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.testkit.JavaTestKit;
32 import akka.util.Timeout;
33 import com.google.common.base.Optional;
34 import com.google.common.base.Stopwatch;
35 import com.google.common.collect.ImmutableMap;
36 import com.google.common.collect.Iterables;
37 import com.google.common.collect.Lists;
38 import com.google.common.util.concurrent.Uninterruptibles;
39 import java.util.ArrayList;
40 import java.util.Arrays;
41 import java.util.Collection;
42 import java.util.List;
43 import java.util.concurrent.TimeUnit;
44 import org.junit.After;
45 import org.junit.Before;
46 import org.junit.Test;
47 import org.mockito.ArgumentCaptor;
48 import org.mockito.Mock;
49 import org.mockito.Mockito;
50 import org.mockito.MockitoAnnotations;
51 import org.mockito.exceptions.base.MockitoException;
52 import org.opendaylight.controller.cluster.datastore.AbstractDataStore;
53 import org.opendaylight.controller.cluster.datastore.DatastoreContext;
54 import org.opendaylight.controller.cluster.datastore.IntegrationTestKit;
55 import org.opendaylight.controller.cluster.datastore.MemberNode;
56 import org.opendaylight.controller.cluster.datastore.entityownership.selectionstrategy.EntityOwnerSelectionStrategyConfig;
57 import org.opendaylight.controller.cluster.datastore.messages.AddShardReplica;
58 import org.opendaylight.controller.cluster.datastore.messages.ChangeShardMembersVotingStatus;
59 import org.opendaylight.controller.cluster.raft.policy.DisableElectionsRaftPolicy;
60 import org.opendaylight.controller.cluster.raft.utils.InMemoryJournal;
61 import org.opendaylight.controller.cluster.raft.utils.InMemorySnapshotStore;
62 import org.opendaylight.controller.md.cluster.datastore.model.SchemaContextHelper;
63 import org.opendaylight.mdsal.eos.common.api.EntityOwnershipState;
64 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
65 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipCandidateRegistration;
66 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipChange;
67 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipListener;
68 import org.opendaylight.mdsal.eos.dom.api.DOMEntityOwnershipService;
69 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;
70 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
71 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
72 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
73 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
74 import scala.concurrent.Await;
75 import scala.concurrent.Future;
76 import scala.concurrent.duration.FiniteDuration;
79 * End-to-end integration tests for the entity ownership functionality.
81 * @author Thomas Pantelis
83 public class DistributedEntityOwnershipIntegrationTest {
84 private static final String MODULE_SHARDS_CONFIG = "module-shards-default.conf";
85 private static final String MODULE_SHARDS_5_NODE_CONFIG = "module-shards-default-5-node.conf";
86 private static final String MODULE_SHARDS_MEMBER_1_CONFIG = "module-shards-default-member-1.conf";
87 private static final String ENTITY_TYPE1 = "entityType1";
88 private static final String ENTITY_TYPE2 = "entityType2";
89 private static final DOMEntity ENTITY1 = new DOMEntity(ENTITY_TYPE1, "entity1");
90 private static final DOMEntity ENTITY1_2 = new DOMEntity(ENTITY_TYPE2, "entity1");
91 private static final DOMEntity ENTITY2 = new DOMEntity(ENTITY_TYPE1, "entity2");
92 private static final DOMEntity ENTITY3 = new DOMEntity(ENTITY_TYPE1, "entity3");
93 private static final DOMEntity ENTITY4 = new DOMEntity(ENTITY_TYPE1, "entity4");
94 private static final SchemaContext SCHEMA_CONTEXT = SchemaContextHelper.entityOwners();
96 private final DatastoreContext.Builder leaderDatastoreContextBuilder =
97 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(5)
98 .shardIsolatedLeaderCheckIntervalInMillis(1000000);
100 private final DatastoreContext.Builder followerDatastoreContextBuilder =
101 DatastoreContext.newBuilder().shardHeartbeatIntervalInMillis(100).shardElectionTimeoutFactor(10000);
103 private final List<MemberNode> memberNodes = new ArrayList<>();
106 private DOMEntityOwnershipListener leaderMockListener;
109 private DOMEntityOwnershipListener leaderMockListener2;
112 private DOMEntityOwnershipListener follower1MockListener;
115 private DOMEntityOwnershipListener follower2MockListener;
118 public void setUp() {
119 MockitoAnnotations.initMocks(this);
120 InMemoryJournal.clear();
121 InMemorySnapshotStore.clear();
125 public void tearDown() {
126 for (MemberNode m : Lists.reverse(memberNodes)) {
132 private static DistributedEntityOwnershipService newOwnershipService(final AbstractDataStore datastore) {
133 return DistributedEntityOwnershipService.start(datastore.getActorContext(),
134 EntityOwnerSelectionStrategyConfig.newBuilder().build());
138 public void testFunctionalityWithThreeNodes() throws Exception {
139 String name = "testFunctionalityWithThreeNodes";
