diff --git a/CHANGELOG.md b/CHANGELOG.md index 52b89e57c0959..ca10ecf57e2b6 100644 --- a/CHANGELOG.md +++ b/CHANGELOG.md @@ -122,6 +122,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/), - [BWC and API enforcement] Introduce checks for enforcing the API restrictions ([#11175](https://github.com/opensearch-project/OpenSearch/pull/11175)) - Create separate transport action for render search template action ([#11170](https://github.com/opensearch-project/OpenSearch/pull/11170)) - Add additional handling in SearchTemplateRequest when simulate is set to true ([#11591](https://github.com/opensearch-project/OpenSearch/pull/11591)) +- Introduce cluster level setting `cluster.index.restrict.replication.type` to prevent replication type setting override during index creations([#11583](https://github.com/opensearch-project/OpenSearch/pull/11583)) ### Dependencies - Bump Lucene from 9.7.0 to 9.8.0 ([10276](https://github.com/opensearch-project/OpenSearch/pull/10276)) diff --git a/server/src/internalClusterTest/java/org/opensearch/indices/replication/SegmentReplicationClusterSettingIT.java b/server/src/internalClusterTest/java/org/opensearch/indices/replication/SegmentReplicationClusterSettingIT.java index a82fd8d845709..c4e8ccfc0ecec 100644 --- a/server/src/internalClusterTest/java/org/opensearch/indices/replication/SegmentReplicationClusterSettingIT.java +++ b/server/src/internalClusterTest/java/org/opensearch/indices/replication/SegmentReplicationClusterSettingIT.java @@ -10,7 +10,10 @@ import org.opensearch.action.admin.indices.settings.get.GetSettingsRequest; import org.opensearch.action.admin.indices.settings.get.GetSettingsResponse; +import org.opensearch.action.admin.indices.shrink.ResizeType; +import org.opensearch.action.admin.indices.template.get.GetIndexTemplatesResponse; import org.opensearch.cluster.metadata.IndexMetadata; +import org.opensearch.common.collect.Tuple; import org.opensearch.common.settings.Settings; import org.opensearch.core.index.Index; import org.opensearch.index.IndexModule; @@ -18,8 +21,15 @@ import org.opensearch.indices.replication.common.ReplicationType; import org.opensearch.test.OpenSearchIntegTestCase; +import java.util.ArrayList; +import java.util.Collections; +import java.util.List; +import java.util.Locale; + import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_REPLICATION_TYPE; +import static org.opensearch.indices.IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_SETTING_REPLICATION_TYPE; +import static org.hamcrest.Matchers.hasSize; @OpenSearchIntegTestCase.ClusterScope(scope = OpenSearchIntegTestCase.Scope.TEST, numDataNodes = 0) public class SegmentReplicationClusterSettingIT extends OpenSearchIntegTestCase { @@ -29,6 +39,9 @@ public class SegmentReplicationClusterSettingIT extends OpenSearchIntegTestCase protected static final int SHARD_COUNT = 1; protected static final int REPLICA_COUNT = 1; + protected static final String REPLICATION_MISMATCH_VALIDATION_ERROR = + "Validation Failed: 1: index setting [index.replication.type] is not allowed to be set as [cluster.index.restrict.replication.type=true];"; + @Override public Settings indexSettings() { return Settings.builder() @@ -44,14 +57,6 @@ protected boolean addMockInternalEngine() { return false; } - @Override - protected Settings nodeSettings(int nodeOrdinal) { - return Settings.builder() - .put(super.nodeSettings(nodeOrdinal)) - .put(CLUSTER_SETTING_REPLICATION_TYPE, ReplicationType.SEGMENT) - .build(); - } - public void testIndexReplicationSettingOverridesSegRepClusterSetting() throws Exception { Settings settings = Settings.builder().put(CLUSTER_SETTING_REPLICATION_TYPE, ReplicationType.SEGMENT).build(); final String ANOTHER_INDEX = "test-index"; @@ -123,4 +128,125 @@ public void testIndexReplicationSettingOverridesDocRepClusterSetting() throws Ex assertEquals(indicesService.indexService(anotherIndex).getIndexSettings().isSegRepEnabled(), false); } + public void testReplicationTypesOverrideNotAllowed_IndexAPI() { + // Generate mutually exclusive replication strategies at cluster and index level + List replicationStrategies = getRandomReplicationTypesAsList(); + ReplicationType clusterLevelReplication = replicationStrategies.get(0); + ReplicationType