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| 1 | +/* |
| 2 | + * SPDX-License-Identifier: Apache-2.0 |
| 3 | + * |
| 4 | + * The OpenSearch Contributors require contributions made to |
| 5 | + * this file be licensed under the Apache-2.0 license or a |
| 6 | + * compatible open source license. |
| 7 | + */ |
| 8 | + |
| 9 | +package org.opensearch.cluster.state; |
| 10 | + |
| 11 | +import org.opensearch.action.admin.cluster.state.ClusterStateRequest; |
| 12 | +import org.opensearch.action.admin.cluster.state.ClusterStateResponse; |
| 13 | +import org.opensearch.action.admin.cluster.state.term.GetTermVersionAction; |
| 14 | +import org.opensearch.action.admin.cluster.state.term.GetTermVersionResponse; |
| 15 | +import org.opensearch.action.admin.indices.mapping.put.PutMappingRequest; |
| 16 | +import org.opensearch.cluster.ClusterName; |
| 17 | +import org.opensearch.cluster.coordination.ClusterStateTermVersion; |
| 18 | +import org.opensearch.cluster.metadata.IndexMetadata; |
| 19 | +import org.opensearch.common.settings.Settings; |
| 20 | +import org.opensearch.index.mapper.MapperService; |
| 21 | +import org.opensearch.plugins.Plugin; |
| 22 | +import org.opensearch.test.OpenSearchIntegTestCase; |
| 23 | +import org.opensearch.test.transport.MockTransportService; |
| 24 | +import org.opensearch.transport.TransportService; |
| 25 | + |
| 26 | +import java.util.ArrayList; |
| 27 | +import java.util.Collection; |
| 28 | +import java.util.Collections; |
| 29 | +import java.util.List; |
| 30 | +import java.util.Map; |
| 31 | +import java.util.concurrent.atomic.AtomicBoolean; |
| 32 | +import java.util.stream.IntStream; |
| 33 | + |
| 34 | +import static org.hamcrest.Matchers.is; |
| 35 | + |
| 36 | +@SuppressWarnings("unchecked") |
| 37 | +@OpenSearchIntegTestCase.ClusterScope(scope = OpenSearchIntegTestCase.Scope.TEST, numDataNodes = 0) |
| 38 | +public class FetchByTermVersionIT extends OpenSearchIntegTestCase { |
| 39 | + |
| 40 | + AtomicBoolean isTermVersionCheckEnabled = new AtomicBoolean(); |
| 41 | + |
| 42 | + protected Collection<Class<? extends Plugin>> nodePlugins() { |
| 43 | + return List.of(MockTransportService.TestPlugin.class); |
| 44 | + } |
| 45 | + |
| 46 | + AtomicBoolean forceFetchFromCM = new AtomicBoolean(); |
| 47 | + |
| 48 | + public void testClusterStateResponseFromDataNode() throws Exception { |
| 49 | + String cm = internalCluster().startClusterManagerOnlyNode(); |
| 50 | + List<String> dns = internalCluster().startDataOnlyNodes(5); |
| 51 | + int numberOfShards = dns.size(); |
| 52 | + stubClusterTermResponse(cm); |
| 53 | + |
| 54 | + ensureClusterSizeConsistency(); |
| 55 | + ensureGreen(); |
| 56 | + |
| 57 | + List<String> indices = new ArrayList<>(); |
| 58 | + |
| 59 | + // Create a large sized cluster-state by creating field mappings |
| 60 | + IntStream.range(0, 20).forEachOrdered(n -> { |
| 61 | + String index = "index_" + n; |
| 62 | + createIndex( |
| 63 | + index, |
| 64 | + Settings.builder() |
| 65 | + .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, numberOfShards) |
| 66 | + .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, 0) |
| 67 | + .put(MapperService.INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING.getKey(), Long.MAX_VALUE) |
| 68 | + .build() |
| 69 | + ); |
| 70 | + indices.add(index); |
| 71 | + }); |
| 72 | + IntStream.range(0, 5).forEachOrdered(n -> { |
| 73 | + List<String> mappings = new ArrayList<>(); |
| 74 | + for (int i = 0; i < 2000; i++) { |
| 75 | + mappings.add("t-123456789-123456789-" + n + "-" + i); |
| 76 | + mappings.add("type=keyword"); |
| 77 | + } |
| 78 | + PutMappingRequest request = new PutMappingRequest().source(mappings.toArray(new String[0])) |
| 79 | + .indices(indices.toArray(new String[0])); |
| 80 | + internalCluster().dataNodeClient().admin().indices().putMapping(request).actionGet(); |
| 81 | + }); |
| 82 | + ensureGreen(); |
| 83 | + |
| 84 | + ClusterStateResponse stateResponseM = internalCluster().clusterManagerClient() |
| 85 | + .admin() |
| 86 | + .cluster() |
