2 * Copyright (c) 2015 Brocade Communications Systems, Inc. and others. All rights reserved.
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
8 package org.opendaylight.controller.cluster.datastore;
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.ActorSelection;
20 import akka.actor.ActorSystem;
21 import akka.actor.Address;
22 import akka.actor.AddressFromURIString;
23 import akka.cluster.Cluster;
24 import akka.dispatch.Futures;
25 import akka.pattern.AskTimeoutException;
26 import akka.pattern.Patterns;
27 import akka.testkit.JavaTestKit;
28 import com.google.common.base.Optional;
29 import com.google.common.base.Supplier;
30 import com.google.common.collect.ImmutableMap;
31 import com.google.common.util.concurrent.ListenableFuture;
32 import com.google.common.util.concurrent.MoreExecutors;
33 import com.google.common.util.concurrent.Uninterruptibles;
34 import com.typesafe.config.ConfigFactory;
35 import java.math.BigInteger;
36 import java.util.Arrays;
37 import java.util.LinkedList;
38 import java.util.concurrent.ExecutionException;
39 import java.util.concurrent.TimeUnit;
40 import org.junit.After;
41 import org.junit.Before;
42 import org.junit.Test;
43 import org.mockito.Mockito;
44 import org.mockito.invocation.InvocationOnMock;
45 import org.mockito.stubbing.Answer;
46 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
47 import org.opendaylight.controller.cluster.databroker.ConcurrentDOMDataBroker;
48 import org.opendaylight.controller.cluster.datastore.DatastoreContext.Builder;
49 import org.opendaylight.controller.cluster.datastore.IntegrationTestKit.ShardStatsVerifier;
50 import org.opendaylight.controller.cluster.datastore.MemberNode.RaftStateVerifier;
51 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
52 import org.opendaylight.controller.cluster.datastore.exceptions.ShardLeaderNotRespondingException;
53 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
54 import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
55 import org.opendaylight.controller.cluster.datastore.messages.ForwardedReadyTransaction;
56 import org.opendaylight.controller.cluster.datastore.messages.GetShardDataTree;
57 import org.opendaylight.controller.cluster.datastore.messages.ReadyLocalTransaction;
58 import org.opendaylight.controller.cluster.datastore.messages.ReadyTransactionReply;
59 import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
60 import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
61 import org.opendaylight.controller.cluster.raft.base.messages.ApplyJournalEntries;
62 import org.opendaylight.controller.cluster.raft.client.messages.OnDemandRaftState;
63 import org.opendaylight.controller.cluster.raft.client.messages.Shutdown;
64 import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
65 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
66 import org.opendaylight.controller.md.cluster.datastore.model.CarsModel;
67 import org.opendaylight.controller.md.cluster.datastore.model.PeopleModel;
68 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
69 import org.opendaylight.controller.md.cluster.datastore.model.TestModel;
70 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
71 import org.opendaylight.controller.md.sal.common.api.data.TransactionChainListener;
72 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
73 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
74 import org.opendaylight.controller.md.sal.dom.api.DOMTransactionChain;
75 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
76 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
77 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
78 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
79 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
80 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
81 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
82 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
83 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
84 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
85 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
86 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
87 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
88 import org.opendaylight.yangtools.yang.data.api.schema.tree.TipProducingDataTree;
89 import org.opendaylight.yangtools.yang.data.api.schema.tree.TreeType;
90 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
91 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
92 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
93 import org.opendaylight.yangtools.yang.data.impl.schema.tree.InMemoryDataTreeFactory;
94 import scala.concurrent.Await;
95 import scala.concurrent.Future;
96 import scala.concurrent.duration.FiniteDuration;
99 * End-to-end distributed data store tests that exercise remote shards and transactions.
101 * @author Thomas Pantelis
103 public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
105 private static final String[] CARS_AND_PEOPLE = {"cars", "people"};
106 private static final String[] CARS = {"cars"};
108 private static final Address MEMBER_1_ADDRESS = AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2558");
109 private static final Address MEMBER_2_ADDRESS = AddressFromURIString.parse("akka.tcp://cluster-test@127.0.0.1:2559");
111 private static final String MODULE_SHARDS_CARS_ONLY_1_2 = "module-shards-cars-member-1-and-2.conf";
112 private static final String MODULE_SHARDS_CARS_PEOPLE_1_2 = "module-shards-member1-and-2.conf";
113 private static final String MODULE_SHARDS_CARS_PEOPLE_1_2_3 = "module-shards-member1-and-2-and-3.conf";
115 private ActorSystem leaderSystem;
116 private ActorSystem followerSystem;
117 private ActorSystem follower2System;
119 private final DatastoreContext.Builder leaderDatastoreContextBuilder =
120 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(2);
122 private final DatastoreContext.Builder followerDatastoreContextBuilder =
123 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5).
