OptimisticLockFailedException from IPv6 service bind and unbind

The following exception was thrown by IPv6 service module during IPv6 service bind and unbind operations. This needs to be avoided during multiple IPv6 service interface binding and unbinding operations.

 

2018-08-13T08:09:10,338 | ERROR | org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port_AsyncClusteredDataTreeChangeListenerBase-DataTreeChangeHandler-0 | AsyncClusteredDataTreeChangeListenerBase | 272 - org.opendaylight.genius.mdsalutil-api - 0.4.3.SNAPSHOT | Thread terminated due to uncaught exception: org.opendaylight.yang.gen.v1.urn.opendaylight.neutron.ports.rev150712.ports.attributes.ports.Port_AsyncClusteredDataTreeChangeListenerBase-DataTreeChangeHandler-0
java.lang.RuntimeException: OptimisticLockFailedException{message=Optimistic lock failed for path /(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-bindings/services-info/services-info[

{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)interface-name=61dcb67d-a8d5-4d43-9d5b-63f202b2a090, (urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode=(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode-ingress}

]/bound-services/bound-services[\{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-priority=7}], errorList=[RpcError [message=Optimistic lock failed for path /(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-bindings/services-info/services-info[\{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)interface-name=61dcb67d-a8d5-4d43-9d5b-63f202b2a090, (urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode=(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode-ingress}]/bound-services/bound-services[\{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-priority=7}], severity=ERROR, errorType=APPLICATION, tag=resource-denied, applicationTag=null, info=null, cause=org.opendaylight.yangtools.yang.data.api.schema.tree.ConflictingModificationAppliedException: Node was replaced by other transaction.]]}
at org.opendaylight.genius.mdsalutil.MDSALUtil.syncWrite(MDSALUtil.java:584) [272:org.opendaylight.genius.mdsalutil-api:0.4.3.SNAPSHOT]
at org.opendaylight.netvirt.ipv6service.utils.Ipv6ServiceUtils.bindIpv6Service(Ipv6ServiceUtils.java:470) [367:org.opendaylight.netvirt.ipv6service-impl:0.6.3.SNAPSHOT]
at org.opendaylight.netvirt.ipv6service.IfMgr.addHostIntf(IfMgr.java:368) [367:org.opendaylight.netvirt.ipv6service-impl:0.6.3.SNAPSHOT]
at org.opendaylight.netvirt.ipv6service.NeutronPortChangeListener.addInterfaceInfo(NeutronPortChangeListener.java:130) [367:org.opendaylight.netvirt.ipv6service-impl:0.6.3.SNAPSHOT]
at org.opendaylight.netvirt.ipv6service.NeutronPortChangeListener.add(NeutronPortChangeListener.java:68) [367:org.opendaylight.netvirt.ipv6service-impl:0.6.3.SNAPSHOT]
at org.opendaylight.netvirt.ipv6service.NeutronPortChangeListener.add(NeutronPortChangeListener.java:30) [367:org.opendaylight.netvirt.ipv6service-impl:0.6.3.SNAPSHOT]
at org.opendaylight.genius.datastoreutils.AsyncClusteredDataTreeChangeListenerBase$DataTreeChangeHandler.run(AsyncClusteredDataTreeChangeListenerBase.java:161) [272:org.opendaylight.genius.mdsalutil-api:0.4.3.SNAPSHOT]
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [?:?]
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [?:?]
at java.lang.Thread.run(Thread.java:748) [?:?]
Caused by: org.opendaylight.controller.md.sal.common.api.data.OptimisticLockFailedException: Optimistic lock failed for path /(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-bindings/services-info/services-info[\{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)interface-name=61dcb67d-a8d5-4d43-9d5b-63f202b2a090, (urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode=(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-mode-ingress}]/bound-services/bound-services[\{(urn:opendaylight:genius:interfacemanager:servicebinding?revision=2016-04-06)service-priority=7}]