opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreRemotingIntegrationTest.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.datastore;
   9
  10 import static org.junit.Assert.assertEquals;
  11 import static org.junit.Assert.assertNotNull;
  12 import static org.junit.Assert.assertTrue;
  13 import static org.junit.Assert.fail;
  14 import static org.mockito.Matchers.any;
  15 import static org.mockito.Matchers.eq;
  16 import static org.mockito.Mockito.timeout;
  17 import static org.mockito.Mockito.verify;
  18 import akka.actor.ActorRef;
  19 import akka.actor.ActorSystem;
  20 import akka.actor.Address;
  21 import akka.actor.AddressFromURIString;
  22 import akka.cluster.Cluster;
  23 import akka.pattern.AskTimeoutException;
  24 import akka.testkit.JavaTestKit;
  25 import com.google.common.base.Optional;
  26 import com.google.common.collect.ImmutableMap;
  27 import com.google.common.util.concurrent.MoreExecutors;
  28 import com.google.common.util.concurrent.Uninterruptibles;
  29 import com.typesafe.config.ConfigFactory;
  30 import java.math.BigInteger;
  31 import java.util.concurrent.ExecutionException;
  32 import java.util.concurrent.TimeUnit;
  33 import org.junit.After;
  34 import org.junit.Before;
  35 import org.junit.Test;
  36 import org.mockito.Mockito;
  37 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  38 import org.opendaylight.controller.cluster.datastore.exceptions.ShardLeaderNotRespondingException;
  39 import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
  40 import org.opendaylight.controller.cluster.datastore.messages.ReadyLocalTransaction;
  41 import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
  42 import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
  43 import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
  44 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
  45 import org.opendaylight.controller.md.cluster.datastore.model.CarsModel;
  46 import org.opendaylight.controller.md.cluster.datastore.model.PeopleModel;
  47 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
  48 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
  49 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
  50 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
  51 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  52 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  53 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
  54 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  55 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  56 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  57 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  58 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  59 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  60 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  61 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
  62 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
  63 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
  64 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  65 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
  66 import org.opendaylight.yangtools.yang.data.api.schema.tree.TipProducingDataTree;
  67 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
  68 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
  69 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
  70 import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
  71
  72 /**
  73  * End-to-end distributed data store tests that exercise remote shards and transactions.
  74  *
  75  * @author Thomas Pantelis
  76  */
  77 public class DistributedDataStoreRemotingIntegrationTest {
  78
  79     private static final String[] SHARD_NAMES = {"cars", "people"};
  80
  81     private static final Address MEMBER_1_ADDRESS = AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558");
  82     private static final Address MEMBER_2_ADDRESS = AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2559");
  83
  84     private static final String MODULE_SHARDS_CONFIG_2 = "module-shards-member1-and-2.conf";
  85     private static final String MODULE_SHARDS_CONFIG_3 = "module-shards-member1-and-2-and-3.conf";
  86
  87     private ActorSystem leaderSystem;
  88     private ActorSystem followerSystem;
  89     private ActorSystem follower2System;
  90
  91     private final DatastoreContext.Builder leaderDatastoreContextBuilder =
  92             DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(1);
  93
  94     private final DatastoreContext.Builder followerDatastoreContextBuilder =
  95             DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
  96
  97     private DistributedDataStore followerDistributedDataStore;
  98     private DistributedDataStore leaderDistributedDataStore;
  99     private IntegrationTestKit followerTestKit;
 100     private IntegrationTestKit leaderTestKit;
 101
 102     @Before
 103     public void setUp() {
 104         leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 105         Cluster.get(leaderSystem).join(MEMBER_1_ADDRESS);
 106
 107         followerSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
 108         Cluster.get(followerSystem).join(MEMBER_1_ADDRESS);
 109
 110         follower2System = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member3"));
 111         Cluster.get(follower2System).join(MEMBER_1_ADDRESS);
 112     }
 113
 114     @After
 115     public void tearDown() {
 116         JavaTestKit.shutdownActorSystem(leaderSystem);
 117         JavaTestKit.shutdownActorSystem(followerSystem);
 118         JavaTestKit.shutdownActorSystem(follower2System);
 119     }
 120
 121     private void initDatastores(String type) {
 122         initDatastores(type, MODULE_SHARDS_CONFIG_2);
 123     }
 124
 125     private void initDatastores(String type, String moduleShardsConfig) {
 126         leaderTestKit = new IntegrationTestKit(leaderSystem, leaderDatastoreContextBuilder);
 127
 128         leaderDistributedDataStore = leaderTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, SHARD_NAMES);
 129
 130         followerTestKit = new IntegrationTestKit(followerSystem, followerDatastoreContextBuilder);
 131         followerDistributedDataStore = followerTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, SHARD_NAMES);
 132
 133         leaderTestKit.waitUntilLeader(leaderDistributedDataStore.getActorContext(), SHARD_NAMES);
 134     }
 135
 136     private void verifyCars(DOMStoreReadTransaction readTx, MapEntryNode... entries) throws Exception {
 137         Optional<NormalizedNode<?, ?>> optional = readTx.read(CarsModel.CAR_LIST_PATH).get(5, TimeUnit.SECONDS);
 138         assertEquals("isPresent", true, optional.isPresent());
 139