indexLevelReplication = replicationStrategies.get(1); + Settings nodeSettings = Settings.builder() + .put(CLUSTER_SETTING_REPLICATION_TYPE, clusterLevelReplication) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + internalCluster().startClusterManagerOnlyNode(nodeSettings); + internalCluster().startDataOnlyNode(nodeSettings); + Settings indexSettings = Settings.builder().put(indexSettings()).put(SETTING_REPLICATION_TYPE, indexLevelReplication).build(); + IllegalArgumentException exception = expectThrows(IllegalArgumentException.class, () -> createIndex(INDEX_NAME, indexSettings)); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getMessage()); + } + + public void testReplicationTypesOverrideNotAllowed_WithTemplates() { + // Generate mutually exclusive replication strategies at cluster and index level + List replicationStrategies = getRandomReplicationTypesAsList(); + ReplicationType clusterLevelReplication = replicationStrategies.get(0); + ReplicationType templateReplicationType = replicationStrategies.get(1); + Settings nodeSettings = Settings.builder() + .put(CLUSTER_SETTING_REPLICATION_TYPE, clusterLevelReplication) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + internalCluster().startClusterManagerOnlyNode(nodeSettings); + internalCluster().startDataOnlyNode(nodeSettings); + internalCluster().startDataOnlyNode(nodeSettings); + logger.info( + "--> Create index with template replication {} and cluster level replication {}", + templateReplicationType, + clusterLevelReplication + ); + // Create index template + client().admin() + .indices() + .preparePutTemplate("template_1") + .setPatterns(Collections.singletonList("test-idx*")) + .setSettings(Settings.builder().put(indexSettings()).put(SETTING_REPLICATION_TYPE, templateReplicationType).build()) + .setOrder(0) + .get(); + + GetIndexTemplatesResponse response = client().admin().indices().prepareGetTemplates().get(); + assertThat(response.getIndexTemplates(), hasSize(1)); + IllegalArgumentException exception = expectThrows(IllegalArgumentException.class, () -> createIndex(INDEX_NAME)); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getMessage()); + } + + public void testReplicationTypesOverrideNotAllowed_WithResizeAction() { + // Generate mutually exclusive replication strategies at cluster and index level + List replicationStrategies = getRandomReplicationTypesAsList(); + ReplicationType clusterLevelReplication = replicationStrategies.get(0); + ReplicationType indexLevelReplication = replicationStrategies.get(1); + Settings nodeSettings = Settings.builder() + .put(CLUSTER_SETTING_REPLICATION_TYPE, clusterLevelReplication) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + internalCluster().startClusterManagerOnlyNode(nodeSettings); + internalCluster().startDataOnlyNode(nodeSettings); + internalCluster().startDataOnlyNode(nodeSettings); + logger.info( + "--> Create index with index level replication {} and cluster level replication {}", + indexLevelReplication, + clusterLevelReplication + ); + + // Define resize action and target shard count. + List> resizeActionsList = new ArrayList<>(); + final int initialShardCount = 2; + resizeActionsList.add(new Tuple<>(ResizeType.SPLIT, 2 * initialShardCount)); + resizeActionsList.add(new Tuple<>(ResizeType.SHRINK, SHARD_COUNT)); + resizeActionsList.add(new Tuple<>(ResizeType.CLONE, initialShardCount)); + + Tuple resizeActionTuple = resizeActionsList.get(random().nextInt(resizeActionsList.size())); + final String targetIndexName = resizeActionTuple.v1().name().toLowerCase(Locale.ROOT) + "-target"; + + logger.info("--> Performing resize action {} with shard count {}", resizeActionTuple.v1(), resizeActionTuple.v2()); + + Settings indexSettings = Settings.builder() + .put(indexSettings()) + .