140 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
141 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
142 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
144 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
145 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
146 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
148 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
149 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
150 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
152 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
154 leaderDistributedDataStore.waitTillReady();
155 follower1Node.configDataStore().waitTillReady();
156 follower2Node.configDataStore().waitTillReady();
158 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
159 final DOMEntityOwnershipService follower1EntityOwnershipService =
160 newOwnershipService(follower1Node.configDataStore());
161 final DOMEntityOwnershipService follower2EntityOwnershipService =
162 newOwnershipService(follower2Node.configDataStore());
164 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
166 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
167 leaderEntityOwnershipService.registerListener(ENTITY_TYPE2, leaderMockListener2);
168 follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener);
170 // Register leader candidate for entity1 and verify it becomes owner
172 leaderEntityOwnershipService.registerCandidate(ENTITY1);
173 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true));
174 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
175 reset(leaderMockListener, follower1MockListener);
177 verifyGetOwnershipState(leaderEntityOwnershipService, ENTITY1, EntityOwnershipState.IS_OWNER);
178 verifyGetOwnershipState(follower1EntityOwnershipService, ENTITY1, EntityOwnershipState.OWNED_BY_OTHER);
180 // Register leader candidate for entity1_2 (same id, different type) and verify it becomes owner
182 leaderEntityOwnershipService.registerCandidate(ENTITY1_2);
183 verify(leaderMockListener2, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1_2, false, true, true));
184 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
185 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1_2));
186 reset(leaderMockListener2);
188 // Register follower1 candidate for entity1 and verify it gets added but doesn't become owner
190 follower1EntityOwnershipService.registerCandidate(ENTITY1);
191 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1", "member-2");
192 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
193 verifyOwner(follower2Node.configDataStore(), ENTITY1, "member-1");
194 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
195 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
196 verify(follower1MockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
198 // Register follower1 candidate for entity2 and verify it becomes owner
200 final DOMEntityOwnershipCandidateRegistration follower1Entity2Reg =
201 follower1EntityOwnershipService.registerCandidate(ENTITY2);
202 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
203 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true));
204 verifyOwner(follower2Node.configDataStore(), ENTITY2, "member-2");
205 reset(leaderMockListener, follower1MockListener);
207 // Register follower2 candidate for entity2 and verify it gets added but doesn't become owner
209 follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener);
210 verify(follower2MockListener, timeout(5000).times(2)).ownershipChanged(or(
211 ownershipChange(ENTITY1, false, false, true), ownershipChange(ENTITY2, false, false, true)));
213 follower2EntityOwnershipService.registerCandidate(ENTITY2);
214 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-2", "member-3");
215 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-2");
217 // Unregister follower1 candidate for entity2 and verify follower2 becomes owner
219 follower1Entity2Reg.close();
220 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-3");
221 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-3");
222 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, true));
223 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, true));
225 // Depending on timing, follower2MockListener could get ownershipChanged with "false, false, true" if
226 // if the original ownership change with "member-2 is replicated to follower2 after the listener is
228 Uninterruptibles.sleepUninterruptibly(500, TimeUnit.MILLISECONDS);
229 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
231 // Register follower1 candidate for entity3 and verify it becomes owner
233 follower1EntityOwnershipService.registerCandidate(ENTITY3);
234 verifyOwner(leaderDistributedDataStore, ENTITY3, "member-2");
235 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, true, true));
236 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true));
237 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY3, false, false, true));
