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.entityownership;
10 import static org.junit.Assert.assertEquals;
11 import static org.junit.Assert.assertNull;
12 import static org.junit.Assert.assertThat;
13 import static org.junit.Assert.assertTrue;
14 import static org.mockito.AdditionalMatchers.or;
15 import static org.mockito.Mockito.doNothing;
16 import static org.mockito.Mockito.never;
17 import static org.mockito.Mockito.reset;
18 import static org.mockito.Mockito.timeout;
19 import static org.mockito.Mockito.verify;
20 import static org.opendaylight.controller.cluster.datastore.MemberNode.verifyRaftState;
21 import static org.opendaylight.controller.cluster.datastore.entityownership.AbstractEntityOwnershipTest.ownershipChange;
22 import static org.opendaylight.controller.cluster.datastore.entityownership.DistributedEntityOwnershipService.ENTITY_OWNERSHIP_SHARD_NAME;
23 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.CANDIDATE_NAME_NODE_ID;
24 import static org.opendaylight.controller.cluster.datastore.entityownership.EntityOwnersModel.entityPath;
26 import akka.actor.ActorRef;
27 import akka.actor.Status.Failure;
28 import akka.actor.Status.Success;
29 import akka.cluster.Cluster;
30 import akka.pattern.Patterns;
31 import akka.util.Timeout;
32 import com.google.common.base.Stopwatch;
33 import com.google.common.collect.ImmutableMap;
34 import com.google.common.collect.Iterables;
35 import com.google.common.collect.Lists;
36 import com.google.common.util.concurrent.Uninterruptibles;
37 import java.util.ArrayList;
38 import java.util.Arrays;
39 import java.util.Collection;
40 import java.util.List;
41 import java.util.Optional;
42 import java.util.concurrent.TimeUnit;
43 import org.junit.After;
44 import org.junit.Before;
45 import org.junit.Test;
46 import org.mockito.ArgumentCaptor;
47 import org.mockito.Mock;
48 import org.mockito.Mockito;
49 import org.mockito.MockitoAnnotations;
50 import org.mockito.exceptions.base.MockitoException;
51 import org.opendaylight.controller.cluster.datastore.AbstractDataStore;
52 import org.opendaylight.controller.cluster.datastore.DatastoreContext;
53 import org.opendaylight.controller.cluster.datastore.IntegrationTestKit;
54 import org.opendaylight.controller.cluster.datastore.MemberNode;
55 import org.opendaylight.controller.cluster.datastore.entityownership.selectionstrategy.EntityOwnerSelectionStrategyConfig;
56 import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
57 import org.opendaylight.controller.cluster.datastore.messages.ChangeShardMembersVotingStatus;
58 import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
59 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
60 import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore;
61 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
62 import org.opendaylight.mdsal.eos.common.api.EntityOwnershipState;
63 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
64 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipCandidateRegistration;
65 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipChange;
66 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListener;
67 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipService;
68 import org.opendaylight.yang.gen.v1.urn.opendaylight.params.xml.ns.yang.controller.md.sal.clustering.entity.owners.rev150804.entity.owners.entity.type.entity.Candidate;
69 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
70 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
71 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
72 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
73 import scala.concurrent.Await;
74 import scala.concurrent.Future;
75 import scala.concurrent.duration.FiniteDuration;
78 * End-to-end integration tests for the entity ownership functionality.