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, initialShardCount) + .put(SETTING_REPLICATION_TYPE, clusterLevelReplication) + .build(); + createIndex(INDEX_NAME, indexSettings); + + // Block writes + client().admin().indices().prepareUpdateSettings(INDEX_NAME).setSettings(Settings.builder().put("index.blocks.write", true)).get(); + ensureGreen(); + + // Validate resize action fails + IllegalArgumentException exception = expectThrows( + IllegalArgumentException.class, + () -> client().admin() + .indices() + .prepareResizeIndex(INDEX_NAME, targetIndexName) + .setResizeType(resizeActionTuple.v1()) + .setSettings( + Settings.builder() + .put("index.number_of_replicas", 0) + .put("index.number_of_shards", resizeActionTuple.v2()) + .putNull("index.blocks.write") + .put(SETTING_REPLICATION_TYPE, indexLevelReplication) + .build() + ) + .get() + ); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getMessage()); + } + + /** + * Generate a list of ReplicationType with random ordering + * + * @return List of ReplicationType values + */ + private List getRandomReplicationTypesAsList() { + List replicationStrategies = List.of(ReplicationType.SEGMENT, ReplicationType.DOCUMENT); + int randomReplicationIndex = random().nextInt(replicationStrategies.size()); + ReplicationType clusterLevelReplication = replicationStrategies.get(randomReplicationIndex); + ReplicationType indexLevelReplication = replicationStrategies.get(1 - randomReplicationIndex); + return List.of(clusterLevelReplication, indexLevelReplication); + } } diff --git a/server/src/internalClusterTest/java/org/opensearch/snapshots/SegmentReplicationSnapshotIT.java b/server/src/internalClusterTest/java/org/opensearch/snapshots/SegmentReplicationSnapshotIT.java index c2ce7e48f92d2..2c12c0abb202b 100644 --- a/server/src/internalClusterTest/java/org/opensearch/snapshots/SegmentReplicationSnapshotIT.java +++ b/server/src/internalClusterTest/java/org/opensearch/snapshots/SegmentReplicationSnapshotIT.java @@ -31,6 +31,7 @@ import java.util.concurrent.TimeUnit; import static org.opensearch.cluster.metadata.IndexMetadata.SETTING_REPLICATION_TYPE; +import static org.opensearch.indices.IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_SETTING_REPLICATION_TYPE; import static org.opensearch.indices.replication.SegmentReplicationBaseIT.waitForSearchableDocs; import static org.opensearch.test.hamcrest.OpenSearchAssertions.assertAcked; @@ -47,6 +48,9 @@ public class SegmentReplicationSnapshotIT extends AbstractSnapshotIntegTestCase private static final String REPOSITORY_NAME = "test-segrep-repo"; private static final String SNAPSHOT_NAME = "test-segrep-snapshot"; + protected static final String REPLICATION_MISMATCH_VALIDATION_ERROR = + "Validation Failed: 1: index setting [index.replication.type] is not allowed to be set as [cluster.index.restrict.replication.type=true];"; + public Settings segRepEnableIndexSettings() { return getShardSettings().put(IndexMetadata.SETTING_REPLICATION_TYPE, ReplicationType.SEGMENT).build(); } @@ -306,4 +310,63 @@ public void testSnapshotRestoreOnIndexWithSegRepClusterSetting() throws Exceptio IndicesService indicesService = internalCluster().getInstance(IndicesService.class); assertEquals(indicesService.indexService(index).getIndexSettings().isSegRepEnabled(), false); } + + /** + * 1. Create index in DOCUMENT replication type + * 2. Snapshot index + * 3. Add new set of nodes with `cluster.indices.replication.strategy` set to SEGMENT and `cluster.index.restrict.replication.type` + * set to true. + * 4. Perform restore on new set of nodes to validate restored index has `DOCUMENT` replication. + */ + public void testSnapshotRestoreOnRestrictReplicationSetting() throws Exception { + final int documentCount = scaledRandomIntBetween(1, 10); + String originalClusterManagerNode = internalCluster().startClusterManagerOnlyNode(); + + // Starting two nodes with primary and replica shards respectively. + final String primaryNode = internalCluster().startDataOnlyNode(); + prepareCreate( + INDEX_NAME, + Settings.builder() + // we want to override cluster replication setting by passing a index replication setting + .put(IndexMetadata.SETTING_REPLICATION_TYPE, ReplicationType.DOCUMENT) + .put(IndexMetadata.SETTING_NUMBER_OF_REPLICAS, REPLICA_COUNT) + .put(IndexMetadata.SETTING_NUMBER_OF_SHARDS, SHARD_COUNT) + ).get(); + ensureYellowAndNoInitializingShards(INDEX_NAME); + final String replicaNode = internalCluster().startDataOnlyNode(); + ensureGreen(INDEX_NAME); + + for (int i = 0; i < documentCount; i++) { + client().prepareIndex(INDEX_NAME).setId(String.valueOf(i)).setSource("foo", "bar").get(); + } + + createSnapshot(); + + // Delete