 140         CollectionNodeBuilder<MapEntryNode, MapNode> listBuilder = ImmutableNodes.mapNodeBuilder(CarsModel.CAR_QNAME);
 141         for(NormalizedNode<?, ?> entry: entries) {
 142             listBuilder.withChild((MapEntryNode) entry);
 143         }
 144
 145         assertEquals("Car list node", listBuilder.build(), optional.get());
 146     }
 147
 148     private void verifyNode(DOMStoreReadTransaction readTx, YangInstanceIdentifier path, NormalizedNode<?, ?> expNode)
 149             throws Exception {
 150         Optional<NormalizedNode<?, ?>> optional = readTx.read(path).get(5, TimeUnit.SECONDS);
 151         assertEquals("isPresent", true, optional.isPresent());
 152         assertEquals("Data node", expNode, optional.get());
 153     }
 154
 155     private void verifyExists(DOMStoreReadTransaction readTx, YangInstanceIdentifier path) throws Exception {
 156         Boolean exists = readTx.exists(path).get(5, TimeUnit.SECONDS);
 157         assertEquals("exists", true, exists);
 158     }
 159
 160     @Test
 161     public void testWriteTransactionWithSingleShard() throws Exception {
 162         String testName = "testWriteTransactionWithSingleShard";
 163         initDatastores(testName);
 164
 165         String followerCarShardName = "member-2-shard-cars-" + testName;
 166         InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 2, ApplyJournalEntries.class );
 167
 168         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
 169         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
 170
 171         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 172         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 173
 174         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 175         YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
 176         writeTx.merge(car1Path, car1);
 177
 178         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
 179         YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
 180         writeTx.merge(car2Path, car2);
 181
 182         followerTestKit.doCommit(writeTx.ready());
 183
 184         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
 185
 186         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
 187
 188         // Test delete
 189
 190         writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
 191
 192         writeTx.delete(car1Path);
 193
 194         followerTestKit.doCommit(writeTx.ready());
 195
 196         verifyExists(followerDistributedDataStore.newReadOnlyTransaction(), car2Path);
 197
 198         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
 199
 200         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car2);
 201
 202         // Re-instate the follower member 2 as a single-node to verify replication and recovery.
 203
 204         InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
 205
 206         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
 207         JavaTestKit.shutdownActorSystem(followerSystem, null, true);
 208
 209         ActorSystem newSystem = ActorSystem.create("reinstated-member2", ConfigFactory.load().getConfig("Member2"));
 210
 211         DistributedDataStore member2Datastore = new IntegrationTestKit(newSystem, leaderDatastoreContextBuilder).
 212                 setupDistributedDataStore(testName, "module-shards-member2", true, SHARD_NAMES);
 213
 214         verifyCars(member2Datastore.newReadOnlyTransaction(), car2);
 215
 216         JavaTestKit.shutdownActorSystem(newSystem);
 217     }
 218
 219     @Test
 220     public void testReadWriteTransactionWithSingleShard() throws Exception {
 221         initDatastores("testReadWriteTransactionWithSingleShard");
 222
 223         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
 224         assertNotNull("newReadWriteTransaction returned null", rwTx);
 225
 226         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 227         rwTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 228
 229         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 230         rwTx.merge(CarsModel.newCarPath("optima"), car1);
 231
 232         verifyCars(rwTx, car1);
 233
 234         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
 235         YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
 236         rwTx.merge(car2Path, car2);
 237
 238         verifyExists(rwTx, car2Path);
 239
 240         followerTestKit.doCommit(rwTx.ready());
 241
 242         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
 243     }
 244
 245     @Test
 246     public void testWriteTransactionWithMultipleShards() throws Exception {
 247         initDatastores("testWriteTransactionWithMultipleShards");
 248
 249         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
 250         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
 251
 252         YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
 253         NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
 254         writeTx.write(carsPath, carsNode);
 255
 256         YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
 257         NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
 258         writeTx.write(peoplePath, peopleNode);
 259
 260         followerTestKit.doCommit(writeTx.ready());
 261
 262         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 263
 264         verifyNode(readTx, carsPath, carsNode);
 265         verifyNode(readTx, peoplePath, peopleNode);
 266     }
 267
 268     @Test
 269     public void testReadWriteTransactionWithMultipleShards() throws Exception {
 270         initDatastores("testReadWriteTransactionWithMultipleShards");
 271
 272         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
 273         assertNotNull("newReadWriteTransaction returned null", rwTx);
 274
 275         YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
 276         NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
 277         rwTx.write(carsPath, carsNode);
 278
 279         YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
 280         NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
 281         rwTx.write(peoplePath, peopleNode);
 282
 283         followerTestKit.doCommit(rwTx.ready());
 284
 285         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 286
 287         verifyNode(readTx, carsPath, carsNode);
 288         verifyNode(readTx, peoplePath, peopleNode);
 289     }
 290
 291     @Test
 292     public void testTransactionChainWithSingleShard() throws Exception {
 293         initDatastores("testTransactionChainWithSingleShard");
 294
 295         DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
 296
 297         // Add the top-level cars container with write-only.