80 * @author Thomas Pantelis
82 public class DistributedEntityOwnershipIntegrationTest {
83 private static final String MODULE_SHARDS_CONFIG = "module-shards-default.conf";
84 private static final String MODULE_SHARDS_5_NODE_CONFIG = "module-shards-default-5-node.conf";
85 private static final String MODULE_SHARDS_MEMBER_1_CONFIG = "module-shards-default-member-1.conf";
86 private static final String ENTITY_TYPE1 = "entityType1";
87 private static final String ENTITY_TYPE2 = "entityType2";
88 private static final DOMEntity ENTITY1 = new DOMEntity(ENTITY_TYPE1, "entity1");
89 private static final DOMEntity ENTITY1_2 = new DOMEntity(ENTITY_TYPE2, "entity1");
90 private static final DOMEntity ENTITY2 = new DOMEntity(ENTITY_TYPE1, "entity2");
91 private static final DOMEntity ENTITY3 = new DOMEntity(ENTITY_TYPE1, "entity3");
92 private static final DOMEntity ENTITY4 = new DOMEntity(ENTITY_TYPE1, "entity4");
93 private static final SchemaContext SCHEMA_CONTEXT = SchemaContextHelper.entityOwners();
95 private final DatastoreContext.Builder leaderDatastoreContextBuilder =
96 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5)
97 .shardIsolatedLeaderCheckIntervalInMillis(1000000);
99 private final DatastoreContext.Builder followerDatastoreContextBuilder =
100 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(10000);
102 private final List<MemberNode> memberNodes = new ArrayList<>();
105 private DOMEntityOwnershipListener leaderMockListener;
108 private DOMEntityOwnershipListener leaderMockListener2;
111 private DOMEntityOwnershipListener follower1MockListener;
114 private DOMEntityOwnershipListener follower2MockListener;
117 public void setUp() {
118 MockitoAnnotations.initMocks(this);
119 InMemoryJournal.clear();
120 InMemorySnapshotStore.clear();
124 public void tearDown() {
125 for (MemberNode m : Lists.reverse(memberNodes)) {
131 private static DistributedEntityOwnershipService newOwnershipService(final AbstractDataStore datastore) {
132 return DistributedEntityOwnershipService.start(datastore.getActorContext(),
133 EntityOwnerSelectionStrategyConfig.newBuilder().build());
137 public void testFunctionalityWithThreeNodes() throws Exception {
138 String name = "testFunctionalityWithThreeNodes";
139 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
140 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
141 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
143 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
144 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
145 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
147 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
148 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
149 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
151 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
153 leaderDistributedDataStore.waitTillReady();
154 follower1Node.configDataStore().waitTillReady();
155 follower2Node.configDataStore().waitTillReady();
157 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
158 final DOMEntityOwnershipService follower1EntityOwnershipService =
159 newOwnershipService(follower1Node.configDataStore());
160 final DOMEntityOwnershipService follower2EntityOwnershipService =
161 newOwnershipService(follower2Node.configDataStore());
163 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
165 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
166 leaderEntityOwnershipService.registerListener(ENTITY_TYPE2, leaderMockListener2);
167 follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener);
169 // Register leader candidate for entity1 and verify it becomes owner
171 leaderEntityOwnershipService.registerCandidate(ENTITY1);
172 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true));
173 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
174 reset(leaderMockListener, follower1MockListener);
176 verifyGetOwnershipState(leaderEntityOwnershipService, ENTITY1, EntityOwnershipState.IS_OWNER);
177 verifyGetOwnershipState(follower1EntityOwnershipService, ENTITY1, EntityOwnershipState.OWNED_BY_OTHER);
179 // Register leader candidate for entity1_2 (same id, different type) and verify it becomes owner
181 leaderEntityOwnershipService.registerCandidate(ENTITY1_2);
182 verify(leaderMockListener2, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1_2, false, true, true));
183 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
184 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1_2));
185 reset(leaderMockListener2);
187 // Register follower1 candidate for entity1 and verify it gets added but doesn't become owner
189 follower1EntityOwnershipService.registerCandidate(ENTITY1);
190 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1", "member-2");
191 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
192 verifyOwner(follower2Node.configDataStore(), ENTITY1, "member-1");
193 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
194 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
195 verify(follower1MockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
197 // Register follower1 candidate for entity2 and verify it becomes owner
199 final DOMEntityOwnershipCandidateRegistration follower1Entity2Reg =
200 follower1EntityOwnershipService.registerCandidate(ENTITY2);
201 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
202 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true));
203 verifyOwner(follower2Node.configDataStore(), ENTITY2, "member-2");
204 reset(leaderMockListener, follower1MockListener);
206 // Register follower2 candidate for entity2 and verify it gets added but doesn't become owner
208 follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener);
209 verify(follower2MockListener, timeout(5000).times(2)).ownershipChanged(or(
210 ownershipChange(ENTITY1, false, false, true), ownershipChange(ENTITY2, false, false, true)));
212 follower2EntityOwnershipService.registerCandidate(ENTITY2);
213 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-2", "member-3");