239 // Register follower2 candidate for entity4 and verify it becomes owner
241 follower2EntityOwnershipService.registerCandidate(ENTITY4);
242 verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3");
243 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, true, true));
244 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
245 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
246 reset(follower1MockListener, follower2MockListener);
248 // Register follower1 candidate for entity4 and verify it gets added but doesn't become owner
250 follower1EntityOwnershipService.registerCandidate(ENTITY4);
251 verifyCandidates(leaderDistributedDataStore, ENTITY4, "member-3", "member-2");
252 verifyOwner(leaderDistributedDataStore, ENTITY4, "member-3");
254 // Shutdown follower2 and verify it's owned entities (entity 4) get re-assigned
256 reset(leaderMockListener, follower1MockListener);
257 follower2Node.cleanup();
259 verify(follower1MockListener, timeout(15000)).ownershipChanged(ownershipChange(ENTITY4, false, true, true));
260 verify(leaderMockListener, timeout(15000)).ownershipChanged(ownershipChange(ENTITY4, false, false, true));
262 // Register leader candidate for entity2 and verify it becomes owner
264 DOMEntityOwnershipCandidateRegistration leaderEntity2Reg =
265 leaderEntityOwnershipService.registerCandidate(ENTITY2);
266 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
267 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, true, true));
269 // Unregister leader candidate for entity2 and verify the owner is cleared
271 leaderEntity2Reg.close();
272 verifyOwner(leaderDistributedDataStore, ENTITY2, "");
273 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, true, false, false));
274 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY2, false, false, false));
278 public void testLeaderEntityOwnersReassignedAfterShutdown() throws Exception {
279 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
280 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
282 String name = "testLeaderEntityOwnersReassignedAfterShutdown";
283 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
284 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
285 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
287 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
288 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
289 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
291 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
292 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
293 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
295 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
297 leaderDistributedDataStore.waitTillReady();
298 follower1Node.configDataStore().waitTillReady();
299 follower2Node.configDataStore().waitTillReady();
301 follower1Node.waitForMembersUp("member-1", "member-3");
303 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
304 final DOMEntityOwnershipService follower1EntityOwnershipService =
305 newOwnershipService(follower1Node.configDataStore());
306 final DOMEntityOwnershipService follower2EntityOwnershipService =
307 newOwnershipService(follower2Node.configDataStore());
309 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
311 // Register follower1 candidate for entity1 and verify it becomes owner
313 follower1EntityOwnershipService.registerCandidate(ENTITY1);
314 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
316 // Register leader candidate for entity1
318 leaderEntityOwnershipService.registerCandidate(ENTITY1);
319 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
320 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
322 // Register leader candidate for entity2 and verify it becomes owner
324 leaderEntityOwnershipService.registerCandidate(ENTITY2);
325 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
327 // Register follower2 candidate for entity2
329 follower2EntityOwnershipService.registerCandidate(ENTITY2);
330 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
331 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
333 // Re-enable elections on all remaining followers so one becomes the new leader
335 ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
336 ENTITY_OWNERSHIP_SHARD_NAME);
337 follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
338 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
340 ActorRef follower2Shard = IntegrationTestKit.findLocalShard(follower2Node.configDataStore().getActorContext(),
341 ENTITY_OWNERSHIP_SHARD_NAME);
342 follower2Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
343 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
345 // Shutdown the leader and verify its removed from the candidate list
347 leaderNode.cleanup();
348 follower1Node.waitForMemberDown("member-1");
349 follower2Node.waitForMemberDown("member-1");
351 // Verify the prior leader's entity owners are re-assigned.
