Enable testTransactionWithIsolatedLeader() for tell-based protocol
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / test / java / org / opendaylight / controller / cluster / datastore / DistributedDataStoreRemotingIntegrationTest.java
index 60d03a7e69d0dedea952f5b5bbe577399617cb18..323e9d6c5a8b59f7fc29094b01d51c6ee732d5dc 100644 (file)
@@ -8,10 +8,12 @@
 package org.opendaylight.controller.cluster.datastore;
 
 import static org.awaitility.Awaitility.await;
+import static org.hamcrest.CoreMatchers.containsString;
 import static org.hamcrest.CoreMatchers.instanceOf;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.Matchers.equalTo;
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertThrows;
 import static org.junit.Assert.assertTrue;
@@ -100,6 +102,7 @@ import org.opendaylight.controller.md.cluster.datastore.model.PeopleModel;
 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
 import org.opendaylight.mdsal.common.api.LogicalDatastoreType;
+import org.opendaylight.mdsal.common.api.OptimisticLockFailedException;
 import org.opendaylight.mdsal.common.api.TransactionCommitFailedException;
 import org.opendaylight.mdsal.dom.api.DOMDataTreeWriteTransaction;
 import org.opendaylight.mdsal.dom.api.DOMTransactionChain;
@@ -117,6 +120,7 @@ import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
 import org.opendaylight.yangtools.yang.data.api.schema.builder.CollectionNodeBuilder;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.ConflictingModificationAppliedException;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeConfiguration;
 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
@@ -140,7 +144,7 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
     @Parameters(name = "{0}")
     public static Collection<Object[]> data() {
         return Arrays.asList(new Object[][] {
-                { TestDistributedDataStore.class, 7}, { TestClientBackedDataStore.class, 12 }
+                { TestDistributedDataStore.class, 7 }, { TestClientBackedDataStore.class, 12 }
         });
     }
 
@@ -401,21 +405,18 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
         }
     }
 
-    private void assertAskClientMetadata(final FrontendClientMetadata clientMeta) {
+    private static void assertAskClientMetadata(final FrontendClientMetadata clientMeta) {
         // ask based should track no metadata
         assertEquals(List.of(), clientMeta.getCurrentHistories());
     }
 
-    private void assertTellClientMetadata(final FrontendClientMetadata clientMeta, final long lastPurged) {
+    private static void assertTellClientMetadata(final FrontendClientMetadata clientMeta, final long lastPurged) {
         final var iterator = clientMeta.getCurrentHistories().iterator();
         var metadata = iterator.next();
         while (iterator.hasNext() && metadata.getHistoryId() != 1) {
             metadata = iterator.next();
         }
 
-        // FIXME: CONTROLLER-1991: remove this assumption
-        assumeTrue(false);
-
         assertEquals(UnsignedLongBitmap.of(), metadata.getClosedTransactions());
         assertEquals("[[0.." + lastPurged + "]]", metadata.getPurgedTransactions().ranges().toString());
     }
@@ -441,21 +442,17 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
         int numCars = 5;
         for (int i = 0; i < numCars; i++) {
-            writeTx = txChain.newWriteOnlyTransaction();
-            writeTx.close();
+            try (var tx = txChain.newWriteOnlyTransaction()) {
+                // Empty on purpose
+            }
 
             try (var tx = txChain.newReadOnlyTransaction()) {
                 tx.read(CarsModel.BASE_PATH).get();
             }
         }
 