214 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-2");
216 // Unregister follower1 candidate for entity2 and verify follower2 becomes owner
218 follower1Entity2Reg.close();
219 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-3");
220 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-3");
221 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, true));
222 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true));
224 // Depending on timing, follower2MockListener could get ownershipChanged with "false, false, true" if
225 // if the original ownership change with "member-2 is replicated to follower2 after the listener is
227 Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
228 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
230 // Register follower1 candidate for entity3 and verify it becomes owner
232 follower1EntityOwnershipService.registerCandidate(ENTITY3);
233 verifyOwner(leaderDistributedDataStore, ENTITY3, "member-2");
234 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, true, true));
235 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true));
236 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true));
238 // Register follower2 candidate for entity4 and verify it becomes owner
240 follower2EntityOwnershipService.registerCandidate(ENTITY4);
241 verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3");
242 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, true, true));
243 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
244 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
245 reset(follower1MockListener, follower2MockListener);
247 // Register follower1 candidate for entity4 and verify it gets added but doesn't become owner
249 follower1EntityOwnershipService.registerCandidate(ENTITY4);
250 verifyCandidates(leaderDistributedDataStore, ENTITY4, "member-3", "member-2");
251 verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3");
253 // Shutdown follower2 and verify it's owned entities (entity 4) get re-assigned
255 reset(leaderMockListener, follower1MockListener);
256 follower2Node.cleanup();
258 verify(follower1MockListener, timeout(15000)).ownershipChanged(ownershipChange(ENTITY4, false, true, true));
259 verify(leaderMockListener, timeout(15000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
261 // Register leader candidate for entity2 and verify it becomes owner
263 DOMEntityOwnershipCandidateRegistration leaderEntity2Reg =
264 leaderEntityOwnershipService.registerCandidate(ENTITY2);
265 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
266 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
268 // Unregister leader candidate for entity2 and verify the owner is cleared
270 leaderEntity2Reg.close();
271 verifyOwner(leaderDistributedDataStore, ENTITY2, "");
272 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, false));
273 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, false));
277 public void testLeaderEntityOwnersReassignedAfterShutdown() throws Exception {
278 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
279 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
281 String name = "testLeaderEntityOwnersReassignedAfterShutdown";
282 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
283 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
284 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
286 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
287 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
288 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
290 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
291 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
292 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
294 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
296 leaderDistributedDataStore.waitTillReady();
297 follower1Node.configDataStore().waitTillReady();
298 follower2Node.configDataStore().waitTillReady();
300 follower1Node.waitForMembersUp("member-1", "member-3");
302 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
303 final DOMEntityOwnershipService follower1EntityOwnershipService =
304 newOwnershipService(follower1Node.configDataStore());
305 final DOMEntityOwnershipService follower2EntityOwnershipService =
306 newOwnershipService(follower2Node.configDataStore());
308 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
310 // Register follower1 candidate for entity1 and verify it becomes owner
312 follower1EntityOwnershipService.registerCandidate(ENTITY1);
313 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
315 // Register leader candidate for entity1
317 leaderEntityOwnershipService.registerCandidate(ENTITY1);
318 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
319 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
321 // Register leader candidate for entity2 and verify it becomes owner
323 leaderEntityOwnershipService.registerCandidate(ENTITY2);
324 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
326 // Register follower2 candidate for entity2
328 follower2EntityOwnershipService.registerCandidate(ENTITY2);
329 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
330 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
332 // Re-enable elections on all remaining followers so one becomes the new leader
334 ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
335 ENTITY_OWNERSHIP_SHARD_NAME);
336 follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
337 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
339 ActorRef follower2Shard = IntegrationTestKit.findLocalShard(follower2Node.configDataStore().getActorContext(),
340 ENTITY_OWNERSHIP_SHARD_NAME);
341 follower2Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
342 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
344 // Shutdown the leader and verify its removed from the candidate list
346 leaderNode.cleanup();
347 follower1Node.waitForMemberDown("member-1");
348 follower2Node.waitForMemberDown("member-1");
350 // Verify the prior leader's entity owners are re-assigned.