353 verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
354 verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3");
355 verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
356 verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
360 public void testLeaderAndFollowerEntityOwnersReassignedAfterShutdown() throws Exception {
361 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
362 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
364 String name = "testLeaderAndFollowerEntityOwnersReassignedAfterShutdown";
365 final MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1")
366 .useAkkaArtery(false).testName(name)
367 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
368 .createOperDatastore(false).datastoreContextBuilder(leaderDatastoreContextBuilder).build();
370 final MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2")
371 .useAkkaArtery(false).testName(name)
372 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
373 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
375 final MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3")
376 .useAkkaArtery(false).testName(name)
377 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
378 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
380 final MemberNode follower3Node = MemberNode.builder(memberNodes).akkaConfig("Member4")
381 .useAkkaArtery(false).testName(name)
382 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
383 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
385 final MemberNode follower4Node = MemberNode.builder(memberNodes).akkaConfig("Member5")
386 .useAkkaArtery(false).testName(name)
387 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
388 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
390 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
392 leaderDistributedDataStore.waitTillReady();
393 follower1Node.configDataStore().waitTillReady();
394 follower2Node.configDataStore().waitTillReady();
395 follower3Node.configDataStore().waitTillReady();
396 follower4Node.configDataStore().waitTillReady();
398 leaderNode.waitForMembersUp("member-2", "member-3", "member-4", "member-5");
399 follower1Node.waitForMembersUp("member-1", "member-3", "member-4", "member-5");
401 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
402 final DOMEntityOwnershipService follower1EntityOwnershipService =
403 newOwnershipService(follower1Node.configDataStore());
404 final DOMEntityOwnershipService follower2EntityOwnershipService =
405 newOwnershipService(follower2Node.configDataStore());
406 final DOMEntityOwnershipService follower3EntityOwnershipService =
407 newOwnershipService(follower3Node.configDataStore());
408 newOwnershipService(follower4Node.configDataStore());
410 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
412 // Register follower1 candidate for entity1 and verify it becomes owner
414 follower1EntityOwnershipService.registerCandidate(ENTITY1);
415 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
417 // Register leader candidate for entity1
419 leaderEntityOwnershipService.registerCandidate(ENTITY1);
420 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2", "member-1");
421 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
423 // Register leader candidate for entity2 and verify it becomes owner
425 leaderEntityOwnershipService.registerCandidate(ENTITY2);
426 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
428 // Register follower2 candidate for entity2
430 follower2EntityOwnershipService.registerCandidate(ENTITY2);
431 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3");
432 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
434 // Register follower3 as a candidate for entity2 as well
436 follower3EntityOwnershipService.registerCandidate(ENTITY2);
437 verifyCandidates(leaderDistributedDataStore, ENTITY2, "member-1", "member-3", "member-4");
438 verifyOwner(leaderDistributedDataStore, ENTITY2, "member-1");
440 // Re-enable elections on all remaining followers so one becomes the new leader
442 ActorRef follower1Shard = IntegrationTestKit.findLocalShard(follower1Node.configDataStore().getActorContext(),
443 ENTITY_OWNERSHIP_SHARD_NAME);
444 follower1Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
445 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
447 ActorRef follower2Shard = IntegrationTestKit.findLocalShard(follower2Node.configDataStore().getActorContext(),
448 ENTITY_OWNERSHIP_SHARD_NAME);
449 follower2Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
450 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
452 ActorRef follower4Shard = IntegrationTestKit.findLocalShard(follower4Node.configDataStore().getActorContext(),
453 ENTITY_OWNERSHIP_SHARD_NAME);
454 follower4Shard.tell(DatastoreContext.newBuilderFrom(followerDatastoreContextBuilder.build())
455 .customRaftPolicyImplementation(null).build(), ActorRef.noSender());
457 // Shutdown the leader and follower3
459 leaderNode.cleanup();
460 follower3Node.cleanup();
462 follower1Node.waitForMemberDown("member-1");
463 follower1Node.waitForMemberDown("member-4");
464 follower2Node.waitForMemberDown("member-1");
465 follower2Node.waitForMemberDown("member-4");
466 follower4Node.waitForMemberDown("member-1");
467 follower4Node.waitForMemberDown("member-4");
469 // Verify the prior leader's and follower3 entity owners are re-assigned.
471 verifyCandidates(follower1Node.configDataStore(), ENTITY1, "member-2", "member-1");
472 verifyCandidates(follower1Node.configDataStore(), ENTITY2, "member-1", "member-3", "member-4");
473 verifyOwner(follower1Node.configDataStore(), ENTITY1, "member-2");
474 verifyOwner(follower1Node.configDataStore(), ENTITY2, "member-3");
478 * Reproduces bug <a href="https://bugs.opendaylight.org/show_bug.cgi?id=4554">4554</a>.