 298
 299         DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
 300         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
 301
 302         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 303
 304         writeTx.ready();
 305
 306         // Verify the top-level cars container with read-only.
 307
 308         verifyNode(txChain.newReadOnlyTransaction(), CarsModel.BASE_PATH, CarsModel.emptyContainer());
 309
 310         // Perform car operations with read-write.
 311
 312         DOMStoreReadWriteTransaction rwTx = txChain.newReadWriteTransaction();
 313
 314         verifyNode(rwTx, CarsModel.BASE_PATH, CarsModel.emptyContainer());
 315
 316         rwTx.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 317
 318         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 319         YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
 320         rwTx.write(car1Path, car1);
 321
 322         verifyExists(rwTx, car1Path);
 323
 324         verifyCars(rwTx, car1);
 325
 326         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
 327         rwTx.merge(CarsModel.newCarPath("sportage"), car2);
 328
 329         rwTx.delete(car1Path);
 330
 331         followerTestKit.doCommit(rwTx.ready());
 332
 333         txChain.close();
 334
 335         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
 336     }
 337
 338     @Test
 339     public void testTransactionChainWithMultipleShards() throws Exception{
 340         initDatastores("testTransactionChainWithMultipleShards");
 341
 342         DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
 343
 344         DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
 345         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
 346
 347         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 348         writeTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
 349
 350         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 351         writeTx.write(PeopleModel.PERSON_LIST_PATH, PeopleModel.newPersonMapNode());
 352
 353         followerTestKit.doCommit(writeTx.ready());
 354
 355         DOMStoreReadWriteTransaction readWriteTx = txChain.newReadWriteTransaction();
 356
 357         MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 358         YangInstanceIdentifier carPath = CarsModel.newCarPath("optima");
 359         readWriteTx.write(carPath, car);
 360
 361         MapEntryNode person = PeopleModel.newPersonEntry("jack");
 362         YangInstanceIdentifier personPath = PeopleModel.newPersonPath("jack");
 363         readWriteTx.merge(personPath, person);
 364
 365         Optional<NormalizedNode<?, ?>> optional = readWriteTx.read(carPath).get(5, TimeUnit.SECONDS);
 366         assertEquals("isPresent", true, optional.isPresent());
 367         assertEquals("Data node", car, optional.get());
 368
 369         optional = readWriteTx.read(personPath).get(5, TimeUnit.SECONDS);
 370         assertEquals("isPresent", true, optional.isPresent());
 371         assertEquals("Data node", person, optional.get());
 372
 373         DOMStoreThreePhaseCommitCohort cohort2 = readWriteTx.ready();
 374
 375         writeTx = txChain.newWriteOnlyTransaction();
 376
 377         writeTx.delete(personPath);
 378
 379         DOMStoreThreePhaseCommitCohort cohort3 = writeTx.ready();
 380
 381         followerTestKit.doCommit(cohort2);
 382         followerTestKit.doCommit(cohort3);
 383
 384         txChain.close();
 385
 386         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 387         verifyCars(readTx, car);
 388
 389         optional = readTx.read(personPath).get(5, TimeUnit.SECONDS);
 390         assertEquals("isPresent", false, optional.isPresent());
 391     }
 392
 393     @Test
 394     public void testChainedTransactionFailureWithSingleShard() throws Exception {
 395         initDatastores("testChainedTransactionFailureWithSingleShard");
 396
 397         ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
 398                 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
 399                         LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
 400                         MoreExecutors.directExecutor());
 401
 402         TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
 403         DOMTransactionChain txChain = broker.createTransactionChain(listener);
 404
 405         DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
 406
 407         ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
 408                 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
 409                     withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
 410
 411         writeTx.merge(LogicalDatastoreType.CONFIGURATION, CarsModel.BASE_PATH, invalidData);
 412
 413         try {
 414             writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
 415             fail("Expected TransactionCommitFailedException");
 416         } catch (TransactionCommitFailedException e) {
 417             // Expected
 418         }
 419
 420         verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
 421
 422         txChain.close();
 423         broker.close();
 424     }
 425
 426     @Test
 427     public void testChainedTransactionFailureWithMultipleShards() throws Exception {