-        writeTx = txChain.newWriteOnlyTransaction();
-        writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
-        writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
-        followerTestKit.doCommit(writeTx.ready());
-
         // wait to let the shard catch up with purged
-        await("Close transaction purge leak test.").atMost(5, TimeUnit.SECONDS)
+        await("wait for purges to settle").atMost(5, TimeUnit.SECONDS)
                 .pollInterval(500, TimeUnit.MILLISECONDS)
                 .untilAsserted(() -> {
                     final var localShard = leaderDistributedDataStore.getActorUtils().findLocalShard("cars")
@@ -466,17 +463,11 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
                     final var clientMeta = frontendMetadata.getClients().get(0);
                     if (leaderDistributedDataStore.getActorUtils().getDatastoreContext().isUseTellBasedProtocol()) {
-                        assertTellClientMetadata(clientMeta, numCars * 2 + 1);
+                        assertTellClientMetadata(clientMeta, numCars * 2);
                     } else {
                         assertAskClientMetadata(clientMeta);
                     }
                 });
-
-        try (var tx = txChain.newReadOnlyTransaction()) {
-            final var body = tx.read(CarsModel.CAR_LIST_PATH).get(5, TimeUnit.SECONDS).orElseThrow().body();
-            assertThat(body, instanceOf(Collection.class));
-            assertEquals(numCars, ((Collection<?>) body).size());
-        }
     }
 
     @Test
@@ -1017,9 +1008,6 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
     @Test
     public void testLeadershipTransferOnShutdown() throws Exception {
-        // FIXME: remove when test passes also for ClientBackedDataStore
-        assumeTrue(DistributedDataStore.class.isAssignableFrom(testParameter));
-
         leaderDatastoreContextBuilder.shardBatchedModificationCount(1);
         followerDatastoreContextBuilder.shardElectionTimeoutFactor(10).customRaftPolicyImplementation(null);
         final String testName = "testLeadershipTransferOnShutdown";
@@ -1042,16 +1030,21 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
             writeTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
             final DOMStoreThreePhaseCommitCohort cohort1 = writeTx.ready();
 
-            IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars",
-                stats -> assertEquals("getTxCohortCacheSize", 1, stats.getTxCohortCacheSize()));
+            final var usesCohorts = DistributedDataStore.class.isAssignableFrom(testParameter);
+            if (usesCohorts) {
+                IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars",
+                    stats -> assertEquals("getTxCohortCacheSize", 1, stats.getTxCohortCacheSize()));
+            }
 
             writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
             final MapEntryNode car = CarsModel.newCarEntry("optima", Uint64.valueOf(20000));
             writeTx.write(CarsModel.newCarPath("optima"), car);
             final DOMStoreThreePhaseCommitCohort cohort2 = writeTx.ready();
 
-            IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars",
-                stats -> assertEquals("getTxCohortCacheSize", 2, stats.getTxCohortCacheSize()));
+            if (usesCohorts) {
+                IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars",
+                    stats -> assertEquals("getTxCohortCacheSize", 2, stats.getTxCohortCacheSize()));
+            }
 
             // Gracefully stop the leader via a Shutdown message.
 
@@ -1083,9 +1076,6 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
     @Test
     public void testTransactionWithIsolatedLeader() throws Exception {
-        // FIXME: CONTROLLER-2018: remove when test passes also for ClientBackedDataStore
-        assumeTrue(DistributedDataStore.class.isAssignableFrom(testParameter));
-
         // Set the isolated leader check interval high so we can control the switch to IsolatedLeader.
         leaderDatastoreContextBuilder.shardIsolatedLeaderCheckIntervalInMillis(10000000);
         final String testName = "testTransactionWithIsolatedLeader";
@@ -1118,9 +1108,24 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
         MemberNode.verifyRaftState(leaderDistributedDataStore, "cars",
             raftState -> assertEquals("getRaftState", "IsolatedLeader", raftState.getRaftState()));
 
-        final var ex = assertThrows(ExecutionException.class,
-            () -> leaderTestKit.doCommit(noShardLeaderWriteTx.ready()));
-        assertEquals(NoShardLeaderException.class, Throwables.getRootCause(ex).getClass());
+        final var noShardLeaderCohort = noShardLeaderWriteTx.ready();
+        final ListenableFuture<Boolean> canCommit;
+
+        // There is difference in behavior here:
+        if (!leaderDistributedDataStore.getActorUtils().getDatastoreContext().isUseTellBasedProtocol()) {
+            // ask-based canCommit() times out and aborts
+            final var ex = assertThrows(ExecutionException.class,
+                () -> leaderTestKit.doCommit(noShardLeaderCohort)).getCause();
+            assertThat(ex, instanceOf(NoShardLeaderException.class));
+            assertThat(ex.getMessage(), containsString(
+                "Shard member-1-shard-cars-testTransactionWithIsolatedLeader currently has no leader."));
+            canCommit = null;
+        } else {
+            // tell-based canCommit() does not have a real timeout and hence continues
+            canCommit = noShardLeaderCohort.canCommit();
+            Uninterruptibles.sleepUninterruptibly(commitTimeout, TimeUnit.SECONDS);
+            assertFalse(canCommit.isDone());
+        }
 
         sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder
                 .shardElectionTimeoutFactor(100));
@@ -1132,6 +1137,19 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
         leaderTestKit.doCommit(preIsolatedLeaderTxCohort);
         leaderTestKit.doCommit(successTxCohort);
+
+        // continuation of tell-based protocol: readied transaction will complete commit, but will report an OLFE
+        if (canCommit != null) {
+            final var ex = assertThrows(ExecutionException.class,
+                () -> canCommit.get(commitTimeout, TimeUnit.SECONDS)).getCause();
+            assertThat(ex, instanceOf(OptimisticLockFailedException.class));
+            assertEquals("Optimistic lock failed for path " + CarsModel.BASE_PATH, ex.getMessage());
+            final var cause = ex.getCause();
+            assertThat(cause, instanceOf(ConflictingModificationAppliedException.class));
+            final var cmae = (ConflictingModificationAppliedException) cause;
+            assertEquals("Node was created by other transaction.", cmae.getMessage());
+            assertEquals(CarsModel.BASE_PATH, cmae.getPath());
+        }
     }
 
     @Test
@@ -1422,14 +1440,10 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
     @Test
     public void testSnapshotOnRootOverwrite() throws Exception {
-        // FIXME: ClientBackedDatastore does not have stable indexes/term, the snapshot index seems to fluctuate
-        assumeTrue(DistributedDataStore.class.isAssignableFrom(testParameter));
-
-        final String testName = "testSnapshotOnRootOverwrite";
-        final String[] shards = {"cars", "default"};
-        initDatastores(testName, "module-shards-default-cars-member1-and-2.conf", shards,
-                leaderDatastoreContextBuilder.snapshotOnRootOverwrite(true),
-                followerDatastoreContextBuilder.snapshotOnRootOverwrite(true));
+        initDatastores("testSnapshotOnRootOverwrite", "module-shards-default-cars-member1-and-2.conf",
+            new String[] {"cars", "default"},
+            leaderDatastoreContextBuilder.snapshotOnRootOverwrite(true),
+            followerDatastoreContextBuilder.snapshotOnRootOverwrite(true));
 
         leaderTestKit.waitForMembersUp("member-2");
         final ContainerNode rootNode = ImmutableContainerNodeBuilder.create()
@@ -1439,6 +1453,9 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
 
         leaderTestKit.testWriteTransaction(leaderDistributedDataStore, YangInstanceIdentifier.empty(), rootNode);
 
+        // FIXME: CONTROLLER-2020: ClientBackedDatastore does not have stable indexes/term,
+        //                         the snapshot index seems to fluctuate
+        assumeTrue(DistributedDataStore.class.isAssignableFrom(testParameter));
         IntegrationTestKit.verifyShardState(leaderDistributedDataStore, "cars",
             state -> assertEquals(1, state.getSnapshotIndex()));
 
@@ -1476,7 +1493,7 @@ public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
         verifySnapshot("member-2-shard-cars-testSnapshotOnRootOverwrite", 12);
     }
 
-    private void verifySnapshot(final String persistenceId, final long lastAppliedIndex) {
+    private static void verifySnapshot(final String persistenceId, final long lastAppliedIndex) {
         await().atMost(5, TimeUnit.SECONDS).untilAsserted(() -> {
                 List<Snapshot> snap = InMemorySnapshotStore.getSnapshots(persistenceId, Snapshot.class);
                 assertEquals(1, snap.size());