2018-02-16T12:49:55,708 | WARN | qtp1606264771-2640 | AbstractTranscriberInterface | 372 - org.opendaylight.neutron.transcriber - 0.10.0.SNAPSHOT | Got OptimisticLockFailedException - NeutronPort [portUUID=638f9129-b184-43f8-b2d5-8b8d479ea716, networkUUID=acdeb33c-40d4-4938-bf24-8bd46cfffd84, name=, adminStateUp=true, status=ACTIVE, macAddress=fa:16:3e:86:7a:92, fixedIps=[NeutronIps\{ipAddress='10.20.20.1', subnetUUID='9ab6fa84-476d-4006-956b-02c6f2ab6b75'}], deviceID=cfaa8263-f266-4d52-b04e-ff0f2179cef0, deviceOwner=network:router_interface, tenantID=98bde979a1724201b6a91b3ee20430b0, securityGroups=[], allowedAddressPairs[], bindinghostID=, bindingvnicType=normal, bindingvifType=unbound, vifDetails={}, bindingProfile=, extraDHCPOptions=null, portSecurityEnabled=false, qosPolicyId=null] -1 2018-02-16T12:49:55,707 | ERROR | opendaylight-cluster-data-akka.actor.default-dispatcher-40 | LocalThreePhaseCommitCohort | 230 - org.opendaylight.controller.sal-distributed-datastore - 1.7.0.SNAPSHOT | Failed to prepare transaction member-1-datastore-config-fe-0-txn-143108-0 on backend org.opendaylight.controller.md.sal.common.api.data.OptimisticLockFailedException: Optimistic lock failed. at org.opendaylight.controller.cluster.datastore.ShardDataTree.lambda$processNextPendingTransaction$0(ShardDataTree.java:740) ~[230:org.opendaylight.controller.sal-distributed-datastore:1.7.0.SNAPSHOT] at org.opendaylight.controller.cluster.datastore.ShardDataTree.processNextPending(ShardDataTree.java:778) [230:org.opendaylight.controller.sal-distributed-datastore:1.7.0.SNAPSHOT]