124 customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
125 private final TransactionIdentifier tx1 = nextTransactionId();
126 private final TransactionIdentifier tx2 = nextTransactionId();
128 private DistributedDataStore followerDistributedDataStore;
129 private DistributedDataStore leaderDistributedDataStore;
130 private IntegrationTestKit followerTestKit;
131 private IntegrationTestKit leaderTestKit;
134 public void setUp() {
135 leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
136 Cluster.get(leaderSystem).join(MEMBER_1_ADDRESS);
138 followerSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
139 Cluster.get(followerSystem).join(MEMBER_1_ADDRESS);
141 follower2System = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member3"));
142 Cluster.get(follower2System).join(MEMBER_1_ADDRESS);
146 public void tearDown() {
147 if (followerDistributedDataStore != null) {
148 leaderDistributedDataStore.close();
150 if (leaderDistributedDataStore != null) {
151 leaderDistributedDataStore.close();
154 JavaTestKit.shutdownActorSystem(leaderSystem);
155 JavaTestKit.shutdownActorSystem(followerSystem);
156 JavaTestKit.shutdownActorSystem(follower2System);
159 private void initDatastoresWithCars(String type) {
160 initDatastores(type, MODULE_SHARDS_CARS_ONLY_1_2, CARS);
163 private void initDatastoresWithCarsAndPeople(String type) {
164 initDatastores(type, MODULE_SHARDS_CARS_PEOPLE_1_2, CARS_AND_PEOPLE);
167 private void initDatastores(String type, String moduleShardsConfig, String[] shards) {
168 leaderTestKit = new IntegrationTestKit(leaderSystem, leaderDatastoreContextBuilder);
170 leaderDistributedDataStore = leaderTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, shards);
172 followerTestKit = new IntegrationTestKit(followerSystem, followerDatastoreContextBuilder);
173 followerDistributedDataStore = followerTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, shards);
175 leaderTestKit.waitUntilLeader(leaderDistributedDataStore.getActorContext(), shards);
178 private static void verifyCars(DOMStoreReadTransaction readTx, MapEntryNode... entries) throws Exception {
179 Optional<NormalizedNode<?, ?>> optional = readTx.read(CarsModel.CAR_LIST_PATH).get(5, TimeUnit.SECONDS);
180 assertEquals("isPresent", true, optional.isPresent());
182 CollectionNodeBuilder<MapEntryNode, MapNode> listBuilder = ImmutableNodes.mapNodeBuilder(CarsModel.CAR_QNAME);
183 for(NormalizedNode<?, ?> entry: entries) {
184 listBuilder.withChild((MapEntryNode) entry);
187 assertEquals("Car list node", listBuilder.build(), optional.get());
190 private static void verifyNode(DOMStoreReadTransaction readTx, YangInstanceIdentifier path, NormalizedNode<?, ?> expNode)
192 Optional<NormalizedNode<?, ?>> optional = readTx.read(path).get(5, TimeUnit.SECONDS);
193 assertEquals("isPresent", true, optional.isPresent());
194 assertEquals("Data node", expNode, optional.get());
197 private static void verifyExists(DOMStoreReadTransaction readTx, YangInstanceIdentifier path) throws Exception {
198 Boolean exists = readTx.exists(path).get(5, TimeUnit.SECONDS);
199 assertEquals("exists", true, exists);
203 public void testWriteTransactionWithSingleShard() throws Exception {
204 String testName = "testWriteTransactionWithSingleShard";
205 initDatastoresWithCars(testName);
207 String followerCarShardName = "member-2-shard-cars-" + testName;
208 InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 2, ApplyJournalEntries.class );
210 DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
211 assertNotNull("newWriteOnlyTransaction returned null", writeTx);
213 writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
214 writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
216 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
217 YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
218 writeTx.merge(car1Path, car1);
220 MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
221 YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
222 writeTx.merge(car2Path, car2);
224 followerTestKit.doCommit(writeTx.ready());
226 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
228 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
232 writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
234 writeTx.delete(car1Path);
236 followerTestKit.doCommit(writeTx.ready());
238 verifyExists(followerDistributedDataStore.newReadOnlyTransaction(), car2Path);
240 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
242 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car2);
244 // Re-instate the follower member 2 as a single-node to verify replication and recovery.