352 verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
353 verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3");
354 verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
355 verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
359 public void testLeaderAndFollowerEntityOwnersReassignedAfterShutdown() throws Exception {
360 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
361 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
363 String name = "testLeaderAndFollowerEntityOwnersReassignedAfterShutdown";
364 final MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1")
365 .useAkkaArtery(false).testName(name)
366 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
367 .createOperDatastore(false).datastoreContextBuilder(leaderDatastoreContextBuilder).build();
369 final MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2")
370 .useAkkaArtery(false).testName(name)
371 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
372 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
374 final MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3")
375 .useAkkaArtery(false).testName(name)
376 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
377 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
379 final MemberNode follower3Node = MemberNode.builder(memberNodes).akkaConfig("Member4")
380 .useAkkaArtery(false).testName(name)
381 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
382 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
384 final MemberNode follower4Node = MemberNode.builder(memberNodes).akkaConfig("Member5")
385 .useAkkaArtery(false).testName(name)
386 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
387 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
389 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
391 leaderDistributedDataStore.waitTillReady();
392 follower1Node.configDataStore().waitTillReady();
393 follower2Node.configDataStore().waitTillReady();
394 follower3Node.configDataStore().waitTillReady();
395 follower4Node.configDataStore().waitTillReady();
397 leaderNode.waitForMembersUp("member-2", "member-3", "member-4", "member-5");
398 follower1Node.waitForMembersUp("member-1", "member-3", "member-4", "member-5");
400 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
401 final DOMEntityOwnershipService follower1EntityOwnershipService =
402 newOwnershipService(follower1Node.configDataStore());
403 final DOMEntityOwnershipService follower2EntityOwnershipService =
404 newOwnershipService(follower2Node.configDataStore());
405 final DOMEntityOwnershipService follower3EntityOwnershipService =
406 newOwnershipService(follower3Node.configDataStore());
407 newOwnershipService(follower4Node.configDataStore());
409 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
411 // Register follower1 candidate for entity1 and verify it becomes owner
413 follower1EntityOwnershipService.registerCandidate(ENTITY1);
414 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
416 // Register leader candidate for entity1
418 leaderEntityOwnershipService.registerCandidate(ENTITY1);
419 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
420 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
422 // Register leader candidate for entity2 and verify it becomes owner
424 leaderEntityOwnershipService.registerCandidate(ENTITY2);
425 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
427 // Register follower2 candidate for entity2
429 follower2EntityOwnershipService.registerCandidate(ENTITY2);
430 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
431 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
433 // Register follower3 as a candidate for entity2 as well
435 follower3EntityOwnershipService.registerCandidate(ENTITY2);
436 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3", "member-4");
437 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
439 // Re-enable elections on all remaining followers so one becomes the new leader
441 ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
442 ENTITY_OWNERSHIP_SHARD_NAME);
443 follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
444 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
446 ActorRef follower2Shard = IntegrationTestKit.findLocalShard(follower2Node.configDataStore().getActorContext(),
447 ENTITY_OWNERSHIP_SHARD_NAME);
448 follower2Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
449 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
451 ActorRef follower4Shard = IntegrationTestKit.findLocalShard(follower4Node.configDataStore().getActorContext(),
452 ENTITY_OWNERSHIP_SHARD_NAME);
453 follower4Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
454 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
456 // Shutdown the leader and follower3
458 leaderNode.cleanup();
459 follower3Node.cleanup();
461 follower1Node.waitForMemberDown("member-1");
462 follower1Node.waitForMemberDown("member-4");
463 follower2Node.waitForMemberDown("member-1");
464 follower2Node.waitForMemberDown("member-4");
465 follower4Node.waitForMemberDown("member-1");
466 follower4Node.waitForMemberDown("member-4");
468 // Verify the prior leader's and follower3 entity owners are re-assigned.
