Bug 5504: Add PreLeader raft state
[controller.git] / 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.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;
97
98 /**
99  * End-to-end distributed data store tests that exercise remote shards and transactions.
100  *
101  * @author Thomas Pantelis
102  */
103 public class DistributedDataStoreRemotingIntegrationTest extends AbstractTest {
104
105     private static final String[] CARS_AND_PEOPLE = {"cars", "people"};
106     private static final String[] CARS = {"cars"};
107
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");
110
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";
114
115     private ActorSystem leaderSystem;
116     private ActorSystem followerSystem;
117     private ActorSystem follower2System;
118
119     private final DatastoreContext.Builder leaderDatastoreContextBuilder =
120             DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(2);
121
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();
127
128     private DistributedDataStore followerDistributedDataStore;
129     private DistributedDataStore leaderDistributedDataStore;
130     private IntegrationTestKit followerTestKit;
131     private IntegrationTestKit leaderTestKit;
132
133     @Before
134     public void setUp() {
135         leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
136         Cluster.get(leaderSystem).join(MEMBER_1_ADDRESS);
137
138         followerSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member2"));
139         Cluster.get(followerSystem).join(MEMBER_1_ADDRESS);
140
141         follower2System = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member3"));
142         Cluster.get(follower2System).join(MEMBER_1_ADDRESS);
143     }
144
145     @After
146     public void tearDown() {
147         if (followerDistributedDataStore != null) {
148             leaderDistributedDataStore.close();
149         }
150         if (leaderDistributedDataStore != null) {
151             leaderDistributedDataStore.close();
152         }
153
154         JavaTestKit.shutdownActorSystem(leaderSystem);
155         JavaTestKit.shutdownActorSystem(followerSystem);
156         JavaTestKit.shutdownActorSystem(follower2System);
157     }
158
159     private void initDatastoresWithCars(String type) {
160         initDatastores(type, MODULE_SHARDS_CARS_ONLY_1_2, CARS);
161     }
162
163     private void initDatastoresWithCarsAndPeople(String type) {
164         initDatastores(type, MODULE_SHARDS_CARS_PEOPLE_1_2, CARS_AND_PEOPLE);
165     }
166
167     private void initDatastores(String type, String moduleShardsConfig, String[] shards) {
168         leaderTestKit = new IntegrationTestKit(leaderSystem, leaderDatastoreContextBuilder);
169
170         leaderDistributedDataStore = leaderTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, shards);
171
172         followerTestKit = new IntegrationTestKit(followerSystem, followerDatastoreContextBuilder);
173         followerDistributedDataStore = followerTestKit.setupDistributedDataStore(type, moduleShardsConfig, false, shards);
174
175         leaderTestKit.waitUntilLeader(leaderDistributedDataStore.getActorContext(), shards);
176     }
177
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());
181
182         CollectionNodeBuilder<MapEntryNode, MapNode> listBuilder = ImmutableNodes.mapNodeBuilder(CarsModel.CAR_QNAME);
183         for(NormalizedNode<?, ?> entry: entries) {
184             listBuilder.withChild((MapEntryNode) entry);
185         }
186
187         assertEquals("Car list node", listBuilder.build(), optional.get());
188     }
189
190     private static void verifyNode(DOMStoreReadTransaction readTx, YangInstanceIdentifier path, NormalizedNode<?, ?> expNode)
191             throws Exception {
192         Optional<NormalizedNode<?, ?>> optional = readTx.read(path).get(5, TimeUnit.SECONDS);
193         assertEquals("isPresent", true, optional.isPresent());
194         assertEquals("Data node", expNode, optional.get());
195     }
196
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);
200     }
201
202     @Test
203     public void testWriteTransactionWithSingleShard() throws Exception {
204         String testName = "testWriteTransactionWithSingleShard";
205         initDatastoresWithCars(testName);
206
207         String followerCarShardName = "member-2-shard-cars-" + testName;
208         InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 2, ApplyJournalEntries.class );
209
210         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
211         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
212
213         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
214         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
215
216         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
217         YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
218         writeTx.merge(car1Path, car1);
219
220         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
221         YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
222         writeTx.merge(car2Path, car2);
223
224         followerTestKit.doCommit(writeTx.ready());
225
226         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
227
228         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
229
230         // Test delete
231
232         writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
233
234         writeTx.delete(car1Path);
235
236         followerTestKit.doCommit(writeTx.ready());
237
238         verifyExists(followerDistributedDataStore.newReadOnlyTransaction(), car2Path);
239
240         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
241
242         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car2);
243
244         // Re-instate the follower member 2 as a single-node to verify replication and recovery.
