[BGPCEP-878] BGP does not reconnect after partitioned cluster heals

Sat, 14 Dec 2019 02:21:25 +0000
Steps are as follows:
3-node cluster, bgp and open-config shard local
bgp connection to node1
node1 gets isolated from node2 and node3
bgp connection drops
isolation is removed and node1 rejoins cluster
bgp connection never gets reestablished
below NPE is seen in karaf.log
2019-08-20T19:35:34,739 | INFO  | opendaylight-cluster-data-shard-dispatcher-46 | ShardManager                     | 282 - org.opendaylight.controller.sal-distributed-datastore - 1.8.1 | shard-manager-operational Received follower initial sync status for member-1-shard-default-operational status sync done true
2019-08-20T19:35:34,748 | WARN  | opendaylight-cluster-data-akka.actor.default-dispatcher-52 | ClusterSingletonServiceGroupImpl | 335 - org.opendaylight.mdsal.singleton-dom-impl - 2.5.1 | Service group bgp-rib-service-group service org.opendaylight.protocol.bgp.rib.impl.config.BGPClusterSingletonService@17397d1 failed to start, attempting to continue
java.lang.NullPointerException: null
        at org.opendaylight.protocol.bgp.rib.impl.AdjRibInWriter.transform(AdjRibInWriter.java:149) ~[223:org.opendaylight.bgpcep.bgp-rib-impl:0.10.1]
        at org.opendaylight.protocol.bgp.rib.impl.ApplicationPeer.instantiateServiceInstance(ApplicationPeer.java:154) ~[223:org.opendaylight.bgpcep.bgp-rib-impl:0.10.1]
        at org.opendaylight.protocol.bgp.rib.impl.config.AppPeer$BgpAppPeerSingletonService.instantiateServiceInstance(AppPeer.java:135) ~[223:org.opendaylight.bgpcep.bgp-rib-impl:0.10.1]
        at org.opendaylight.protocol.bgp.rib.impl.config.AppPeer.instantiateServiceInstance(AppPeer.java:88) ~[223:org.opendaylight.bgpcep.bgp-rib-impl:0.10.1]
        at java.util.HashMap$Values.forEach(HashMap.java:981) [?:?]
        at org.opendaylight.protocol.bgp.rib.impl.config.BGPClusterSingletonService.instantiateServiceInstance(BGPClusterSingletonService.java:98) [223:org.opendaylight.bgpcep.bgp-rib-impl:0.10.1]
        at org.opendaylight.mdsal.singleton.dom.impl.ClusterSingletonServiceGroupImpl.ensureServicesStarting(ClusterSingletonServiceGroupImpl.java:636) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.mdsal.singleton.dom.impl.ClusterSingletonServiceGroupImpl.tryReconcileState(ClusterSingletonServiceGroupImpl.java:563) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.mdsal.singleton.dom.impl.ClusterSingletonServiceGroupImpl.reconcileState(ClusterSingletonServiceGroupImpl.java:458) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.mdsal.singleton.dom.impl.ClusterSingletonServiceGroupImpl.ownershipChanged(ClusterSingletonServiceGroupImpl.java:339) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.mdsal.singleton.dom.impl.AbstractClusterSingletonServiceProviderImpl.ownershipChanged(AbstractClusterSingletonServiceProviderImpl.java:238) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.mdsal.singleton.dom.impl.DOMClusterSingletonServiceProviderImpl.ownershipChanged(DOMClusterSingletonServiceProviderImpl.java:23) [335:org.opendaylight.mdsal.singleton-dom-impl:2.5.1]
        at org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnershipListenerActor.onEntityOwnershipChanged(EntityOwnershipListenerActor.java:44) [282:org.opendaylight.controller.sal-distributed-datastore:1.8.1]
        at org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnershipListenerActor.handleReceive(EntityOwnershipListenerActor.java:33) [282:org.opendaylight.controller.sal-distributed-datastore:1.8.1]
        at org.opendaylight.controller.cluster.common.actor.AbstractUntypedActor.onReceive(AbstractUntypedActor.java:38) [274:org.opendaylight.controller.sal-clustering-commons:1.8.1]
        at akka.actor.UntypedActor$$anonfun$receive$1.applyOrElse(UntypedActor.scala:167) [37:com.typesafe.akka.actor:2.5.11]
        at akka.actor.Actor.aroundReceive(Actor.scala:517) [37:com.typesafe.akka.actor:2.5.11]
        at akka.actor.Actor.aroundReceive$(Actor.scala:515) [37:com.typesafe.akka.actor:2.5.11]
        at akka.actor.UntypedActor.aroundReceive(UntypedActor.scala:97) [37:com.typesafe.akka.actor:2.5.11]
        at akka.actor.ActorCell.receiveMessage(ActorCell.scala:590) [37:com.typesafe.akka.actor:2.5.11]
        at akka.actor.ActorCell.invoke(ActorCell.scala:559) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.Mailbox.processMailbox(Mailbox.scala:257) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.Mailbox.run(Mailbox.scala:224) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.Mailbox.exec(Mailbox.scala:234) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.forkjoin.ForkJoinTask.doExec(ForkJoinTask.java:260) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.forkjoin.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1339) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.forkjoin.ForkJoinPool.runWorker(ForkJoinPool.java:1979) [37:com.typesafe.akka.actor:2.5.11]
        at akka.dispatch.forkjoin.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:107) [37:com.typesafe.akka.actor:2.5.11]
OpenDaylight JIRA

[BGPCEP-878] BGP does not reconnect after partitioned cluster heals