470 verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
471 verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3", "member-4");
472 verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
473 verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
477 * Reproduces bug <a href="https://bugs.opendaylight.org/show_bug.cgi?id=4554">4554</a>.
480 public void testCloseCandidateRegistrationInQuickSuccession() throws Exception {
481 String name = "testCloseCandidateRegistrationInQuickSuccession";
482 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
483 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
484 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
486 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
487 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
488 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
490 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
491 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
492 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
494 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
496 leaderDistributedDataStore.waitTillReady();
497 follower1Node.configDataStore().waitTillReady();
498 follower2Node.configDataStore().waitTillReady();
500 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
501 final DOMEntityOwnershipService follower1EntityOwnershipService =
502 newOwnershipService(follower1Node.configDataStore());
503 final DOMEntityOwnershipService follower2EntityOwnershipService =
504 newOwnershipService(follower2Node.configDataStore());
506 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
508 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
509 follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener);
510 follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener);
512 final DOMEntityOwnershipCandidateRegistration candidate1 =
513 leaderEntityOwnershipService.registerCandidate(ENTITY1);
514 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true));
516 final DOMEntityOwnershipCandidateRegistration candidate2 =
517 follower1EntityOwnershipService.registerCandidate(ENTITY1);
518 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
520 final DOMEntityOwnershipCandidateRegistration candidate3 =
521 follower2EntityOwnershipService.registerCandidate(ENTITY1);
522 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
524 Mockito.reset(leaderMockListener, follower1MockListener, follower2MockListener);
526 ArgumentCaptor<DOMEntityOwnershipChange> leaderChangeCaptor =
527 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
528 ArgumentCaptor<DOMEntityOwnershipChange> follower1ChangeCaptor =
529 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
530 ArgumentCaptor<DOMEntityOwnershipChange> follower2ChangeCaptor =
531 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
532 doNothing().when(leaderMockListener).ownershipChanged(leaderChangeCaptor.capture());
533 doNothing().when(follower1MockListener).ownershipChanged(follower1ChangeCaptor.capture());
534 doNothing().when(follower2MockListener).ownershipChanged(follower2ChangeCaptor.capture());
540 boolean passed = false;
541 for (int i = 0; i < 100; i++) {
542 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
543 final Optional<EntityOwnershipState> leaderState = leaderEntityOwnershipService.getOwnershipState(ENTITY1);
544 final Optional<EntityOwnershipState> follower1State =
545 follower1EntityOwnershipService.getOwnershipState(ENTITY1);
546 final Optional<EntityOwnershipState> follower2State =
547 follower2EntityOwnershipService.getOwnershipState(ENTITY1);
548 final Optional<DOMEntityOwnershipChange> leaderChange = getValueSafely(leaderChangeCaptor);
549 final Optional<DOMEntityOwnershipChange> follower1Change = getValueSafely(follower1ChangeCaptor);
550 final Optional<DOMEntityOwnershipChange> follower2Change = getValueSafely(follower2ChangeCaptor);
551 if (!leaderState.isPresent() || leaderState.get() == EntityOwnershipState.NO_OWNER
552 && follower1State.isPresent() && follower1State.get() == EntityOwnershipState.NO_OWNER
553 && follower2State.isPresent() && follower2State.get() == EntityOwnershipState.NO_OWNER
554 && leaderChange.isPresent() && !leaderChange.get().getState().hasOwner()
555 && follower1Change.isPresent() && !follower1Change.get().getState().hasOwner()
556 && follower2Change.isPresent() && !follower2Change.get().getState().hasOwner()) {
562 assertTrue("No ownership change message was sent with hasOwner=false", passed);
565 private static Optional<DOMEntityOwnershipChange> getValueSafely(ArgumentCaptor<DOMEntityOwnershipChange> captor) {
567 return Optional.ofNullable(captor.getValue());
568 } catch (MockitoException e) {
569 // No value was captured
570 return Optional.empty();
575 * Tests bootstrapping the entity-ownership shard when there's no shards initially configured for local
576 * member. The entity-ownership shard is initially created as inactive (ie remains a follower), requiring
577 * an AddShardReplica request to join it to an existing leader.