index + assertAcked(client().admin().indices().delete(new DeleteIndexRequest(INDEX_NAME)).get()); + assertFalse("index [" + INDEX_NAME + "] should have been deleted", indexExists(INDEX_NAME)); + + // Start new set of nodes with cluster level replication type setting and restrict replication type setting. + Settings settings = Settings.builder() + .put(CLUSTER_SETTING_REPLICATION_TYPE, ReplicationType.SEGMENT) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + + // Start new cluster manager node + String newClusterManagerNode = internalCluster().startClusterManagerOnlyNode(settings); + + // Remove older nodes + internalCluster().stopRandomNode(InternalTestCluster.nameFilter(originalClusterManagerNode)); + internalCluster().stopRandomNode(InternalTestCluster.nameFilter(primaryNode)); + internalCluster().stopRandomNode(InternalTestCluster.nameFilter(replicaNode)); + + String newPrimaryNode = internalCluster().startDataOnlyNode(settings); + String newReplicaNode = internalCluster().startDataOnlyNode(settings); + + // Perform snapshot restore + logger.info("--> Performing snapshot restore to target index"); + + IllegalArgumentException exception = expectThrows(IllegalArgumentException.class, () -> restoreSnapshotWithSettings(null)); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getMessage()); + } } diff --git a/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java b/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java index bb1bf94f5e984..3384393d8feaf 100644 --- a/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java +++ b/server/src/main/java/org/opensearch/cluster/metadata/MetadataCreateIndexService.java @@ -907,6 +907,10 @@ static Settings aggregateIndexSettings( ); } + List validationErrors = new ArrayList<>(); + validateIndexReplicationTypeSettings(indexSettingsBuilder.build(), clusterSettings).ifPresent(validationErrors::add); + validateErrors(request.index(), validationErrors); + Settings indexSettings = indexSettingsBuilder.build(); /* * We can not validate settings until we have applied templates, otherwise we do not know the actual settings @@ -1246,7 +1250,11 @@ private void validate(CreateIndexClusterStateUpdateRequest request, ClusterState public void validateIndexSettings(String indexName, final Settings settings, final boolean forbidPrivateIndexSettings) throws IndexCreationException { List validationErrors = getIndexSettingsValidationErrors(settings, forbidPrivateIndexSettings, indexName); + validateIndexReplicationTypeSettings(settings, clusterService.getClusterSettings()).ifPresent(validationErrors::add); + validateErrors(indexName, validationErrors); + } + private static void validateErrors(String indexName, List validationErrors) { if (validationErrors.isEmpty() == false) { ValidationException validationException = new ValidationException(); validationException.addValidationErrors(validationErrors); @@ -1322,6 +1330,27 @@ private static List validateIndexCustomPath(Settings settings, @Nullable return validationErrors; } + /** + * Validates {@code index.replication.type} is matches with cluster level setting {@code cluster.indices.replication.strategy} + * when {@code cluster.index.restrict.replication.type} is set to true. + * + * @param requestSettings settings passed in during index create request + * @param clusterSettings cluster setting + */ + private static Optional validateIndexReplicationTypeSettings(Settings requestSettings, ClusterSettings clusterSettings) { + if (clusterSettings.get(IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING) + && requestSettings.hasValue(SETTING_REPLICATION_TYPE) + && requestSettings.get(INDEX_REPLICATION_TYPE_SETTING.getKey()) + .equals(clusterSettings.get(CLUSTER_REPLICATION_TYPE_SETTING).name()) == false) { + return Optional.of( + "index setting [index.replication.type] is not allowed to be set as [" + + IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey() + + "=true]" + ); + } + return Optional.empty(); + } + /** * Validates the settings and mappings for shrinking an index. * diff --git a/server/src/main/java/org/opensearch/common/settings/ClusterSettings.java b/server/src/main/java/org/opensearch/common/settings/ClusterSettings.java