245
246         InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
247
248         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
249         JavaTestKit.shutdownActorSystem(followerSystem, null, true);
250
251         ActorSystem newSystem = ActorSystem.create("reinstated-member2", ConfigFactory.load().getConfig("Member2"));
252
253         try (DistributedDataStore member2Datastore = new IntegrationTestKit(newSystem, leaderDatastoreContextBuilder).
254                 setupDistributedDataStore(testName, "module-shards-member2", true, CARS_AND_PEOPLE)) {
255             verifyCars(member2Datastore.newReadOnlyTransaction(), car2);
256         }
257
258         JavaTestKit.shutdownActorSystem(newSystem);
259     }
260
261     @Test
262     public void testReadWriteTransactionWithSingleShard() throws Exception {
263         initDatastoresWithCars("testReadWriteTransactionWithSingleShard");
264
265         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
266         assertNotNull("newReadWriteTransaction returned null", rwTx);
267
268         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
269         rwTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
270
271         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
272         rwTx.merge(CarsModel.newCarPath("optima"), car1);
273
274         verifyCars(rwTx, car1);
275
276         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
277         YangInstanceIdentifier car2Path = CarsModel.newCarPath("sportage");
278         rwTx.merge(car2Path, car2);
279
280         verifyExists(rwTx, car2Path);
281
282         followerTestKit.doCommit(rwTx.ready());
283
284         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1, car2);
285     }
286
287     @Test
288     public void testWriteTransactionWithMultipleShards() throws Exception {
289         initDatastoresWithCarsAndPeople("testWriteTransactionWithMultipleShards");
290
291         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
292         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
293
294         YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
295         NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
296         writeTx.write(carsPath, carsNode);
297
298         YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
299         NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
300         writeTx.write(peoplePath, peopleNode);
301
302         followerTestKit.doCommit(writeTx.ready());
303
304         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
305
306         verifyNode(readTx, carsPath, carsNode);
307         verifyNode(readTx, peoplePath, peopleNode);
308     }
309
310     @Test
311     public void testReadWriteTransactionWithMultipleShards() throws Exception {
312         initDatastoresWithCarsAndPeople("testReadWriteTransactionWithMultipleShards");
313
314         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
315         assertNotNull("newReadWriteTransaction returned null", rwTx);
316
317         YangInstanceIdentifier carsPath = CarsModel.BASE_PATH;
318         NormalizedNode<?, ?> carsNode = CarsModel.emptyContainer();
319         rwTx.write(carsPath, carsNode);
320
321         YangInstanceIdentifier peoplePath = PeopleModel.BASE_PATH;
322         NormalizedNode<?, ?> peopleNode = PeopleModel.emptyContainer();
323         rwTx.write(peoplePath, peopleNode);
324
325         followerTestKit.doCommit(rwTx.ready());
326
327         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
328
329         verifyNode(readTx, carsPath, carsNode);
330         verifyNode(readTx, peoplePath, peopleNode);
331     }
332
333     @Test
334     public void testTransactionChainWithSingleShard() throws Exception {
335         initDatastoresWithCars("testTransactionChainWithSingleShard");
336
337         DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
338
339         // Add the top-level cars container with write-only.
340
341         DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
342         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
343
344         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
345
346         writeTx.ready();
347
348         // Verify the top-level cars container with read-only.