246 InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
248 JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
249 JavaTestKit.shutdownActorSystem(followerSystem, null, true);
251 ActorSystem newSystem = ActorSystem.create("reinstated-member2", ConfigFactory.load().getConfig("Member2"));
253 try (DistributedDataStore member2Datastore = new IntegrationTestKit(newSystem, leaderDatastoreContextBuilder).
254 setupDistributedDataStore(testName, "module-shards-member2", true, CARS_AND_PEOPLE)) {
255 verifyCars(member2Datastore.newReadOnlyTransaction(), car2);
258 JavaTestKit.shutdownActorSystem(newSystem);
262 public void testReadWriteTransactionWithSingleShard() throws Exception {
263 initDatastoresWithCars("testReadWriteTransactionWithSingleShard");
265 DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
266 assertNotNull("newReadWriteTransaction returned null", rwTx);
268 rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
269 rwTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
271 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
272 rwTx.merge(CarsModel.newCarPath("optima"), car1);
274 verifyCars(rwTx, car1);
276 MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
277 YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
278 rwTx.merge(car2Path, car2);
280 verifyExists(rwTx, car2Path);
282 followerTestKit.doCommit(rwTx.ready());
284 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
288 public void testWriteTransactionWithMultipleShards() throws Exception {
289 initDatastoresWithCarsAndPeople("testWriteTransactionWithMultipleShards");
291 DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
292 assertNotNull("newWriteOnlyTransaction returned null", writeTx);
294 YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
295 NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
296 writeTx.write(carsPath, carsNode);
298 YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
299 NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
300 writeTx.write(peoplePath, peopleNode);
302 followerTestKit.doCommit(writeTx.ready());
304 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
306 verifyNode(readTx, carsPath, carsNode);
307 verifyNode(readTx, peoplePath, peopleNode);
311 public void testReadWriteTransactionWithMultipleShards() throws Exception {
312 initDatastoresWithCarsAndPeople("testReadWriteTransactionWithMultipleShards");
314 DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
315 assertNotNull("newReadWriteTransaction returned null", rwTx);
317 YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
318 NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
319 rwTx.write(carsPath, carsNode);
321 YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
322 NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
323 rwTx.write(peoplePath, peopleNode);
325 followerTestKit.doCommit(rwTx.ready());
327 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
329 verifyNode(readTx, carsPath, carsNode);
330 verifyNode(readTx, peoplePath, peopleNode);
334 public void testTransactionChainWithSingleShard() throws Exception {
335 initDatastoresWithCars("testTransactionChainWithSingleShard");
337 DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
339 // Add the top-level cars container with write-only.
341 DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
342 assertNotNull("newWriteOnlyTransaction returned null", writeTx);
344 writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
348 // Verify the top-level cars container with read-only.
350 verifyNode(txChain.newReadOnlyTransaction(), CarsModel.BASE_PATH, CarsModel.emptyContainer());
352 // Perform car operations with read-write.
354 DOMStoreReadWriteTransaction rwTx = txChain.newReadWriteTransaction();
356 verifyNode(rwTx, CarsModel.BASE_PATH, CarsModel.emptyContainer());
358 rwTx.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
360 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
361 YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
362 rwTx.write(car1Path, car1);
364 verifyExists(rwTx, car1Path);
366 verifyCars(rwTx, car1);
368 MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
369 rwTx.merge(CarsModel.newCarPath("sportage"), car2);
371 rwTx.delete(car1Path);
373 followerTestKit.doCommit(rwTx.ready());
377 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
381 public void testTransactionChainWithMultipleShards() throws Exception{
382 initDatastoresWithCarsAndPeople("testTransactionChainWithMultipleShards");
384 DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
386 DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
387 assertNotNull("newWriteOnlyTransaction returned null", writeTx);
389 writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
390 writeTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
392 writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
393 writeTx.write(PeopleModel.PERSON_LIST_PATH, PeopleModel.newPersonMapNode());
395 followerTestKit.doCommit(writeTx.ready());
397 DOMStoreReadWriteTransaction readWriteTx = txChain.newReadWriteTransaction();
399 MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
400 YangInstanceIdentifier carPath = CarsModel.newCarPath("optima");
401 readWriteTx.write(carPath, car);
403 MapEntryNode person = PeopleModel.newPersonEntry("jack");
404 YangInstanceIdentifier personPath = PeopleModel.newPersonPath("jack");
405 readWriteTx.merge(personPath, person);
407 Optional<NormalizedNode<?, ?>> optional = readWriteTx.read(carPath).get(5, TimeUnit.SECONDS);
408 assertEquals("isPresent", true, optional.isPresent());
409 assertEquals("Data node", car, optional.get());
411 optional = readWriteTx.read(personPath).get(5, TimeUnit.SECONDS);