index 15b93f5ab7ac2..61a5a76a2d4ab 100644 --- a/server/src/main/java/org/opensearch/common/settings/ClusterSettings.java +++ b/server/src/main/java/org/opensearch/common/settings/ClusterSettings.java @@ -703,7 +703,8 @@ public void apply(Settings value, Settings current, Settings previous) { AdmissionControlSettings.ADMISSION_CONTROL_TRANSPORT_LAYER_MODE, CpuBasedAdmissionControllerSettings.CPU_BASED_ADMISSION_CONTROLLER_TRANSPORT_LAYER_MODE, CpuBasedAdmissionControllerSettings.INDEXING_CPU_USAGE_LIMIT, - CpuBasedAdmissionControllerSettings.SEARCH_CPU_USAGE_LIMIT + CpuBasedAdmissionControllerSettings.SEARCH_CPU_USAGE_LIMIT, + IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING ) ) ); diff --git a/server/src/main/java/org/opensearch/indices/IndicesService.java b/server/src/main/java/org/opensearch/indices/IndicesService.java index 3d1794f8d3197..5c3beaf8509bd 100644 --- a/server/src/main/java/org/opensearch/indices/IndicesService.java +++ b/server/src/main/java/org/opensearch/indices/IndicesService.java @@ -301,6 +301,19 @@ public class IndicesService extends AbstractLifecycleComponent Property.Final ); + /** + * If enabled, this setting enforces that indexes will be created with a replication type matching the cluster setting + * defined in cluster.indices.replication.strategy by rejecting any request that specifies a replication type that + * does not match the cluster setting. If disabled, a user can choose a replication type on a per-index basis using + * the index.replication.type setting. + */ + public static final Setting CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING = Setting.boolSetting( + "cluster.index.restrict.replication.type", + false, + Property.NodeScope, + Property.Final + ); + /** * The node's settings. */ diff --git a/server/src/test/java/org/opensearch/cluster/metadata/MetadataCreateIndexServiceTests.java b/server/src/test/java/org/opensearch/cluster/metadata/MetadataCreateIndexServiceTests.java index c4a782209421b..cea151748bfb6 100644 --- a/server/src/test/java/org/opensearch/cluster/metadata/MetadataCreateIndexServiceTests.java +++ b/server/src/test/java/org/opensearch/cluster/metadata/MetadataCreateIndexServiceTests.java @@ -71,6 +71,7 @@ import org.opensearch.index.mapper.MapperService; import org.opensearch.index.query.QueryShardContext; import org.opensearch.index.translog.Translog; +import org.opensearch.indices.IndexCreationException; import org.opensearch.indices.IndicesService; import org.opensearch.indices.InvalidAliasNameException; import org.opensearch.indices.InvalidIndexNameException; @@ -137,6 +138,7 @@ import static org.opensearch.index.IndexSettings.INDEX_SOFT_DELETES_SETTING; import static org.opensearch.index.IndexSettings.INDEX_TRANSLOG_DURABILITY_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_DEFAULT_INDEX_REFRESH_INTERVAL_SETTING; +import static org.opensearch.indices.IndicesService.CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_MINIMUM_INDEX_REFRESH_INTERVAL_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_REMOTE_INDEX_RESTRICT_ASYNC_DURABILITY_SETTING; import static org.opensearch.indices.IndicesService.CLUSTER_REPLICATION_TYPE_SETTING; @@ -166,6 +168,9 @@ public class MetadataCreateIndexServiceTests extends OpenSearchTestCase { private static final String translogRepositoryNameAttributeKey = NODE_ATTRIBUTES.getKey() + REMOTE_STORE_TRANSLOG_REPOSITORY_NAME_ATTRIBUTE_KEY; + final String REPLICATION_MISMATCH_VALIDATION_ERROR = + "Validation Failed: 1: index setting [index.replication.type] is not allowed to be set as [cluster.index.restrict.replication.type=true];"; + @Before public void setup() throws Exception { super.setUp(); @@ -1239,6 +1244,105 @@ public void testIndexTemplateReplicationType() { assertEquals(ReplicationType.SEGMENT.toString(), indexSettings.get(INDEX_REPLICATION_TYPE_SETTING.getKey())); } + public void testClusterForceReplicationTypeInAggregateSettings() { + Settings settings = Settings.builder() + .put(CLUSTER_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.SEGMENT) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + ClusterSettings clusterSettings = new ClusterSettings(settings, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS); + Settings