 428         initDatastores("testChainedTransactionFailureWithMultipleShards");
 429
 430         ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
 431                 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
 432                         LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
 433                         MoreExecutors.directExecutor());
 434
 435         TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
 436         DOMTransactionChain txChain = broker.createTransactionChain(listener);
 437
 438         DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
 439
 440         writeTx.put(LogicalDatastoreType.CONFIGURATION, PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
 441
 442         ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
 443                 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
 444                     withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
 445
 446         // Note that merge will validate the data and fail but put succeeds b/c deep validation is not
 447         // done for put for performance reasons.
 448         writeTx.merge(LogicalDatastoreType.CONFIGURATION, CarsModel.BASE_PATH, invalidData);
 449
 450         try {
 451             writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
 452             fail("Expected TransactionCommitFailedException");
 453         } catch (TransactionCommitFailedException e) {
 454             // Expected
 455         }
 456
 457         verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
 458
 459         txChain.close();
 460         broker.close();
 461     }
 462
 463     @Test
 464     public void testSingleShardTransactionsWithLeaderChanges() throws Exception {
 465         String testName = "testSingleShardTransactionsWithLeaderChanges";
 466         initDatastores(testName);
 467
 468         String followerCarShardName = "member-2-shard-cars-" + testName;
 469         InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 1, ApplyJournalEntries.class );
 470
 471         // Write top-level car container from the follower so it uses a remote Tx.
 472
 473         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
 474
 475         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 476         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
 477
 478         followerTestKit.doCommit(writeTx.ready());
 479
 480         InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
 481
 482         // Switch the leader to the follower
 483
 484         followerDatastoreContextBuilder.shardElectionTimeoutFactor(1);
 485         followerDistributedDataStore.onDatastoreContextUpdated(followerDatastoreContextBuilder.build());
 486
 487         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
 488
 489         followerTestKit.waitUntilNoLeader(followerDistributedDataStore.getActorContext(), SHARD_NAMES);
 490
 491         leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
 492         Cluster.get(leaderSystem).join(MEMBER_2_ADDRESS);
 493
 494         DatastoreContext.Builder newMember1Builder = DatastoreContext.newBuilder().
 495                 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
 496         IntegrationTestKit newMember1TestKit = new IntegrationTestKit(leaderSystem, newMember1Builder);
 497         newMember1TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CONFIG_2, false, SHARD_NAMES);
 498
 499         followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), SHARD_NAMES);
 500
 501         // Write a car entry to the new leader - should switch to local Tx
 502
 503         writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
 504
 505         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 506         YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
 507         writeTx.merge(car1Path, car1);
 508
 509         followerTestKit.doCommit(writeTx.ready());
 510
 511         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1);
 512     }
 513
 514     @Test
 515     public void testReadyLocalTransactionForwardedToLeader() throws Exception {
 516         initDatastores("testReadyLocalTransactionForwardedToLeader");
 517
 518         Optional<ActorRef> carsFollowerShard = followerDistributedDataStore.getActorContext().findLocalShard("cars");
 519         assertEquals("Cars follower shard found", true, carsFollowerShard.isPresent());
 520
 521         TipProducingDataTree dataTree = InMemoryDataTreeFactory.getInstance().create();
 522         dataTree.setSchemaContext(SchemaContextHelper.full());
 523         DataTreeModification modification = dataTree.takeSnapshot().newModification();
 524
 525         new WriteModification(CarsModel.BASE_PATH, CarsModel.emptyContainer()).apply(modification);
 526         new MergeModification(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode()).apply(modification);
 527
 528         MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
 529         new WriteModification(CarsModel.newCarPath("optima"), car).apply(modification);
 530
 531         String transactionID = "tx-1";
 532         ReadyLocalTransaction readyLocal = new ReadyLocalTransaction(transactionID , modification, true);
 533
 534         carsFollowerShard.get().tell(readyLocal, followerTestKit.getRef());
 535         followerTestKit.expectMsgClass(CommitTransactionReply.SERIALIZABLE_CLASS);