580 public void testEntityOwnershipShardBootstrapping() throws Exception {
581 String name = "testEntityOwnershipShardBootstrapping";
582 String moduleShardsConfig = MODULE_SHARDS_MEMBER_1_CONFIG;
583 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
584 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
585 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
587 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
588 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
590 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
592 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
593 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
594 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
596 AbstractDataStore follower1DistributedDataStore = follower1Node.configDataStore();
597 follower1DistributedDataStore.waitTillReady();
599 leaderNode.waitForMembersUp("member-2");
600 follower1Node.waitForMembersUp("member-1");
602 DOMEntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1DistributedDataStore);
604 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
606 // Register a candidate for follower1 - should get queued since follower1 has no leader
607 final DOMEntityOwnershipCandidateRegistration candidateReg =
608 follower1EntityOwnershipService.registerCandidate(ENTITY1);
609 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
610 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
612 // Add replica in follower1
613 AddShardReplica addReplica = new AddShardReplica(ENTITY_OWNERSHIP_SHARD_NAME);
614 follower1DistributedDataStore.getActorContext().getShardManager().tell(addReplica,
615 follower1Node.kit().getRef());
616 Object reply = follower1Node.kit().expectMsgAnyClassOf(follower1Node.kit().duration("5 sec"),
617 Success.class, Failure.class);
618 if (reply instanceof Failure) {
619 throw new AssertionError("AddShardReplica failed", ((Failure)reply).cause());
622 // The queued candidate registration should proceed
623 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
624 reset(leaderMockListener);
626 candidateReg.close();
627 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, false));
628 reset(leaderMockListener);
630 // Restart follower1 and verify the entity ownership shard is re-instated by registering.
631 Cluster.get(leaderNode.kit().getSystem()).down(Cluster.get(follower1Node.kit().getSystem()).selfAddress());
632 follower1Node.cleanup();
634 follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
635 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
636 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
637 follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore());
639 follower1EntityOwnershipService.registerCandidate(ENTITY1);
640 verify(leaderMockListener, timeout(20000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
642 verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME, raftState -> {
643 assertNull("Custom RaftPolicy class name", raftState.getCustomRaftPolicyClassName());
644 assertEquals("Peer count", 1, raftState.getPeerAddresses().keySet().size());
645 assertThat("Peer Id", Iterables.<String>getLast(raftState.getPeerAddresses().keySet()),
646 org.hamcrest.CoreMatchers.containsString("member-1"));
651 public void testOwnerSelectedOnRapidUnregisteringAndRegisteringOfCandidates() throws Exception {
652 String name = "testOwnerSelectedOnRapidUnregisteringAndRegisteringOfCandidates";
653 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
654 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
655 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
657 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
658 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
659 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
661 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
662 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
663 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
665 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
667 leaderDistributedDataStore.waitTillReady();
668 follower1Node.configDataStore().waitTillReady();
669 follower2Node.configDataStore().waitTillReady();
671 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
672 final DOMEntityOwnershipService follower1EntityOwnershipService =
673 newOwnershipService(follower1Node.configDataStore());
674 newOwnershipService(follower2Node.configDataStore());
676 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