412 assertEquals("isPresent", true, optional.isPresent());
413 assertEquals("Data node", person, optional.get());
415 DOMStoreThreePhaseCommitCohort cohort2 = readWriteTx.ready();
417 writeTx = txChain.newWriteOnlyTransaction();
419 writeTx.delete(personPath);
421 DOMStoreThreePhaseCommitCohort cohort3 = writeTx.ready();
423 followerTestKit.doCommit(cohort2);
424 followerTestKit.doCommit(cohort3);
428 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
429 verifyCars(readTx, car);
431 optional = readTx.read(personPath).get(5, TimeUnit.SECONDS);
432 assertEquals("isPresent", false, optional.isPresent());
436 public void testChainedTransactionFailureWithSingleShard() throws Exception {
437 initDatastoresWithCars("testChainedTransactionFailureWithSingleShard");
439 ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
440 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
441 LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
442 MoreExecutors.directExecutor());
444 TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
445 DOMTransactionChain txChain = broker.createTransactionChain(listener);
447 DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
449 ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
450 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
451 withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
453 writeTx.merge(LogicalDatastoreType.CONFIGURATION, CarsModel.BASE_PATH, invalidData);
456 writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
457 fail("Expected TransactionCommitFailedException");
458 } catch (TransactionCommitFailedException e) {
462 verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
469 public void testChainedTransactionFailureWithMultipleShards() throws Exception {
470 initDatastoresWithCarsAndPeople("testChainedTransactionFailureWithMultipleShards");
472 ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
473 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
474 LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
475 MoreExecutors.directExecutor());
477 TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
478 DOMTransactionChain txChain = broker.createTransactionChain(listener);
480 DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
482 writeTx.put(LogicalDatastoreType.CONFIGURATION, PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
484 ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
485 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
486 withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
488 // Note that merge will validate the data and fail but put succeeds b/c deep validation is not
489 // done for put for performance reasons.
490 writeTx.merge(LogicalDatastoreType.CONFIGURATION, CarsModel.BASE_PATH, invalidData);
493 writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
494 fail("Expected TransactionCommitFailedException");
495 } catch (TransactionCommitFailedException e) {
499 verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
506 public void testSingleShardTransactionsWithLeaderChanges() throws Exception {
507 String testName = "testSingleShardTransactionsWithLeaderChanges";
508 initDatastoresWithCars(testName);
510 String followerCarShardName = "member-2-shard-cars-" + testName;
511 InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 1, ApplyJournalEntries.class );
513 // Write top-level car container from the follower so it uses a remote Tx.
515 DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
517 writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
518 writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
520 followerTestKit.doCommit(writeTx.ready());
522 InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
524 // Switch the leader to the follower
526 sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
527 shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
529 JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
531 followerTestKit.waitUntilNoLeader(followerDistributedDataStore.getActorContext(), CARS);
533 leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
534 Cluster.get(leaderSystem).join(MEMBER_2_ADDRESS);
536 DatastoreContext.Builder newMember1Builder = DatastoreContext.newBuilder().
537 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
538 IntegrationTestKit newMember1TestKit = new IntegrationTestKit(leaderSystem, newMember1Builder);
540 try (DistributedDataStore ds =
541 newMember1TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CARS_ONLY_1_2, false, CARS)) {
543 followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), CARS);
545 // Write a car entry to the new leader - should switch to local Tx
547 writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
549 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
550 YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
551 writeTx.merge(car1Path, car1);
553 followerTestKit.doCommit(writeTx.ready());
555 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1);
559 @SuppressWarnings("unchecked")
561 public void testReadyLocalTransactionForwardedToLeader() throws Exception {
562 initDatastoresWithCars("testReadyLocalTransactionForwardedToLeader");
563 followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), "cars");
565 Optional<ActorRef> carsFollowerShard = followerDistributedDataStore.getActorContext().findLocalShard("cars");
566 assertEquals("Cars follower shard found", true, carsFollowerShard.isPresent());
568 TipProducingDataTree dataTree = InMemoryDataTreeFactory.getInstance().create(TreeType.OPERATIONAL);
569 dataTree.setSchemaContext(SchemaContextHelper.full());
571 // Send a tx with immediate commit.