349
350         verifyNode(txChain.newReadOnlyTransaction(), CarsModel.BASE_PATH, CarsModel.emptyContainer());
351
352         // Perform car operations with read-write.
353
354         DOMStoreReadWriteTransaction rwTx = txChain.newReadWriteTransaction();
355
356         verifyNode(rwTx, CarsModel.BASE_PATH, CarsModel.emptyContainer());
357
358         rwTx.merge(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
359
360         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
361         YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
362         rwTx.write(car1Path, car1);
363
364         verifyExists(rwTx, car1Path);
365
366         verifyCars(rwTx, car1);
367
368         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(25000));
369         rwTx.merge(CarsModel.newCarPath("sportage"), car2);
370
371         rwTx.delete(car1Path);
372
373         followerTestKit.doCommit(rwTx.ready());
374
375         txChain.close();
376
377         verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car2);
378     }
379
380     @Test
381     public void testTransactionChainWithMultipleShards() throws Exception{
382         initDatastoresWithCarsAndPeople("testTransactionChainWithMultipleShards");
383
384         DOMStoreTransactionChain txChain = followerDistributedDataStore.createTransactionChain();
385
386         DOMStoreWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
387         assertNotNull("newWriteOnlyTransaction returned null", writeTx);
388
389         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
390         writeTx.write(PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
391
392         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
393         writeTx.write(PeopleModel.PERSON_LIST_PATH, PeopleModel.newPersonMapNode());
394
395         followerTestKit.doCommit(writeTx.ready());
396
397         DOMStoreReadWriteTransaction readWriteTx = txChain.newReadWriteTransaction();
398
399         MapEntryNode car = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
400         YangInstanceIdentifier carPath = CarsModel.newCarPath("optima");
401         readWriteTx.write(carPath, car);
402
403         MapEntryNode person = PeopleModel.newPersonEntry("jack");
404         YangInstanceIdentifier personPath = PeopleModel.newPersonPath("jack");
405         readWriteTx.merge(personPath, person);
406
407         Optional<NormalizedNode<?, ?>> optional = readWriteTx.read(carPath).get(5, TimeUnit.SECONDS);
408         assertEquals("isPresent", true, optional.isPresent());
409         assertEquals("Data node", car, optional.get());
410
411         optional = readWriteTx.read(personPath).get(5, TimeUnit.SECONDS);
412         assertEquals("isPresent", true, optional.isPresent());
413         assertEquals("Data node", person, optional.get());
414
415         DOMStoreThreePhaseCommitCohort cohort2 = readWriteTx.ready();
416
417         writeTx = txChain.newWriteOnlyTransaction();
418
419         writeTx.delete(personPath);
420
421         DOMStoreThreePhaseCommitCohort cohort3 = writeTx.ready();
422
423         followerTestKit.doCommit(cohort2);
424         followerTestKit.doCommit(cohort3);
425
426         txChain.close();
427
428         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
429         verifyCars(readTx, car);
430
431         optional = readTx.read(personPath).get(5, TimeUnit.SECONDS);
432         assertEquals("isPresent", false, optional.isPresent());
433     }
434
435     @Test
436     public void testChainedTransactionFailureWithSingleShard() throws Exception {
437         initDatastoresWithCars("testChainedTransactionFailureWithSingleShard");
438
439         ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
440                 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
441                         LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
442                         MoreExecutors.directExecutor());
443
444         TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
445         DOMTransactionChain txChain = broker.createTransactionChain(listener);
446
447         DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
448
449         ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
450                 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
451                     withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
452
453         writeTx.merge(LogicalDatastoreType.CONFIGURATION, CarsModel.BASE_PATH, invalidData);
454
455         try {
456             writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
457             fail("Expected TransactionCommitFailedException");
458         } catch (TransactionCommitFailedException e) {
459             // Expected
460         }
461
462         verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
463
464         txChain.close();
465         broker.close();
466     }
467
468     @Test
469     public void testChainedTransactionFailureWithMultipleShards() throws Exception {
470         initDatastoresWithCarsAndPeople("testChainedTransactionFailureWithMultipleShards");
471
472         ConcurrentDOMDataBroker broker = new ConcurrentDOMDataBroker(
473                 ImmutableMap.<LogicalDatastoreType, DOMStore>builder().put(
474                         LogicalDatastoreType.CONFIGURATION, followerDistributedDataStore).build(),
475                         MoreExecutors.directExecutor());
476
477         TransactionChainListener listener = Mockito.mock(TransactionChainListener.class);
478         DOMTransactionChain txChain = broker.createTransactionChain(listener);
479
480         DOMDataWriteTransaction writeTx = txChain.newWriteOnlyTransaction();
481
482         writeTx.put(LogicalDatastoreType.CONFIGURATION, PeopleModel.BASE_PATH, PeopleModel.emptyContainer());
483
484         ContainerNode invalidData = ImmutableContainerNodeBuilder.create().withNodeIdentifier(
485                 new YangInstanceIdentifier.NodeIdentifier(CarsModel.BASE_QNAME)).