481 public void testCloseCandidateRegistrationInQuickSuccession() throws Exception {
482 String name = "testCloseCandidateRegistrationInQuickSuccession";
483 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
484 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
485 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
487 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
488 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
489 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
491 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
492 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
493 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
495 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
497 leaderDistributedDataStore.waitTillReady();
498 follower1Node.configDataStore().waitTillReady();
499 follower2Node.configDataStore().waitTillReady();
501 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
502 final DOMEntityOwnershipService follower1EntityOwnershipService =
503 newOwnershipService(follower1Node.configDataStore());
504 final DOMEntityOwnershipService follower2EntityOwnershipService =
505 newOwnershipService(follower2Node.configDataStore());
507 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
509 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
510 follower1EntityOwnershipService.registerListener(ENTITY_TYPE1, follower1MockListener);
511 follower2EntityOwnershipService.registerListener(ENTITY_TYPE1, follower2MockListener);
513 final DOMEntityOwnershipCandidateRegistration candidate1 =
514 leaderEntityOwnershipService.registerCandidate(ENTITY1);
515 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, true, true));
517 final DOMEntityOwnershipCandidateRegistration candidate2 =
518 follower1EntityOwnershipService.registerCandidate(ENTITY1);
519 verify(follower1MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
521 final DOMEntityOwnershipCandidateRegistration candidate3 =
522 follower2EntityOwnershipService.registerCandidate(ENTITY1);
523 verify(follower2MockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
525 Mockito.reset(leaderMockListener, follower1MockListener, follower2MockListener);
527 ArgumentCaptor<DOMEntityOwnershipChange> leaderChangeCaptor =
528 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
529 ArgumentCaptor<DOMEntityOwnershipChange> follower1ChangeCaptor =
530 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
531 ArgumentCaptor<DOMEntityOwnershipChange> follower2ChangeCaptor =
532 ArgumentCaptor.forClass(DOMEntityOwnershipChange.class);
533 doNothing().when(leaderMockListener).ownershipChanged(leaderChangeCaptor.capture());
534 doNothing().when(follower1MockListener).ownershipChanged(follower1ChangeCaptor.capture());
535 doNothing().when(follower2MockListener).ownershipChanged(follower2ChangeCaptor.capture());
541 boolean passed = false;
542 for (int i = 0; i < 100; i++) {
543 Uninterruptibles.sleepUninterruptibly(50, TimeUnit.MILLISECONDS);
544 final Optional<EntityOwnershipState> leaderState = leaderEntityOwnershipService.getOwnershipState(ENTITY1);
545 final Optional<EntityOwnershipState> follower1State =
546 follower1EntityOwnershipService.getOwnershipState(ENTITY1);
547 final Optional<EntityOwnershipState> follower2State =
548 follower2EntityOwnershipService.getOwnershipState(ENTITY1);
549 final Optional<DOMEntityOwnershipChange> leaderChange = getValueSafely(leaderChangeCaptor);
550 final Optional<DOMEntityOwnershipChange> follower1Change = getValueSafely(follower1ChangeCaptor);
551 final Optional<DOMEntityOwnershipChange> follower2Change = getValueSafely(follower2ChangeCaptor);
552 if (!leaderState.isPresent() || leaderState.get() == EntityOwnershipState.NO_OWNER
553 && follower1State.isPresent() && follower1State.get() == EntityOwnershipState.NO_OWNER
554 && follower2State.isPresent() && follower2State.get() == EntityOwnershipState.NO_OWNER
555 && leaderChange.isPresent() && !leaderChange.get().getState().hasOwner()
556 && follower1Change.isPresent() && !follower1Change.get().getState().hasOwner()
557 && follower2Change.isPresent() && !follower2Change.get().getState().hasOwner()) {
563 assertTrue("No ownership change message was sent with hasOwner=false", passed);
566 private static Optional<DOMEntityOwnershipChange> getValueSafely(ArgumentCaptor<DOMEntityOwnershipChange> captor) {
568 return Optional.fromNullable(captor.getValue());
569 } catch (MockitoException e) {
570 // No value was captured
571 return Optional.absent();
576 * Tests bootstrapping the entity-ownership shard when there's no shards initially configured for local
577 * member. The entity-ownership shard is initially created as inactive (ie remains a follower), requiring
578 * an AddShardReplica request to join it to an existing leader.