| 87 | + .state(new ClusterStateRequest()) |
| 88 | + .actionGet(); |
| 89 | + |
| 90 | + waitUntil(() -> { |
| 91 | + ClusterStateResponse stateResponseD = internalCluster().dataNodeClient() |
| 92 | + .admin() |
| 93 | + .cluster() |
| 94 | + .state(new ClusterStateRequest()) |
| 95 | + .actionGet(); |
| 96 | + return stateResponseD.getState().stateUUID().equals(stateResponseM.getState().stateUUID()); |
| 97 | + }); |
| 98 | + // cluster state response time with term check enabled on datanode |
| 99 | + isTermVersionCheckEnabled.set(true); |
| 100 | + { |
| 101 | + List<Long> latencies = new ArrayList<>(); |
| 102 | + IntStream.range(0, 50).forEachOrdered(n1 -> { |
| 103 | + ClusterStateRequest clusterStateRequest = new ClusterStateRequest(); |
| 104 | + long start = System.currentTimeMillis(); |
| 105 | + ClusterStateResponse stateResponse = dataNodeClient().admin().cluster().state(clusterStateRequest).actionGet(); |
| 106 | + latencies.add(System.currentTimeMillis() - start); |
| 107 | + assertThat(stateResponse.getClusterName().value(), is(internalCluster().getClusterName())); |
| 108 | + assertThat(stateResponse.getState().nodes().getSize(), is(internalCluster().getNodeNames().length)); |
| 109 | + assertThat(stateResponse.getState().metadata().indices().size(), is(indices.size())); |
| 110 | + Map<String, Object> fieldMappings = (Map<String, Object>) stateResponse.getState() |
| 111 | + .metadata() |
| 112 | + .index(indices.get(0)) |
| 113 | + .mapping() |
| 114 | + .sourceAsMap() |
| 115 | + .get("properties"); |
| 116 | + |
| 117 | + assertThat(fieldMappings.size(), is(10000)); |
| 118 | + }); |
| 119 | + Collections.sort(latencies); |
| 120 | + |
| 121 | + logger.info("cluster().state() fetch with Term Version enabled took {} milliseconds", (latencies.get(latencies.size() / 2))); |
| 122 | + } |
| 123 | + // cluster state response time with term check disabled on datanode |
| 124 | + isTermVersionCheckEnabled.set(false); |
| 125 | + { |
| 126 | + List<Long> latencies = new ArrayList<>(); |
| 127 | + IntStream.range(0, 50).forEachOrdered(n1 -> { |
| 128 | + ClusterStateRequest clusterStateRequest = new ClusterStateRequest(); |
| 129 | + long start = System.currentTimeMillis(); |
| 130 | + ClusterStateResponse stateResponse = dataNodeClient().admin().cluster().state(clusterStateRequest).actionGet(); |
| 131 | + latencies.add(System.currentTimeMillis() - start); |
| 132 | + assertThat(stateResponse.getClusterName().value(), is(internalCluster().getClusterName())); |
| 133 | + assertThat(stateResponse.getState().nodes().getSize(), is(internalCluster().getNodeNames().length)); |
| 134 | + assertThat(stateResponse.getState().metadata().indices().size(), is(indices.size())); |
| 135 | + Map<String, Object> typeProperties = (Map<String, Object>) stateResponse.getState() |
| 136 | + .metadata() |
| 137 | + .index(indices.get(0)) |
| 138 | + .mapping() |
| 139 | + .sourceAsMap() |
| 140 | + .get("properties"); |
| 141 | + assertThat(typeProperties.size(), is(10000)); |
| 142 | + |
| 143 | + }); |
| 144 | + Collections.sort(latencies); |
| 145 | + logger.info("cluster().state() fetch with Term Version disabled took {} milliseconds", (latencies.get(latencies.size() / 2))); |
| 146 | + } |
| 147 | + |
| 148 | + } |
| 149 | + |
| 150 | + private void stubClusterTermResponse(String master) { |
| 151 | + MockTransportService primaryService = (MockTransportService) internalCluster().getInstance(TransportService.class, master); |
| 152 | + primaryService.addRequestHandlingBehavior(GetTermVersionAction.NAME, (handler, request, channel, task) -> { |
| 153 | + if (isTermVersionCheckEnabled.get()) { |
| 154 | + handler.messageReceived(request, channel, task); |
| 155 | + } else { |
| 156 | + // always return response that does not match |
| 157 | + channel.sendResponse(new GetTermVersionResponse(new ClusterStateTermVersion(new ClusterName("test"), "1", -1, -1))); |
| 158 | + } |
| 159 | + }); |
| 160 | + } |
| 161 | +} |
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