486                     withChild(ImmutableNodes.leafNode(TestModel.JUNK_QNAME, "junk")).build();
487
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);
491
492         try {
493             writeTx.submit().checkedGet(5, TimeUnit.SECONDS);
494             fail("Expected TransactionCommitFailedException");
495         } catch (TransactionCommitFailedException e) {
496             // Expected
497         }
498
499         verify(listener, timeout(5000)).onTransactionChainFailed(eq(txChain), eq(writeTx), any(Throwable.class));
500
501         txChain.close();
502         broker.close();
503     }
504
505     @Test
506     public void testSingleShardTransactionsWithLeaderChanges() throws Exception {
507         String testName = "testSingleShardTransactionsWithLeaderChanges";
508         initDatastoresWithCars(testName);
509
510         String followerCarShardName = "member-2-shard-cars-" + testName;
511         InMemoryJournal.addWriteMessagesCompleteLatch(followerCarShardName, 1, ApplyJournalEntries.class );
512
513         // Write top-level car container from the follower so it uses a remote Tx.
514
515         DOMStoreWriteTransaction writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
516
517         writeTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
518         writeTx.write(CarsModel.CAR_LIST_PATH, CarsModel.newCarMapNode());
519
520         followerTestKit.doCommit(writeTx.ready());
521
522         InMemoryJournal.waitForWriteMessagesComplete(followerCarShardName);
523
524         // Switch the leader to the follower
525
526         sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
527                 shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
528
529         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
530
531         followerTestKit.waitUntilNoLeader(followerDistributedDataStore.getActorContext(), CARS);
532
533         leaderSystem = ActorSystem.create("cluster-test", ConfigFactory.load().getConfig("Member1"));
534         Cluster.get(leaderSystem).join(MEMBER_2_ADDRESS);
535
536         DatastoreContext.Builder newMember1Builder = DatastoreContext.newBuilder().
537                 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
538         IntegrationTestKit newMember1TestKit = new IntegrationTestKit(leaderSystem, newMember1Builder);
539
540         try (DistributedDataStore ds =
541                 newMember1TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CARS_ONLY_1_2, false, CARS)) {
542
543             followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), CARS);
544
545             // Write a car entry to the new leader - should switch to local Tx
546
547             writeTx = followerDistributedDataStore.newWriteOnlyTransaction();
548
549             MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
550             YangInstanceIdentifier car1Path = CarsModel.newCarPath("optima");
551             writeTx.merge(car1Path, car1);
552
553             followerTestKit.doCommit(writeTx.ready());
554
555             verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car1);
556         }
557     }
558
559     @SuppressWarnings("unchecked")
560     @Test
561     public void testReadyLocalTransactionForwardedToLeader() throws Exception {
562         initDatastoresWithCars("testReadyLocalTransactionForwardedToLeader");
563         followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), "cars");
564
565         Optional<ActorRef> carsFollowerShard = followerDistributedDataStore.getActorContext().findLocalShard("cars");
566         assertEquals("Cars follower shard found", true, carsFollowerShard.isPresent());
567
568         TipProducingDataTree dataTree = InMemoryDataTreeFactory.getInstance().create(TreeType.OPERATIONAL);
569         dataTree.setSchemaContext(SchemaContextHelper.full());
570
571         // Send a tx with immediate commit.