nonMatchingReplicationIndexSettings = Settings.builder() + .put(INDEX_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.DOCUMENT) + .build(); + request = new CreateIndexClusterStateUpdateRequest("create index", "test", "test"); + request.settings(nonMatchingReplicationIndexSettings); + IndexCreationException exception = expectThrows( + IndexCreationException.class, + () -> aggregateIndexSettings( + ClusterState.EMPTY_STATE, + request, + Settings.EMPTY, + null, + Settings.EMPTY, + IndexScopedSettings.DEFAULT_SCOPED_SETTINGS, + randomShardLimitService(), + Collections.emptySet(), + clusterSettings + ) + ); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getCause().getMessage()); + + Settings matchingReplicationIndexSettings = Settings.builder() + .put(INDEX_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.SEGMENT) + .build(); + request.settings(matchingReplicationIndexSettings); + Settings aggregateIndexSettings = aggregateIndexSettings( + ClusterState.EMPTY_STATE, + request, + Settings.EMPTY, + null, + Settings.EMPTY, + IndexScopedSettings.DEFAULT_SCOPED_SETTINGS, + randomShardLimitService(), + Collections.emptySet(), + clusterSettings + ); + assertEquals(ReplicationType.SEGMENT.toString(), aggregateIndexSettings.get(INDEX_REPLICATION_TYPE_SETTING.getKey())); + } + + public void testClusterForceReplicationTypeInValidateIndexSettings() { + ClusterService clusterService = mock(ClusterService.class); + Metadata metadata = Metadata.builder() + .transientSettings(Settings.builder().put(Metadata.DEFAULT_REPLICA_COUNT_SETTING.getKey(), 1).build()) + .build(); + ClusterState clusterState = ClusterState.builder(org.opensearch.cluster.ClusterName.CLUSTER_NAME_SETTING.getDefault(Settings.EMPTY)) + .metadata(metadata) + .build(); + ThreadPool threadPool = new TestThreadPool(getTestName()); + // Enforce cluster level replication type setting + final Settings forceClusterSettingEnabled = Settings.builder() + .put(CLUSTER_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.SEGMENT) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), true) + .build(); + ClusterSettings clusterSettings = new ClusterSettings(forceClusterSettingEnabled, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS); + when(clusterService.getSettings()).thenReturn(forceClusterSettingEnabled); + when(clusterService.getClusterSettings()).thenReturn(clusterSettings); + when(clusterService.state()).thenReturn(clusterState); + + final MetadataCreateIndexService checkerService = new MetadataCreateIndexService( + forceClusterSettingEnabled, + clusterService, + null, + null, + null, + createTestShardLimitService(randomIntBetween(1, 1000), false, clusterService), + new Environment(Settings.builder().put("path.home", "dummy").build(), null), + IndexScopedSettings.DEFAULT_SCOPED_SETTINGS, + threadPool, + null, + new SystemIndices(Collections.emptyMap()), + true, + new AwarenessReplicaBalance(forceClusterSettingEnabled, clusterService.getClusterSettings()) + ); + // Use DOCUMENT replication type setting for index creation + final Settings indexSettings = Settings.builder().put(INDEX_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.DOCUMENT).build(); + + IndexCreationException exception = expectThrows( + IndexCreationException.class, + () -> checkerService.validateIndexSettings("test", indexSettings, false) + ); + assertEquals(REPLICATION_MISMATCH_VALIDATION_ERROR, exception.getCause().getMessage()); + + // Cluster level replication type setting not enforced + final Settings forceClusterSettingDisabled = Settings.builder() + .put(CLUSTER_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.SEGMENT) + .put(CLUSTER_INDEX_RESTRICT_REPLICATION_TYPE_SETTING.getKey(), false) + .build(); + clusterSettings = new ClusterSettings(forceClusterSettingDisabled, ClusterSettings.BUILT_IN_CLUSTER_SETTINGS); + when(clusterService.getClusterSettings()).thenReturn(clusterSettings); + checkerService.validateIndexSettings("test", indexSettings, false); + threadPool.shutdown(); + } + public void testRemoteStoreNoUserOverrideExceptReplicationTypeSegmentIndexSettings() { Settings settings = Settings.builder() .put(CLUSTER_REPLICATION_TYPE_SETTING.getKey(), ReplicationType.DOCUMENT)