678 // Register leader candidate for entity1 and verify it becomes owner
680 DOMEntityOwnershipCandidateRegistration leaderEntity1Reg =
681 leaderEntityOwnershipService.registerCandidate(ENTITY1);
683 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1");
684 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
686 leaderEntity1Reg.close();
687 follower1EntityOwnershipService.registerCandidate(ENTITY1);
689 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2");
690 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
694 public void testOwnerSelectedOnRapidRegisteringAndUnregisteringOfCandidates() throws Exception {
695 String name = "testOwnerSelectedOnRapidRegisteringAndUnregisteringOfCandidates";
696 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
697 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
698 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
700 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
701 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
702 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
704 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
705 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
706 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
708 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
710 leaderDistributedDataStore.waitTillReady();
711 follower1Node.configDataStore().waitTillReady();
712 follower2Node.configDataStore().waitTillReady();
714 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
715 final DOMEntityOwnershipService follower1EntityOwnershipService =
716 newOwnershipService(follower1Node.configDataStore());
717 newOwnershipService(follower2Node.configDataStore());
719 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
721 // Register leader candidate for entity1 and verify it becomes owner
723 final DOMEntityOwnershipCandidateRegistration leaderEntity1Reg =
724 leaderEntityOwnershipService.registerCandidate(ENTITY1);
726 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1");
727 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
729 follower1EntityOwnershipService.registerCandidate(ENTITY1);
730 leaderEntity1Reg.close();
732 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2");
733 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
737 public void testEntityOwnershipWithNonVotingMembers() throws Exception {
738 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
739 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
741 String name = "testEntityOwnershipWithNonVotingMembers";
742 final MemberNode member1LeaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1")
743 .useAkkaArtery(false).testName(name)
744 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
745 .createOperDatastore(false).datastoreContextBuilder(leaderDatastoreContextBuilder).build();
747 final MemberNode member2FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member2")
748 .useAkkaArtery(false).testName(name)
749 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
750 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
752 final MemberNode member3FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member3")
753 .useAkkaArtery(false).testName(name)
754 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
755 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
757 final MemberNode member4FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member4")
758 .useAkkaArtery(false).testName(name)
759 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
760 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
762 final MemberNode member5FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member5")
763 .useAkkaArtery(false).testName(name)
764 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
765 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
767 AbstractDataStore leaderDistributedDataStore = member1LeaderNode.configDataStore();
769 leaderDistributedDataStore.waitTillReady();
770 member2FollowerNode.configDataStore().waitTillReady();
771 member3FollowerNode.configDataStore().waitTillReady();
772 member4FollowerNode.configDataStore().waitTillReady();
773 member5FollowerNode.configDataStore().waitTillReady();
775 member1LeaderNode.waitForMembersUp("member-2", "member-3", "member-4", "member-5");
777 final DOMEntityOwnershipService member3EntityOwnershipService =
778 newOwnershipService(member3FollowerNode.configDataStore());
779 final DOMEntityOwnershipService member4EntityOwnershipService =