572
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);
576
577         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
578         new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
579         modification.ready();
580
581         ReadyLocalTransaction readyLocal = new ReadyLocalTransaction(tx1 , modification, true);
582
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());
587         }
588
589         assertEquals("Response type", CommitTransactionReply.class, resp.getClass());
590
591         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1);
592
593         // Send another tx without immediate commit.
594
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();
599
600         readyLocal = new ReadyLocalTransaction(tx2 , modification, false);
601
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());
606         }
607
608         assertEquals("Response type", ReadyTransactionReply.class, resp.getClass());
609
610         ActorSelection txActor = leaderDistributedDataStore.getActorContext().actorSelection(
611                 ((ReadyTransactionReply)resp).getCohortPath());
612
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);
621
622         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
623     }
624
625     @SuppressWarnings("unchecked")
626     @Test
627     public void testForwardedReadyTransactionForwardedToLeader() throws Exception {
628         initDatastoresWithCars("testForwardedReadyTransactionForwardedToLeader");
629         followerTestKit.waitUntilLeader(followerDistributedDataStore.getActorContext(), "cars");
630
631         Optional<ActorRef> carsFollowerShard = followerDistributedDataStore.getActorContext().findLocalShard("cars");
632         assertEquals("Cars follower shard found", true, carsFollowerShard.isPresent());
633
634         carsFollowerShard.get().tell(GetShardDataTree.INSTANCE, followerTestKit.getRef());
635         DataTree dataTree = followerTestKit.expectMsgClass(DataTree.class);
636
637         // Send a tx with immediate commit.
638
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);
642
643         MapEntryNode car1 = CarsModel.newCarEntry("optima", BigInteger.valueOf(20000));
644         new WriteModification(CarsModel.newCarPath("optima"), car1).apply(modification);
645
646         ForwardedReadyTransaction forwardedReady = new ForwardedReadyTransaction(tx1,
647                 DataStoreVersions.CURRENT_VERSION, new ReadWriteShardDataTreeTransaction(
648                         Mockito.mock(ShardDataTreeTransactionParent.class), tx1, modification), true);
649
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());
654         }
655
656         assertEquals("Response type", CommitTransactionReply.class, resp.getClass());
657
658         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1);
659
660         // Send another tx without immediate commit.
661
662         modification = dataTree.takeSnapshot().newModification();
663         MapEntryNode car2 = CarsModel.newCarEntry("sportage", BigInteger.valueOf(30000));
664         new WriteModification(CarsModel.newCarPath("sportage"), car2).apply(modification);
665
666         forwardedReady = new ForwardedReadyTransaction(tx2,
667                 DataStoreVersions.CURRENT_VERSION, new ReadWriteShardDataTreeTransaction(
668                         Mockito.mock(ShardDataTreeTransactionParent.class), tx2, modification), false);
669
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());
674         }
675
676         assertEquals("Response type", ReadyTransactionReply.class, resp.getClass());
677
678         ActorSelection txActor = leaderDistributedDataStore.getActorContext().actorSelection(
679                 ((ReadyTransactionReply)resp).getCohortPath());
680
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);
689
690         verifyCars(leaderDistributedDataStore.newReadOnlyTransaction(), car1, car2);
691     }
692
693     @Test
694     public void testTransactionForwardedToLeaderAfterRetry() throws Exception {
695         followerDatastoreContextBuilder.shardBatchedModificationCount(2);
696         leaderDatastoreContextBuilder.shardBatchedModificationCount(2);
697         initDatastoresWithCarsAndPeople("testTransactionForwardedToLeaderAfterRetry");
698
699         // Do an initial write to get the primary shard info cached.
