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[Thierry Carrez <thierry.carrez+lp@xxxxxxxxx>]

** Changed in: neutron
       Status: Fix Committed => Fix Released

** Changed in: neutron
    Milestone: None => kilo-1

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https://bugs.launchpad.net/bugs/1385257

Title:
  Scary "Cannot add or update a child row: a foreign key constraint
  fails" ERROR

Status in OpenStack Neutron (virtual network service):
  Fix Released

Bug description:
  I see similar message in non dvr setups as mentioned in #1371696.

  http://logstash.openstack.org/#eyJzZWFyY2giOiJtZXNzYWdlOlwiQ2Fubm90IGFkZCBvciB1cGRhdGUgYSBjaGlsZCByb3dcXDogYSBmb3JlaWduIGtleSBjb25zdHJhaW50IGZhaWxzXCIiLCJmaWVsZHMiOltdLCJvZmZzZXQiOjAsInRpbWVmcmFtZSI6IjYwNDgwMCIsImdyYXBobW9kZSI6ImNvdW50IiwidGltZSI6eyJ1c2VyX2ludGVydmFsIjowfSwic3RhbXAiOjE0MTQxNTQ0NTgzNDcsIm1vZGUiOiIiLCJhbmFseXplX2ZpZWxkIjoiIn0=

  
  2014-10-24 12:01:09.517 1409 TRACE neutron.agent.l3_agent RemoteError: Remote error: DBReferenceError (IntegrityError) (1452, 'Cannot add or update a child row: a foreign key constraint fails (`neutron`.`routerl3agentbindings`, CONSTRAINT `routerl3agentbindings_ibfk_2` FOREIGN KEY (`router_id`) REFERENCES `routers` (`id`) ON DELETE CASCADE)') 'INSERT INTO routerl3agentbindings (router_id, l3_agent_id) VALUES (%s, %s)' ('63e69dd6-2964-42a2-ad67-9e7048c044e8', '24b9520c-0543-4968-9b2c-f4e86c5d26e4')

  The ERROR most likely harmless, but very annoying when searching for a real issue.
  Only a shorter message with lower error level (DEBUG)  should be logged on a concurrent delete event.

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