780 newOwnershipService(member4FollowerNode.configDataStore());
781 final DOMEntityOwnershipService member5EntityOwnershipService =
782 newOwnershipService(member5FollowerNode.configDataStore());
784 newOwnershipService(member1LeaderNode.configDataStore());
785 member1LeaderNode.kit().waitUntilLeader(member1LeaderNode.configDataStore().getActorContext(),
786 ENTITY_OWNERSHIP_SHARD_NAME);
788 // Make member4 and member5 non-voting
790 Future<Object> future = Patterns.ask(leaderDistributedDataStore.getActorContext().getShardManager(),
791 new ChangeShardMembersVotingStatus(ENTITY_OWNERSHIP_SHARD_NAME,
792 ImmutableMap.of("member-4", Boolean.FALSE, "member-5", Boolean.FALSE)),
793 new Timeout(10, TimeUnit.SECONDS));
794 Object response = Await.result(future, FiniteDuration.apply(10, TimeUnit.SECONDS));
795 if (response instanceof Throwable) {
796 throw new AssertionError("ChangeShardMembersVotingStatus failed", (Throwable)response);
799 assertNull("Expected null Success response. Actual " + response, response);
801 // Register member4 candidate for entity1 - it should not become owner since it's non-voting
803 member4EntityOwnershipService.registerCandidate(ENTITY1);
804 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-4");
806 // Register member5 candidate for entity2 - it should not become owner since it's non-voting
808 member5EntityOwnershipService.registerCandidate(ENTITY2);
809 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-5");
811 Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
812 verifyOwner(leaderDistributedDataStore, ENTITY1, "");
813 verifyOwner(leaderDistributedDataStore, ENTITY2, "");
815 // Register member3 candidate for entity1 - it should become owner since it's voting
817 member3EntityOwnershipService.registerCandidate(ENTITY1);
818 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-4", "member-3");
819 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-3");
821 // Switch member4 and member5 back to voting and member3 non-voting. This should result in member4 and member5
822 // to become entity owners.
824 future = Patterns.ask(leaderDistributedDataStore.getActorContext().getShardManager(),
825 new ChangeShardMembersVotingStatus(ENTITY_OWNERSHIP_SHARD_NAME,
826 ImmutableMap.of("member-3", Boolean.FALSE, "member-4", Boolean.TRUE, "member-5", Boolean.TRUE)),
827 new Timeout(10, TimeUnit.SECONDS));
828 response = Await.result(future, FiniteDuration.apply(10, TimeUnit.SECONDS));
829 if (response instanceof Throwable) {
830 throw new AssertionError("ChangeShardMembersVotingStatus failed", (Throwable)response);
833 assertNull("Expected null Success response. Actual " + response, response);
835 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-4");
836 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-5");
839 private static void verifyGetOwnershipState(final DOMEntityOwnershipService service, final DOMEntity entity,
840 final EntityOwnershipState expState) {
841 Optional<EntityOwnershipState> state = service.getOwnershipState(entity);
842 assertTrue("getOwnershipState present", state.isPresent());
843 assertEquals("EntityOwnershipState", expState, state.get());
846 private static void verifyCandidates(final AbstractDataStore dataStore, final DOMEntity entity,
847 final String... expCandidates) throws Exception {
848 AssertionError lastError = null;
849 Stopwatch sw = Stopwatch.createStarted();
850 while (sw.elapsed(TimeUnit.MILLISECONDS) <= 10000) {
851 Optional<NormalizedNode<?, ?>> possible = dataStore.newReadOnlyTransaction()
852 .read(entityPath(entity.getType(), entity.getIdentifier()).node(Candidate.QNAME))
853 .get(5, TimeUnit.SECONDS);
855 assertTrue("Candidates not found for " + entity, possible.isPresent());
856 Collection<String> actual = new ArrayList<>();
857 for (MapEntryNode candidate: ((MapNode)possible.get()).getValue()) {
858 actual.add(candidate.getChild(CANDIDATE_NAME_NODE_ID).get().getValue().toString());
861 assertEquals("Candidates for " + entity, Arrays.asList(expCandidates), actual);
863 } catch (AssertionError e) {
865 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
872 @SuppressWarnings("checkstyle:IllegalCatch")
873 private static void verifyOwner(final AbstractDataStore dataStore, final DOMEntity entity,
874 final String expOwner) {
875 AbstractEntityOwnershipTest.verifyOwner(expOwner, entity.getType(), entity.getIdentifier(), path -> {
877 return dataStore.newReadOnlyTransaction().read(path).get(5, TimeUnit.SECONDS).get();
878 } catch (Exception e) {