700
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());
705
706         // Wait for the commit to be replicated to the follower.
707
708         MemberNode.verifyRaftState(followerDistributedDataStore, "cars", new RaftStateVerifier() {
709             @Override
710             public void verify(OnDemandRaftState raftState) {
711                 assertEquals("getLastApplied", 0, raftState.getLastApplied());
712             }
713         });
714
715         MemberNode.verifyRaftState(followerDistributedDataStore, "people", new RaftStateVerifier() {
716             @Override
717             public void verify(OnDemandRaftState raftState) {
718                 assertEquals("getLastApplied", 0, raftState.getLastApplied());
719             }
720         });
721
722         // Prepare, ready and canCommit a WO tx that writes to 2 shards. This will become the current tx in
723         // the leader shard.
724
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);
731
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.
734
735         DOMStoreWriteTransaction writeTx2 = followerDistributedDataStore.newWriteOnlyTransaction();
736         LinkedList<MapEntryNode> cars = new LinkedList<>();
737         int carIndex = 1;
738         cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
739         writeTx2.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
740         carIndex++;
741         NormalizedNode<?, ?> people = PeopleModel.newPersonMapNode();
742         writeTx2.write(PeopleModel.PERSON_LIST_PATH, people);
743         DOMStoreThreePhaseCommitCohort writeTx2Cohort = writeTx2.ready();
744
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
748         // sent on ready.
749
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());
754         }
755
756         // Prepare another WO that writes to a single shard. This will send a single BatchedModidifications
757         // message on ready.
758
759         DOMStoreWriteTransaction writeTx4 = followerDistributedDataStore.newWriteOnlyTransaction();
760         cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
761         writeTx4.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
762         carIndex++;
763
764         // Prepare a RW tx that will create a tx actor and send a ForwardedReadyTransaciton message to the
765         // leader shard on ready.
766
767         DOMStoreReadWriteTransaction readWriteTx = followerDistributedDataStore.newReadWriteTransaction();
768         cars.add(CarsModel.newCarEntry("car" + carIndex, BigInteger.valueOf(carIndex)));
769         readWriteTx.write(CarsModel.newCarPath("car" + carIndex), cars.getLast());
770
771         IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
772             @Override
773             public void verify(ShardStats stats) {
774                 assertEquals("getReadWriteTransactionCount", 1, stats.getReadWriteTransactionCount());
775             }
776         });
777
778         // Disable elections on the leader so it switches to follower.
779
780         sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
781                 customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName()).
782                 shardElectionTimeoutFactor(10));
783
784         leaderTestKit.waitUntilNoLeader(leaderDistributedDataStore.getActorContext(), "cars");
785
786         // Submit all tx's - the messages should get queued for retry.
787
788         ListenableFuture<Boolean> writeTx2CanCommit = writeTx2Cohort.canCommit();
789         DOMStoreThreePhaseCommitCohort writeTx3Cohort = writeTx3.ready();
790         DOMStoreThreePhaseCommitCohort writeTx4Cohort = writeTx4.ready();
791         DOMStoreThreePhaseCommitCohort rwTxCohort = readWriteTx.ready();
792
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.
795
796         sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
797                 customRaftPolicyImplementation(null).shardElectionTimeoutFactor(1));
798
799         followerTestKit.doCommit(writeTx1CanCommit, writeTx1Cohort);
800         followerTestKit.doCommit(writeTx2CanCommit, writeTx2Cohort);
801         followerTestKit.doCommit(writeTx3Cohort);
802         followerTestKit.doCommit(writeTx4Cohort);
803         followerTestKit.doCommit(rwTxCohort);
804
805         DOMStoreReadTransaction readTx = leaderDistributedDataStore.newReadOnlyTransaction();
806         verifyCars(readTx, cars.toArray(new MapEntryNode[cars.size()]));
807         verifyNode(readTx, PeopleModel.PERSON_LIST_PATH, people);
808     }
809
810     @Test
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);
816
817         IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System, followerDatastoreContextBuilder);
818         try (DistributedDataStore follower2DistributedDataStore = follower2TestKit.setupDistributedDataStore(testName,
819                 MODULE_SHARDS_CARS_PEOPLE_1_2_3, false)) {
820
821             // Create and submit a couple tx's so they're pending.