573 DataTreeModification modification = dataTree.takeSnapshot().newModification();
574 new WriteModification(CarsModel.BASE_PATH, CarsModel.emptyContainer()).apply(modification);
575 new MergeModification(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode()).apply(modification);
577 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
578 new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
579 modification.ready();
581 ReadyLocalTransaction readyLocal = new ReadyLocalTransaction(tx1 , modification, true);
583 carsFollowerShard.get().tell(readyLocal, followerTestKit.getRef());
584 Object resp = followerTestKit.expectMsgClass(Object.class);
585 if(resp instanceof akka.actor.Status.Failure) {
586 throw new AssertionError("Unexpected failure response", ((akka.actor.Status.Failure)resp).cause());
589 assertEquals("Response type", CommitTransactionReply.class, resp.getClass());
591 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1);
593 // Send another tx without immediate commit.
595 modification = dataTree.takeSnapshot().newModification();
596 MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(30000));
597 new WriteModification(CarsModel.newCarPath("sportage"), car2).apply(modification);
598 modification.ready();
600 readyLocal = new ReadyLocalTransaction(tx2 , modification, false);
602 carsFollowerShard.get().tell(readyLocal, followerTestKit.getRef());
603 resp = followerTestKit.expectMsgClass(Object.class);
604 if(resp instanceof akka.actor.Status.Failure) {
605 throw new AssertionError("Unexpected failure response", ((akka.actor.Status.Failure)resp).cause());
608 assertEquals("Response type", ReadyTransactionReply.class, resp.getClass());
610 ActorSelection txActor = leaderDistributedDataStore.getActorContext().actorSelection(
611 ((ReadyTransactionReply)resp).getCohortPath());
613 Supplier<Short> versionSupplier = Mockito.mock(Supplier.class);
614 Mockito.doReturn(DataStoreVersions.CURRENT_VERSION).when(versionSupplier).get();
615 ThreePhaseCommitCohortProxy cohort = new ThreePhaseCommitCohortProxy(
616 leaderDistributedDataStore.getActorContext(), Arrays.asList(
617 new ThreePhaseCommitCohortProxy.CohortInfo(Futures.successful(txActor), versionSupplier)), tx2);
618 cohort.canCommit().get(5, TimeUnit.SECONDS);
619 cohort.preCommit().get(5, TimeUnit.SECONDS);
620 cohort.commit().get(5, TimeUnit.SECONDS);
622 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
625 @SuppressWarnings("unchecked")
627 public void testForwardedReadyTransactionForwardedToLeader() throws Exception {
628 initDatastoresWithCars("testForwardedReadyTransactionForwardedToLeader");
629 followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), "cars");
631 Optional<ActorRef> carsFollowerShard = followerDistributedDataStore.getActorContext().findLocalShard("cars");
632 assertEquals("Cars follower shard found", true, carsFollowerShard.isPresent());
634 carsFollowerShard.get().tell(GetShardDataTree.INSTANCE, followerTestKit.getRef());
635 DataTree dataTree = followerTestKit.expectMsgClass(DataTree.class);
637 // Send a tx with immediate commit.
639 DataTreeModification modification = dataTree.takeSnapshot().newModification();
640 new WriteModification(CarsModel.BASE_PATH, CarsModel.emptyContainer()).apply(modification);
641 new MergeModification(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode()).apply(modification);
643 MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
644 new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
646 ForwardedReadyTransaction forwardedReady = new ForwardedReadyTransaction(tx1,
647 DataStoreVersions.CURRENT_VERSION, new ReadWriteShardDataTreeTransaction(
648 Mockito.mock(ShardDataTreeTransactionParent.class), tx1, modification), true);
650 carsFollowerShard.get().tell(forwardedReady, followerTestKit.getRef());
651 Object resp = followerTestKit.expectMsgClass(Object.class);
652 if(resp instanceof akka.actor.Status.Failure) {
653 throw new AssertionError("Unexpected failure response", ((akka.actor.Status.Failure)resp).cause());
656 assertEquals("Response type", CommitTransactionReply.class, resp.getClass());
658 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1);
660 // Send another tx without immediate commit.
