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Add retention leases replication tests (elastic#38857)
This commit introduces the retention leases to ESIndexLevelReplicationTestCase, then adds some tests verifying that the retention leases replication works correctly in spite of the presence of the primary failover or out of order delivery of retention leases sync requests. Relates elastic#37165
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...er/src/test/java/org/elasticsearch/index/replication/RetentionLeasesReplicationTests.java
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| /* | ||
| * Licensed to Elasticsearch under one or more contributor | ||
| * license agreements. See the NOTICE file distributed with | ||
| * this work for additional information regarding copyright | ||
| * ownership. Elasticsearch licenses this file to you under | ||
| * the Apache License, Version 2.0 (the "License"); you may | ||
| * not use this file except in compliance with the License. | ||
| * You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, | ||
| * software distributed under the License is distributed on an | ||
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY | ||
| * KIND, either express or implied. See the License for the | ||
| * specific language governing permissions and limitations | ||
| * under the License. | ||
| */ | ||
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| package org.elasticsearch.index.replication; | ||
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| import org.elasticsearch.action.ActionListener; | ||
| import org.elasticsearch.action.support.PlainActionFuture; | ||
| import org.elasticsearch.action.support.replication.ReplicationResponse; | ||
| import org.elasticsearch.cluster.metadata.IndexMetaData; | ||
| import org.elasticsearch.common.Randomness; | ||
| import org.elasticsearch.common.settings.Settings; | ||
| import org.elasticsearch.index.IndexSettings; | ||
| import org.elasticsearch.index.seqno.RetentionLease; | ||
| import org.elasticsearch.index.seqno.RetentionLeaseSyncAction; | ||
| import org.elasticsearch.index.seqno.RetentionLeases; | ||
| import org.elasticsearch.index.shard.IndexShard; | ||
| import org.elasticsearch.index.shard.ShardId; | ||
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| import java.util.ArrayList; | ||
| import java.util.List; | ||
| import java.util.concurrent.CountDownLatch; | ||
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| import static org.hamcrest.Matchers.containsInAnyOrder; | ||
| import static org.hamcrest.Matchers.equalTo; | ||
| import static org.hamcrest.Matchers.hasSize; | ||
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| public class RetentionLeasesReplicationTests extends ESIndexLevelReplicationTestCase { | ||
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| public void testSimpleSyncRetentionLeases() throws Exception { | ||
| Settings settings = Settings.builder().put(IndexSettings.INDEX_SOFT_DELETES_SETTING.getKey(), true).build(); | ||
| try (ReplicationGroup group = createGroup(between(0, 2), settings)) { | ||
| group.startAll(); | ||
| List<RetentionLease> leases = new ArrayList<>(); | ||
| int iterations = between(1, 100); | ||
| CountDownLatch latch = new CountDownLatch(iterations); | ||
| for (int i = 0; i < iterations; i++) { | ||
| if (leases.isEmpty() == false && rarely()) { | ||
| RetentionLease leaseToRemove = randomFrom(leases); | ||
| leases.remove(leaseToRemove); | ||
| group.removeRetentionLease(leaseToRemove.id(), ActionListener.wrap(latch::countDown)); | ||
| } else { | ||
| RetentionLease newLease = group.addRetentionLease(Integer.toString(i), randomNonNegativeLong(), "test-" + i, | ||
| ActionListener.wrap(latch::countDown)); | ||
| leases.add(newLease); | ||
| } | ||
| } | ||
| RetentionLeases leasesOnPrimary = group.getPrimary().getRetentionLeases(); | ||
| assertThat(leasesOnPrimary.version(), equalTo((long) iterations)); | ||
| assertThat(leasesOnPrimary.primaryTerm(), equalTo(group.getPrimary().getOperationPrimaryTerm())); | ||
| assertThat(leasesOnPrimary.leases(), containsInAnyOrder(leases.toArray(new RetentionLease[0]))); | ||
| latch.await(); | ||
| for (IndexShard replica : group.getReplicas()) { | ||
| assertThat(replica.getRetentionLeases(), equalTo(leasesOnPrimary)); | ||
| } | ||
| } | ||
| } | ||
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| public void testOutOfOrderRetentionLeasesRequests() throws Exception { | ||
| Settings settings = Settings.builder().put(IndexSettings.INDEX_SOFT_DELETES_SETTING.getKey(), true).build(); | ||
