BUG-5247: Fix Optional.get() on absent return

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / datastore / entityownership / DistributedEntityOwnershipIntegrationTest.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipIntegrationTest.java b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipIntegrationTest.java
index 25a6dc439a14b145db2be8419b295c413b57f222..0b4935734f474089eea1b553b1e27b082dba3349 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipIntegrationTest.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/entityownership/DistributedEntityOwnershipIntegrationTest.java
@@ -22,6 +22,7 @@ import static org.opendaylight.controller.cluster.datastore.entityownership.Abst
 import static org.opendaylight.controller.cluster.datastore.entityownership.DistributedEntityOwnershipService.ENTITY_OWNERSHIP_SHARD_NAME;
 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.CANDIDATE_NAME_NODE_ID;
 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityPath;
+import akka.actor.ActorRef;
 import akka.actor.Status.Failure;
 import akka.actor.Status.Success;
 import akka.cluster.Cluster;
@@ -45,11 +46,14 @@ import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
 import org.opendaylight.controller.cluster.datastore.DatastoreContext;
 import org.opendaylight.controller.cluster.datastore.DistributedDataStore;
+import org.opendaylight.controller.cluster.datastore.IntegrationTestKit;
 import org.opendaylight.controller.cluster.datastore.MemberNode;
 import org.opendaylight.controller.cluster.datastore.MemberNode.RaftStateVerifier;
 import org.opendaylight.controller.cluster.datastore.entityownership.selectionstrategy.EntityOwnerSelectionStrategyConfig;
 import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
+import org.opendaylight.controller.cluster.raft.RaftState;
 import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
+import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
 import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore;
 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
@@ -119,7 +123,7 @@ public class DistributedEntityOwnershipIntegrationTest {
         }
     }
 
-    private DistributedEntityOwnershipService newOwnershipService(DistributedDataStore datastore) {
+    private static DistributedEntityOwnershipService newOwnershipService(DistributedDataStore datastore) {
         DistributedEntityOwnershipService service = new DistributedEntityOwnershipService(datastore,
                 EntityOwnerSelectionStrategyConfig.newBuilder().build());
         service.start();
@@ -259,6 +263,85 @@ public class DistributedEntityOwnershipIntegrationTest {
         verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, false));
     }
 
+    @Test
+    public void testLeaderCandidatesRemovedAfterShutdown() throws Exception {
+        followerDatastoreContextBuilder.shardElectionTimeoutFactor(5).
+                    customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
+
+        String name = "test";
+        MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name ).
+                moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false).
+                datastoreContextBuilder(leaderDatastoreContextBuilder).build();
+
+        MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name ).
+                moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false).
+                datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+        MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name ).
+                moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false).
+                datastoreContextBuilder(followerDatastoreContextBuilder).build();
+
+        DistributedDataStore leaderDistributedDataStore = leaderNode.configDataStore();
+
+        leaderDistributedDataStore.waitTillReady();
+        follower1Node.configDataStore().waitTillReady();
+        follower2Node.configDataStore().waitTillReady();
+
+        EntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
+        EntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore());
+        EntityOwnershipService follower2EntityOwnershipService = newOwnershipService(follower2Node.configDataStore());
+
+        leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
+
+        // Register follower1 candidate for entity1 and verify it becomes owner
+
+        follower1EntityOwnershipService.registerCandidate(ENTITY1);
+        verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+        // Register leader candidate for entity1
+
+        leaderEntityOwnershipService.registerCandidate(ENTITY1);
+        verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
+        verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
+
+        // Register leader candidate for entity2 and verify it becomes owner
+
+        leaderEntityOwnershipService.registerCandidate(ENTITY2);
+        verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+        // Register follower2 candidate for entity2
+
+        follower2EntityOwnershipService.registerCandidate(ENTITY2);
+        verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
+        verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
+
+        // Shutdown the leader and verify its removed from the candidate list
+
+        leaderNode.cleanup();
+        follower1Node.waitForMemberDown("member-1");
+
+        // Re-enable elections on folower1 so it becomes the leader
+
+        ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().
+                getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
+        follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build()).
+                customRaftPolicyImplementation(null).build(), ActorRef.noSender());
+
+        MemberNode.verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME, new RaftStateVerifier() {
+            @Override
+            public void verify(OnDemandRaftState raftState) {
+                assertEquals("Raft state", RaftState.Leader.toString(), raftState.getRaftState());
+            }
+        });
+
+        // Verify the prior leader's candidates are removed
+
+        verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2");
+        verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-3");
+        verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
+        verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
+    }
+
     /**
      * Reproduces bug <a href="https://bugs.opendaylight.org/show_bug.cgi?id=4554">4554</a>
      *
@@ -317,8 +400,11 @@ public class DistributedEntityOwnershipIntegrationTest {
         boolean passed = false;
         for(int i=0;i<100;i++) {
             Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
-            if(!leaderEntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() &&
+            if(!leaderEntityOwnershipService.getOwnershipState(ENTITY1).isPresent() ||
+                    !leaderEntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() &&
+                    follower1EntityOwnershipService.getOwnershipState(ENTITY1).isPresent() &&
                     !follower1EntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() &&
+                    follower2EntityOwnershipService.getOwnershipState(ENTITY1).isPresent() &&
                     !follower2EntityOwnershipService.getOwnershipState(ENTITY1).get().hasOwner() &&
                     leaderChangeCaptor.getAllValues().size() > 0 && !leaderChangeCaptor.getValue().hasOwner() &&
                     leaderChangeCaptor.getAllValues().size() > 0 && !follower1ChangeCaptor.getValue().hasOwner() &&
@@ -417,7 +503,7 @@ public class DistributedEntityOwnershipIntegrationTest {
     private static void verifyCandidates(DistributedDataStore dataStore, Entity entity, String... expCandidates) throws Exception {
         AssertionError lastError = null;
         Stopwatch sw = Stopwatch.createStarted();
-        while(sw.elapsed(TimeUnit.MILLISECONDS) <= 5000) {
+        while(sw.elapsed(TimeUnit.MILLISECONDS) <= 10000) {
             Optional<NormalizedNode<?, ?>> possible = dataStore.newReadOnlyTransaction().read(
                     entityPath(entity.getType(), entity.getId()).node(Candidate.QNAME)).get(5, TimeUnit.SECONDS);
             try {