 536
 537         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car);
 538     }
 539
 540     @Test(expected=NoShardLeaderException.class)
 541     public void testTransactionWithIsolatedLeader() throws Throwable {
 542         leaderDatastoreContextBuilder.shardIsolatedLeaderCheckIntervalInMillis(300);
 543         String testName = "testTransactionWithIsolatedLeader";
 544         initDatastores(testName);
 545
 546         JavaTestKit.shutdownActorSystem(followerSystem, null, true);
 547
 548         Uninterruptibles.sleepUninterruptibly(leaderDistributedDataStore.getActorContext().getDatastoreContext()
 549                 .getShardRaftConfig().getElectionTimeOutInterval().toMillis() * 3, TimeUnit.MILLISECONDS);
 550
 551         DOMStoreWriteTransaction writeTx = leaderDistributedDataStore.newWriteOnlyTransaction();
 552         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 553
 554         try {
 555             followerTestKit.doCommit(writeTx.ready());
 556         } catch (ExecutionException e) {
 557             throw e.getCause();
 558         }
 559     }
 560
 561     @Test(expected=AskTimeoutException.class)
 562     public void testTransactionWithShardLeaderNotResponding() throws Throwable {
 563         followerDatastoreContextBuilder.shardElectionTimeoutFactor(30);
 564         initDatastores("testTransactionWithShardLeaderNotResponding");
 565
 566         // Do an initial read to get the primary shard info cached.
 567
 568         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 569         readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
 570
 571         // Shutdown the leader and try to create a new tx.
 572
 573         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
 574
 575         followerDatastoreContextBuilder.operationTimeoutInMillis(50).shardElectionTimeoutFactor(1);
 576         followerDistributedDataStore.onDatastoreContextUpdated(followerDatastoreContextBuilder.build());
 577
 578         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
 579
 580         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 581
 582         try {
 583             followerTestKit.doCommit(rwTx.ready());
 584         } catch (ExecutionException e) {
 585             assertTrue("Expected ShardLeaderNotRespondingException cause. Actual: " + e.getCause(),
 586                     e.getCause() instanceof ShardLeaderNotRespondingException);
 587             assertNotNull("Expected a nested cause", e.getCause().getCause());
 588             throw e.getCause().getCause();
 589         }
 590     }
 591
 592     @Test(expected=NoShardLeaderException.class)
 593     public void testTransactionWithCreateTxFailureDueToNoLeader() throws Throwable {
 594         initDatastores("testTransactionWithCreateTxFailureDueToNoLeader");
 595
 596         // Do an initial read to get the primary shard info cached.
 597
 598         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 599         readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
 600
 601         // Shutdown the leader and try to create a new tx.
 602
 603         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
 604
 605         Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
 606
 607         followerDatastoreContextBuilder.operationTimeoutInMillis(10).shardElectionTimeoutFactor(1);
 608         followerDistributedDataStore.onDatastoreContextUpdated(followerDatastoreContextBuilder.build());
 609
 610         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
 611
 612         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 613
 614         try {
 615             followerTestKit.doCommit(rwTx.ready());
 616         } catch (ExecutionException e) {
 617             throw e.getCause();
 618         }
 619     }
 620
 621     @Test
 622     public void testTransactionRetryWithInitialAskTimeoutExOnCreateTx() throws Exception {
 623         followerDatastoreContextBuilder.shardElectionTimeoutFactor(30);
 624         String testName = "testTransactionRetryWithInitialAskTimeoutExOnCreateTx";
 625         initDatastores(testName, MODULE_SHARDS_CONFIG_3);
 626
 627         DatastoreContext.Builder follower2DatastoreContextBuilder = DatastoreContext.newBuilder().
 628                 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
 629         IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System, follower2DatastoreContextBuilder);
 630         follower2TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CONFIG_3, false, SHARD_NAMES);
 631
 632         // Do an initial read to get the primary shard info cached.
 633
 634         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
 635         readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
 636
 637         // Shutdown the leader and try to create a new tx.
 638
 639         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
 640
 641         followerDatastoreContextBuilder.operationTimeoutInMillis(500);
 642         followerDistributedDataStore.onDatastoreContextUpdated(followerDatastoreContextBuilder.build());
 643
 644         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
 645
 646         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
 647
 648         followerTestKit.doCommit(rwTx.ready());
 649     }
 650 }