662 modification = dataTree.takeSnapshot().newModification();
663 MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(30000));
664 new WriteModification(CarsModel.newCarPath("sportage"), car2).apply(modification);
666 forwardedReady = new ForwardedReadyTransaction(tx2,
667 DataStoreVersions.CURRENT_VERSION, new ReadWriteShardDataTreeTransaction(
668 Mockito.mock(ShardDataTreeTransactionParent.class), tx2, modification), false);
670 carsFollowerShard.get().tell(forwardedReady, followerTestKit.getRef());
671 resp = followerTestKit.expectMsgClass(Object.class);
672 if(resp instanceof akka.actor.Status.Failure) {
673 throw new AssertionError("Unexpected failure response", ((akka.actor.Status.Failure)resp).cause());
676 assertEquals("Response type", ReadyTransactionReply.class, resp.getClass());
678 ActorSelection txActor = leaderDistributedDataStore.getActorContext().actorSelection(
679 ((ReadyTransactionReply)resp).getCohortPath());
681 Supplier<Short> versionSupplier = Mockito.mock(Supplier.class);
682 Mockito.doReturn(DataStoreVersions.CURRENT_VERSION).when(versionSupplier).get();
683 ThreePhaseCommitCohortProxy cohort = new ThreePhaseCommitCohortProxy(
684 leaderDistributedDataStore.getActorContext(), Arrays.asList(
685 new ThreePhaseCommitCohortProxy.CohortInfo(Futures.successful(txActor), versionSupplier)), tx2);
686 cohort.canCommit().get(5, TimeUnit.SECONDS);
687 cohort.preCommit().get(5, TimeUnit.SECONDS);
688 cohort.commit().get(5, TimeUnit.SECONDS);
690 verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
694 public void testTransactionForwardedToLeaderAfterRetry() throws Exception {
695 followerDatastoreContextBuilder.shardBatchedModificationCount(2);
696 leaderDatastoreContextBuilder.shardBatchedModificationCount(2);
697 initDatastoresWithCarsAndPeople("testTransactionForwardedToLeaderAfterRetry");
699 // Do an initial write to get the primary shard info cached.
701 DOMStoreWriteTransaction initialWriteTx = followerDistributedDataStore.newWriteOnlyTransaction();
702 initialWriteTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
703 initialWriteTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
704 followerTestKit.doCommit(initialWriteTx.ready());
706 // Wait for the commit to be replicated to the follower.
708 MemberNode.verifyRaftState(followerDistributedDataStore, "cars", new RaftStateVerifier() {
710 public void verify(OnDemandRaftState raftState) {
711 assertEquals("getLastApplied", 0, raftState.getLastApplied());
715 MemberNode.verifyRaftState(followerDistributedDataStore, "people", new RaftStateVerifier() {
717 public void verify(OnDemandRaftState raftState) {
718 assertEquals("getLastApplied", 0, raftState.getLastApplied());
722 // Prepare, ready and canCommit a WO tx that writes to 2 shards. This will become the current tx in
725 DOMStoreWriteTransaction writeTx1 = followerDistributedDataStore.newWriteOnlyTransaction();
726 writeTx1.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
727 writeTx1.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
728 DOMStoreThreePhaseCommitCohort writeTx1Cohort = writeTx1.ready();
729 ListenableFuture<Boolean> writeTx1CanCommit = writeTx1Cohort.canCommit();
730 writeTx1CanCommit.get(5, TimeUnit.SECONDS);
732 // Prepare and ready another WO tx that writes to 2 shards but don't canCommit yet. This will be queued
733 // in the leader shard.
735 DOMStoreWriteTransaction writeTx2 = followerDistributedDataStore.newWriteOnlyTransaction();
736 LinkedList<MapEntryNode> cars = new LinkedList<>();
738 cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
739 writeTx2.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
741 NormalizedNode<?, ?> people = PeopleModel.newPersonMapNode();
742 writeTx2.write(PeopleModel.PERSON_LIST_PATH, people);
743 DOMStoreThreePhaseCommitCohort writeTx2Cohort = writeTx2.ready();
745 // Prepare another WO that writes to a single shard and thus will be directly committed on ready. This
746 // tx writes 5 cars so 2 BatchedModidifications messages will be sent initially and cached in the
747 // leader shard (with shardBatchedModificationCount set to 2). The 3rd BatchedModidifications will be
750 DOMStoreWriteTransaction writeTx3 = followerDistributedDataStore.newWriteOnlyTransaction();
751 for(int i = 1; i <= 5; i++, carIndex++) {
752 cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
753 writeTx3.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
756 // Prepare another WO that writes to a single shard. This will send a single BatchedModidifications
759 DOMStoreWriteTransaction writeTx4 = followerDistributedDataStore.newWriteOnlyTransaction();
760 cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
761 writeTx4.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
764 // Prepare a RW tx that will create a tx actor and send a ForwardedReadyTransaciton message to the
765 // leader shard on ready.
767 DOMStoreReadWriteTransaction readWriteTx = followerDistributedDataStore.newReadWriteTransaction();
768 cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
769 readWriteTx.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
771 IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
773 public void verify(ShardStats stats) {
774 assertEquals("getReadWriteTransactionCount", 1, stats.getReadWriteTransactionCount());
778 // Disable elections on the leader so it switches to follower.
