Status in neutron:
  Fix Released

Bug description:
  A race condition between two Neutron controller happened during the
  creation and the binding of a port. This problem happened when one
  Neutron controller received the port creation command. The controller
  added this new LSP to the OVN database.

  But the second controller does not receive the OVN database update and
  does not update the local database cache (in the IDL instance). That
  means, one second after the port creation done in the first
  controller, the second controller does not find the LSP.

  Nova error: http://paste.openstack.org/show/804261/
  First Neutron controller adding the port: http://paste.openstack.org/show/804262/
  Second Neutron controller failing to find the port: http://paste.openstack.org/show/804263/

  As seen in the logs, the second controller did not receive the
  transaction update adding the LSP.

  Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1946262

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