581 public void testEntityOwnershipShardBootstrapping() throws Exception {
582 String name = "testEntityOwnershipShardBootstrapping";
583 String moduleShardsConfig = MODULE_SHARDS_MEMBER_1_CONFIG;
584 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
585 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
586 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
588 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
589 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
591 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
593 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
594 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
595 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
597 AbstractDataStore follower1DistributedDataStore = follower1Node.configDataStore();
598 follower1DistributedDataStore.waitTillReady();
600 leaderNode.waitForMembersUp("member-2");
601 follower1Node.waitForMembersUp("member-1");
603 DOMEntityOwnershipService follower1EntityOwnershipService = newOwnershipService(follower1DistributedDataStore);
605 leaderEntityOwnershipService.registerListener(ENTITY_TYPE1, leaderMockListener);
607 // Register a candidate for follower1 - should get queued since follower1 has no leader
608 final DOMEntityOwnershipCandidateRegistration candidateReg =
609 follower1EntityOwnershipService.registerCandidate(ENTITY1);
610 Uninterruptibles.sleepUninterruptibly(300, TimeUnit.MILLISECONDS);
611 verify(leaderMockListener, never()).ownershipChanged(ownershipChange(ENTITY1));
613 // Add replica in follower1
614 AddShardReplica addReplica = new AddShardReplica(ENTITY_OWNERSHIP_SHARD_NAME);
615 follower1DistributedDataStore.getActorContext().getShardManager().tell(addReplica,
616 follower1Node.kit().getRef());
617 Object reply = follower1Node.kit().expectMsgAnyClassOf(JavaTestKit.duration("5 sec"),
618 Success.class, Failure.class);
619 if (reply instanceof Failure) {
620 throw new AssertionError("AddShardReplica failed", ((Failure)reply).cause());
623 // The queued candidate registration should proceed
624 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
625 reset(leaderMockListener);
627 candidateReg.close();
628 verify(leaderMockListener, timeout(5000)).ownershipChanged(ownershipChange(ENTITY1, false, false, false));
629 reset(leaderMockListener);
631 // Restart follower1 and verify the entity ownership shard is re-instated by registering.
632 Cluster.get(leaderNode.kit().getSystem()).down(Cluster.get(follower1Node.kit().getSystem()).selfAddress());
633 follower1Node.cleanup();
635 follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
636 .moduleShardsConfig(moduleShardsConfig).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
637 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
638 follower1EntityOwnershipService = newOwnershipService(follower1Node.configDataStore());
640 follower1EntityOwnershipService.registerCandidate(ENTITY1);
641 verify(leaderMockListener, timeout(20000)).ownershipChanged(ownershipChange(ENTITY1, false, false, true));
643 verifyRaftState(follower1Node.configDataStore(), ENTITY_OWNERSHIP_SHARD_NAME, raftState -> {
644 assertNull("Custom RaftPolicy class name", raftState.getCustomRaftPolicyClassName());
645 assertEquals("Peer count", 1, raftState.getPeerAddresses().keySet().size());
646 assertThat("Peer Id", Iterables.<String>getLast(raftState.getPeerAddresses().keySet()),
647 org.hamcrest.CoreMatchers.containsString("member-1"));
652 public void testOwnerSelectedOnRapidUnregisteringAndRegisteringOfCandidates() throws Exception {
653 String name = "testOwnerSelectedOnRapidUnregisteringAndRegisteringOfCandidates";
654 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
655 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
656 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
658 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
659 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
660 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
662 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
663 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
664 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
666 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
668 leaderDistributedDataStore.waitTillReady();
669 follower1Node.configDataStore().waitTillReady();
670 follower2Node.configDataStore().waitTillReady();
672 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
673 final DOMEntityOwnershipService follower1EntityOwnershipService =
674 newOwnershipService(follower1Node.configDataStore());
675 newOwnershipService(follower2Node.configDataStore());
677 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
679 // Register leader candidate for entity1 and verify it becomes owner
681 DOMEntityOwnershipCandidateRegistration leaderEntity1Reg =
682 leaderEntityOwnershipService.registerCandidate(ENTITY1);
684 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1");
685 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
687 leaderEntity1Reg.close();
688 follower1EntityOwnershipService.registerCandidate(ENTITY1);
690 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2");
691 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
695 public void testOwnerSelectedOnRapidRegisteringAndUnregisteringOfCandidates() throws Exception {