822
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();
828
829             IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
830                 @Override
831                 public void verify(ShardStats stats) {
832                     assertEquals("getTxCohortCacheSize", 1, stats.getTxCohortCacheSize());
833                 }
834             });
835
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();
840
841             IntegrationTestKit.verifyShardStats(leaderDistributedDataStore, "cars", new ShardStatsVerifier() {
842                 @Override
843                 public void verify(ShardStats stats) {
844                     assertEquals("getTxCohortCacheSize", 2, stats.getTxCohortCacheSize());
845                 }
846             });
847
848             // Gracefully stop the leader via a Shutdown message.
849
850             sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
851                 shardElectionTimeoutFactor(100));
852
853             FiniteDuration duration = FiniteDuration.create(5, TimeUnit.SECONDS);
854             Future<ActorRef> future = leaderDistributedDataStore.getActorContext().findLocalShardAsync("cars");
855             ActorRef leaderActor = Await.result(future, duration);
856
857             Future<Boolean> stopFuture = Patterns.gracefulStop(leaderActor, duration, Shutdown.INSTANCE);
858
859             // Commit the 2 transactions. They should finish and succeed.
860
861             followerTestKit.doCommit(cohort1);
862             followerTestKit.doCommit(cohort2);
863
864             // Wait for the leader actor stopped.
865
866             Boolean stopped = Await.result(stopFuture, duration);
867             assertEquals("Stopped", Boolean.TRUE, stopped);
868
869             // Verify leadership was transferred by reading the committed data from the other nodes.
870
871             verifyCars(followerDistributedDataStore.newReadOnlyTransaction(), car);
872             verifyCars(follower2DistributedDataStore.newReadOnlyTransaction(), car);
873         }
874     }
875
876     @Test
877     public void testTransactionWithIsolatedLeader() throws Throwable {
878         leaderDatastoreContextBuilder.shardIsolatedLeaderCheckIntervalInMillis(200);
879         String testName = "testTransactionWithIsolatedLeader";
880         initDatastoresWithCars(testName);
881
882         DOMStoreWriteTransaction failWriteTx = leaderDistributedDataStore.newWriteOnlyTransaction();
883         failWriteTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
884
885         DOMStoreWriteTransaction successWriteTx = leaderDistributedDataStore.newWriteOnlyTransaction();
886         successWriteTx.merge(CarsModel.BASE_PATH, CarsModel.emptyContainer());
887
888         followerTestKit.watch(followerDistributedDataStore.getActorContext().getShardManager());
889         followerDistributedDataStore.close();
890         followerTestKit.expectTerminated(followerDistributedDataStore.getActorContext().getShardManager());
891
892         MemberNode.verifyRaftState(leaderDistributedDataStore, "cars", new RaftStateVerifier() {
893             @Override
894             public void verify(OnDemandRaftState raftState) {
895                 assertEquals("getRaftState", "IsolatedLeader", raftState.getRaftState());
896             }
897         });
898
899         try {
900             leaderTestKit.doCommit(failWriteTx.ready());
901             fail("Expected NoShardLeaderException");
902         } catch (ExecutionException e) {
903             assertEquals("getCause", NoShardLeaderException.class, e.getCause().getClass());
904         }
905
906         sendDatastoreContextUpdate(leaderDistributedDataStore, leaderDatastoreContextBuilder.