780 sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
781 customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName()).
782 shardElectionTimeoutFactor(10));
784 leaderTestKit.waitUntilNoLeader(leaderDistributedDataStore.getActorContext(), "cars");
786 // Submit all tx's - the messages should get queued for retry.
788 ListenableFuture<Boolean> writeTx2CanCommit = writeTx2Cohort.canCommit();
789 DOMStoreThreePhaseCommitCohort writeTx3Cohort = writeTx3.ready();
790 DOMStoreThreePhaseCommitCohort writeTx4Cohort = writeTx4.ready();
791 DOMStoreThreePhaseCommitCohort rwTxCohort = readWriteTx.ready();
793 // Enable elections on the other follower so it becomes the leader, at which point the
794 // tx's should get forwarded from the previous leader to the new leader to complete the commits.
796 sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
797 customRaftPolicyImplementation(null).shardElectionTimeoutFactor(1));
799 followerTestKit.doCommit(writeTx1CanCommit, writeTx1Cohort);
800 followerTestKit.doCommit(writeTx2CanCommit, writeTx2Cohort);
801 followerTestKit.doCommit(writeTx3Cohort);
802 followerTestKit.doCommit(writeTx4Cohort);
803 followerTestKit.doCommit(rwTxCohort);
805 DOMStoreReadTransaction readTx = leaderDistributedDataStore.newReadOnlyTransaction();
806 verifyCars(readTx, cars.toArray(new MapEntryNode[cars.size()]));
807 verifyNode(readTx, PeopleModel.PERSON_LIST_PATH, people);
811 public void testLeadershipTransferOnShutdown() throws Exception {
812 leaderDatastoreContextBuilder.shardBatchedModificationCount(1);
813 followerDatastoreContextBuilder.shardElectionTimeoutFactor(10).customRaftPolicyImplementation(null);
814 String testName = "testLeadershipTransferOnShutdown";
815 initDatastores(testName, MODULE_SHARDS_CARS_PEOPLE_1_2_3, CARS_AND_PEOPLE);
817 IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System, followerDatastoreContextBuilder);
818 try (DistributedDataStore follower2DistributedDataStore = follower2TestKit.setupDistributedDataStore(testName,
819 MODULE_SHARDS_CARS_PEOPLE_1_2_3, false)) {
821 // Create and submit a couple tx's so they're pending.
823 DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
824 writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
825 writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
826 writeTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
827 DOMStoreThreePhaseCommitCohort cohort1 = writeTx.ready();
829 IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
831 public void verify(ShardStats stats) {
832 assertEquals("getTxCohortCacheSize", 1, stats.getTxCohortCacheSize());
836 writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
837 MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
838 writeTx.write(CarsModel.newCarPath("optima"), car);
839 DOMStoreThreePhaseCommitCohort cohort2 = writeTx.ready();
841 IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
843 public void verify(ShardStats stats) {
844 assertEquals("getTxCohortCacheSize", 2, stats.getTxCohortCacheSize());
848 // Gracefully stop the leader via a Shutdown message.
850 sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
851 shardElectionTimeoutFactor(100));
853 FiniteDuration duration = FiniteDuration.create(5, TimeUnit.SECONDS);
854 Future<ActorRef> future = leaderDistributedDataStore.getActorContext().findLocalShardAsync("cars");
855 ActorRef leaderActor = Await.result(future, duration);
857 Future<Boolean> stopFuture = Patterns.gracefulStop(leaderActor, duration, Shutdown.INSTANCE);
859 // Commit the 2 transactions. They should finish and succeed.
861 followerTestKit.doCommit(cohort1);
862 followerTestKit.doCommit(cohort2);
864 // Wait for the leader actor stopped.
866 Boolean stopped = Await.result(stopFuture, duration);
867 assertEquals("Stopped", Boolean.TRUE, stopped);
869 // Verify leadership was transferred by reading the committed data from the other nodes.