| int numberOfReplicas = between(1, 2); | ||
| IndexMetaData indexMetaData = buildIndexMetaData(numberOfReplicas, settings, indexMapping); | ||
| try (ReplicationGroup group = new ReplicationGroup(indexMetaData) { | ||
| @Override | ||
| protected void syncRetentionLeases(ShardId shardId, RetentionLeases leases, ActionListener<ReplicationResponse> listener) { | ||
| listener.onResponse(new SyncRetentionLeasesResponse(new RetentionLeaseSyncAction.Request(shardId, leases))); | ||
| } | ||
| }) { | ||
| group.startAll(); | ||
| int numLeases = between(1, 10); | ||
| List<RetentionLeaseSyncAction.Request> requests = new ArrayList<>(); | ||
| for (int i = 0; i < numLeases; i++) { | ||
| PlainActionFuture<ReplicationResponse> future = new PlainActionFuture<>(); | ||
| group.addRetentionLease(Integer.toString(i), randomNonNegativeLong(), "test-" + i, future); | ||
| requests.add(((SyncRetentionLeasesResponse) future.actionGet()).syncRequest); | ||
| } | ||
| RetentionLeases leasesOnPrimary = group.getPrimary().getRetentionLeases(); | ||
| for (IndexShard replica : group.getReplicas()) { | ||
| Randomness.shuffle(requests); | ||
| requests.forEach(request -> group.executeRetentionLeasesSyncRequestOnReplica(request, replica)); | ||
| assertThat(replica.getRetentionLeases(), equalTo(leasesOnPrimary)); | ||
| } | ||
| } | ||
| } | ||
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| public void testSyncRetentionLeasesWithPrimaryPromotion() throws Exception { | ||
| Settings settings = Settings.builder().put(IndexSettings.INDEX_SOFT_DELETES_SETTING.getKey(), true).build(); | ||
| int numberOfReplicas = between(2, 4); | ||
| IndexMetaData indexMetaData = buildIndexMetaData(numberOfReplicas, settings, indexMapping); | ||
| try (ReplicationGroup group = new ReplicationGroup(indexMetaData) { | ||
| @Override | ||
| protected void syncRetentionLeases(ShardId shardId, RetentionLeases leases, ActionListener<ReplicationResponse> listener) { | ||
| listener.onResponse(new SyncRetentionLeasesResponse(new RetentionLeaseSyncAction.Request(shardId, leases))); | ||
| } | ||
| }) { | ||
| group.startAll(); | ||
| int numLeases = between(1, 100); | ||
| IndexShard newPrimary = randomFrom(group.getReplicas()); | ||
| RetentionLeases latestRetentionLeasesOnNewPrimary = RetentionLeases.EMPTY; | ||
| for (int i = 0; i < numLeases; i++) { | ||
| PlainActionFuture<ReplicationResponse> addLeaseFuture = new PlainActionFuture<>(); | ||
| group.addRetentionLease(Integer.toString(i), randomNonNegativeLong(), "test-" + i, addLeaseFuture); | ||
| RetentionLeaseSyncAction.Request request = ((SyncRetentionLeasesResponse) addLeaseFuture.actionGet()).syncRequest; | ||
| for (IndexShard replica : randomSubsetOf(group.getReplicas())) { | ||
| group.executeRetentionLeasesSyncRequestOnReplica(request, replica); | ||
| if (newPrimary == replica) { | ||
| latestRetentionLeasesOnNewPrimary = request.getRetentionLeases(); | ||
| } | ||
| } | ||
| } | ||
| group.promoteReplicaToPrimary(newPrimary).get(); | ||
| // we need to make changes to retention leases to sync it to replicas | ||
| // since we don't sync retention leases when promoting a new primary. | ||
| PlainActionFuture<ReplicationResponse> newLeaseFuture = new PlainActionFuture<>(); | ||
| group.addRetentionLease("new-lease-after-promotion", randomNonNegativeLong(), "test", newLeaseFuture); | ||
| RetentionLeases leasesOnPrimary = group.getPrimary().getRetentionLeases(); | ||
| assertThat(leasesOnPrimary.primaryTerm(), equalTo(group.getPrimary().getOperationPrimaryTerm())); | ||
| assertThat(leasesOnPrimary.version(), equalTo(latestRetentionLeasesOnNewPrimary.version() + 1L)); | ||
| assertThat(leasesOnPrimary.leases(), hasSize(latestRetentionLeasesOnNewPrimary.leases().size() + 1)); | ||
| RetentionLeaseSyncAction.Request request = ((SyncRetentionLeasesResponse) newLeaseFuture.actionGet()).syncRequest; | ||
| for (IndexShard replica : group.getReplicas()) { | ||
| group.executeRetentionLeasesSyncRequestOnReplica(request, replica); | ||
| } | ||
| for (IndexShard replica : group.getReplicas()) { | ||
| assertThat(replica.getRetentionLeases(), equalTo(leasesOnPrimary)); | ||
| } | ||
| } | ||
| } | ||
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| static final class SyncRetentionLeasesResponse extends ReplicationResponse { | ||
| final RetentionLeaseSyncAction.Request syncRequest; | ||
| SyncRetentionLeasesResponse(RetentionLeaseSyncAction.Request syncRequest) { | ||
| this.syncRequest = syncRequest; | ||
| } | ||
| } | ||
| } |
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