907                 shardElectionTimeoutFactor(100));
908
909         DOMStoreThreePhaseCommitCohort writeTxCohort = successWriteTx.ready();
910
911         followerDistributedDataStore = followerTestKit.setupDistributedDataStore(testName,
912                 MODULE_SHARDS_CARS_ONLY_1_2, false, CARS);
913
914         leaderTestKit.doCommit(writeTxCohort);
915     }
916
917     @Test(expected=AskTimeoutException.class)
918     public void testTransactionWithShardLeaderNotResponding() throws Throwable {
919         initDatastoresWithCars("testTransactionWithShardLeaderNotResponding");
920
921         // Do an initial read to get the primary shard info cached.
922
923         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
924         readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
925
926         // Shutdown the leader and try to create a new tx.
927
928         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
929
930         followerDatastoreContextBuilder.operationTimeoutInMillis(50).shardElectionTimeoutFactor(1);
931         sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder);
932
933         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
934
935         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
936
937         try {
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();
944         }
945     }
946
947     @Test(expected=NoShardLeaderException.class)
948     public void testTransactionWithCreateTxFailureDueToNoLeader() throws Throwable {
949         initDatastoresWithCars("testTransactionWithCreateTxFailureDueToNoLeader");
950
951         // Do an initial read to get the primary shard info cached.
952
953         DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
954         readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
955
956         // Shutdown the leader and try to create a new tx.
957
958         JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
959
960         Uninterruptibles.sleepUninterruptibly(100, TimeUnit.MILLISECONDS);
961
962         sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
963                 operationTimeoutInMillis(10).shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
964
965         DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
966
967         rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
968
969         try {
970             followerTestKit.doCommit(rwTx.ready());
971         } catch (ExecutionException e) {
972             throw e.getCause();
973         }
974     }
975
976     @Test
977     public void testTransactionRetryWithInitialAskTimeoutExOnCreateTx() throws Exception {
978         String testName = "testTransactionRetryWithInitialAskTimeoutExOnCreateTx";
979         initDatastores(testName, MODULE_SHARDS_CARS_PEOPLE_1_2_3, CARS);
980
981         DatastoreContext.Builder follower2DatastoreContextBuilder = DatastoreContext.newBuilder().
982                 shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5);
983         IntegrationTestKit follower2TestKit = new IntegrationTestKit(follower2System, follower2DatastoreContextBuilder);
984
985         try (DistributedDataStore ds =
986                 follower2TestKit.setupDistributedDataStore(testName, MODULE_SHARDS_CARS_PEOPLE_1_2_3, false, CARS)) {
987
988             followerTestKit.waitForMembersUp("member-1", "member-3");
989             follower2TestKit.waitForMembersUp("member-1", "member-2");
990
991             // Do an initial read to get the primary shard info cached.
992
993             DOMStoreReadTransaction readTx = followerDistributedDataStore.newReadOnlyTransaction();
994             readTx.read(CarsModel.BASE_PATH).checkedGet(5, TimeUnit.SECONDS);
995
996             // Shutdown the leader and try to create a new tx.
997
998             JavaTestKit.shutdownActorSystem(leaderSystem, null, true);
999
1000             sendDatastoreContextUpdate(followerDistributedDataStore, followerDatastoreContextBuilder.
1001                 operationTimeoutInMillis(500).shardElectionTimeoutFactor(1).customRaftPolicyImplementation(null));
1002
1003             DOMStoreReadWriteTransaction rwTx = followerDistributedDataStore.newReadWriteTransaction();
1004
1005             rwTx.write(CarsModel.BASE_PATH, CarsModel.emptyContainer());
1006
1007             followerTestKit.doCommit(rwTx.ready());
1008         }
1009     }
1010
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>() {
1015             @Override
1016             public DatastoreContext answer(InvocationOnMock invocation) {
1017                 return newBuilder.build();
1018             }
1019         };
1020         Mockito.doAnswer(answer).when(mockContextFactory).getBaseDatastoreContext();
1021         Mockito.doAnswer(answer).when(mockContextFactory).getShardDatastoreContext(Mockito.anyString());
1022         dataStore.onDatastoreContextUpdated(mockContextFactory);
1023     }
1024 }

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