696 String name = "testOwnerSelectedOnRapidRegisteringAndUnregisteringOfCandidates";
697 MemberNode leaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1").testName(name)
698 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
699 .datastoreContextBuilder(leaderDatastoreContextBuilder).build();
701 MemberNode follower1Node = MemberNode.builder(memberNodes).akkaConfig("Member2").testName(name)
702 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
703 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
705 MemberNode follower2Node = MemberNode.builder(memberNodes).akkaConfig("Member3").testName(name)
706 .moduleShardsConfig(MODULE_SHARDS_CONFIG).schemaContext(SCHEMA_CONTEXT).createOperDatastore(false)
707 .datastoreContextBuilder(followerDatastoreContextBuilder).build();
709 AbstractDataStore leaderDistributedDataStore = leaderNode.configDataStore();
711 leaderDistributedDataStore.waitTillReady();
712 follower1Node.configDataStore().waitTillReady();
713 follower2Node.configDataStore().waitTillReady();
715 final DOMEntityOwnershipService leaderEntityOwnershipService = newOwnershipService(leaderDistributedDataStore);
716 final DOMEntityOwnershipService follower1EntityOwnershipService =
717 newOwnershipService(follower1Node.configDataStore());
718 newOwnershipService(follower2Node.configDataStore());
720 leaderNode.kit().waitUntilLeader(leaderNode.configDataStore().getActorContext(), ENTITY_OWNERSHIP_SHARD_NAME);
722 // Register leader candidate for entity1 and verify it becomes owner
724 final DOMEntityOwnershipCandidateRegistration leaderEntity1Reg =
725 leaderEntityOwnershipService.registerCandidate(ENTITY1);
727 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-1");
728 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-1");
730 follower1EntityOwnershipService.registerCandidate(ENTITY1);
731 leaderEntity1Reg.close();
733 verifyCandidates(leaderDistributedDataStore, ENTITY1, "member-2");
734 verifyOwner(leaderDistributedDataStore, ENTITY1, "member-2");
738 public void testEntityOwnershipWithNonVotingMembers() throws Exception {
739 followerDatastoreContextBuilder.shardElectionTimeoutFactor(5)
740 .customRaftPolicyImplementation(DisableElectionsRaftPolicy.class.getName());
742 String name = "testEntityOwnershipWithNonVotingMembers";
743 final MemberNode member1LeaderNode = MemberNode.builder(memberNodes).akkaConfig("Member1")
744 .useAkkaArtery(false).testName(name)
745 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
746 .createOperDatastore(false).datastoreContextBuilder(leaderDatastoreContextBuilder).build();
748 final MemberNode member2FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member2")
749 .useAkkaArtery(false).testName(name)
750 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
751 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
753 final MemberNode member3FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member3")
754 .useAkkaArtery(false).testName(name)
755 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
756 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
758 final MemberNode member4FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member4")
759 .useAkkaArtery(false).testName(name)
760 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
761 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
763 final MemberNode member5FollowerNode = MemberNode.builder(memberNodes).akkaConfig("Member5")
764 .useAkkaArtery(false).testName(name)
765 .moduleShardsConfig(MODULE_SHARDS_5_NODE_CONFIG).schemaContext(SCHEMA_CONTEXT)
766 .createOperDatastore(false).datastoreContextBuilder(followerDatastoreContextBuilder).build();
768 AbstractDataStore leaderDistributedDataStore = member1LeaderNode.configDataStore();
770 leaderDistributedDataStore.waitTillReady();
771 member2FollowerNode.configDataStore().waitTillReady();
772 member3FollowerNode.configDataStore().waitTillReady();
773 member4FollowerNode.configDataStore().waitTillReady();
774 member5FollowerNode.configDataStore().waitTillReady();
776 member1LeaderNode.waitForMembersUp("member-2", "member-3", "member-4", "member-5");
778 final DOMEntityOwnershipService member3EntityOwnershipService =
779 newOwnershipService(member3FollowerNode.configDataStore());
780 final DOMEntityOwnershipService member4EntityOwnershipService =
781 newOwnershipService(member4FollowerNode.configDataStore());
782 final DOMEntityOwnershipService member5EntityOwnershipService =
783 newOwnershipService(member5FollowerNode.configDataStore());
785 newOwnershipService(member1LeaderNode.configDataStore());
786 member1LeaderNode.kit().waitUntilLeader(member1LeaderNode.configDataStore().getActorContext(),
787 ENTITY_OWNERSHIP_SHARD_NAME);
789 // Make member4 and member5 non-voting
791 Future<Object> future = Patterns.ask(leaderDistributedDataStore.getActorContext().getShardManager(),
792 new ChangeShardMembersVotingStatus(ENTITY_OWNERSHIP_SHARD_NAME,
793 ImmutableMap.of("member-4", false, "member-5", false)), 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", false, "member-4", true, "member-5", 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 assertEquals("getOwnershipState present", true, 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 assertEquals("Candidates not found for " + entity, true, 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) {