871 verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car);
872 verifyCars(follower2DistributedDataStore.newReadOnlyTransaction(), car);
877 public void testTransactionWithIsolatedLeader() throws Throwable {
878 leaderDatastoreContextBuilder.shardIsolatedLeaderCheckIntervalInMillis(200);
879 String testName = "testTransactionWithIsolatedLeader";
880 initDatastoresWithCars(testName);
882 DOMStoreWriteTransaction failWriteTx = leaderDistributedDataStore.newWriteOnlyTransaction();
883 failWriteTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
885 DOMStoreWriteTransaction successWriteTx = leaderDistributedDataStore.newWriteOnlyTransaction();
886 successWriteTx.merge(CarsModel.BASE_PATH, CarsModel.emptyContainer());
888 followerTestKit.watch(followerDistributedDataStore.getActorContext().getShardManager());
889 followerDistributedDataStore.close();
890 followerTestKit.expectTerminated(followerDistributedDataStore.getActorContext().getShardManager());
892 MemberNode.verifyRaftState(leaderDistributedDataStore, "cars", new RaftStateVerifier() {
894 public void verify(OnDemandRaftState raftState) {
895 assertEquals("getRaftState", "IsolatedLeader", raftState.getRaftState());
900 leaderTestKit.doCommit(failWriteTx.ready());
901 fail("Expected NoShardLeaderException");
902 } catch (ExecutionException e) {
903 assertEquals("getCause", NoShardLeaderException.class, e.getCause().getClass());
906 sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
907 shardElectionTimeoutFactor(100));
909 DOMStoreThreePhaseCommitCohort writeTxCohort = successWriteTx.ready();
911 followerDistributedDataStore = followerTestKit.setupDistributedDataStore(testName,
912 MODULE_SHARDS_CARS_ONLY_1_2, false, CARS);
914 leaderTestKit.doCommit(writeTxCohort);
917 @Test(expected=AskTimeoutException.class)
918 public void testTransactionWithShardLeaderNotResponding() throws Throwable {
919 initDatastoresWithCars("testTransactionWithShardLeaderNotResponding");
921 // Do an initial read to get the primary shard info cached.
923 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
924 readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
926 // Shutdown the leader and try to create a new tx.
928 JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
930 followerDatastoreContextBuilder.operationTimeoutInMillis(50).shardElectionTimeoutFactor(1);
931 sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder);
933 DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
935 rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
938 followerTestKit.doCommit(rwTx.ready());
939 } catch (ExecutionException e) {
940 assertTrue("Expected ShardLeaderNotRespondingException cause. Actual: " + e.getCause(),
941 e.getCause() instanceof ShardLeaderNotRespondingException);
942 assertNotNull("Expected a nested cause", e.getCause().getCause());
943 throw e.getCause().getCause();
947 @Test(expected=NoShardLeaderException.class)
948 public void testTransactionWithCreateTxFailureDueToNoLeader() throws Throwable {
949 initDatastoresWithCars("testTransactionWithCreateTxFailureDueToNoLeader");
951 // Do an initial read to get the primary shard info cached.
953 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
954 readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
956 // Shutdown the leader and try to create a new tx.
958 JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
960 Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
962 sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
963 operationTimeoutInMillis(10).shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
965 DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
967 rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
970 followerTestKit.doCommit(rwTx.ready());
971 } catch (ExecutionException e) {
977 public void testTransactionRetryWithInitialAskTimeoutExOnCreateTx() throws Exception {
978 String testName = "testTransactionRetryWithInitialAskTimeoutExOnCreateTx";
979 initDatastores(testName, MODULE_SHARDS_CARS_PEOPLE_1_2_3, CARS);
981 DatastoreContext.Builder follower2DatastoreContextBuilder = DatastoreContext.newBuilder().
982 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
983 IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System, follower2DatastoreContextBuilder);
985 try (DistributedDataStore ds =
986 follower2TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CARS_PEOPLE_1_2_3, false, CARS)) {
988 followerTestKit.waitForMembersUp("member-1", "member-3");
989 follower2TestKit.waitForMembersUp("member-1", "member-2");
991 // Do an initial read to get the primary shard info cached.
993 DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
994 readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
996 // Shutdown the leader and try to create a new tx.
998 JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
1000 sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
1001 operationTimeoutInMillis(500).shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
1003 DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
1005 rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
1007 followerTestKit.doCommit(rwTx.ready());
1011 private static void sendDatastoreContextUpdate(DistributedDataStore dataStore, final Builder builder) {
1012 final Builder newBuilder = DatastoreContext.newBuilderFrom(builder.build());
1013 DatastoreContextFactory mockContextFactory = Mockito.mock(DatastoreContextFactory.class);
1014 Answer<DatastoreContext> answer = new Answer<DatastoreContext>() {
1016 public DatastoreContext answer(InvocationOnMock invocation) {
1017 return newBuilder.build();
1020 Mockito.doAnswer(answer).when(mockContextFactory).getBaseDatastoreContext();
1021 Mockito.doAnswer(answer).when(mockContextFactory).getShardDatastoreContext(Mockito.anyString());
1022 dataStore.onDatastoreContextUpdated(mockContextFactory);