1.SettingsModule概述
/** * A module that binds the provided settings to the {@link Settings} interface. */
2.Setting
2.1 IndexScopedSettings
/** * Encapsulates all valid index level settings. * @see Property#IndexScope */
内置的设置
public static final Set<Setting<?>> BUILT_IN_INDEX_SETTINGS = Collections.unmodifiableSet(new HashSet<>(Arrays.asList( MaxRetryAllocationDecider.SETTING_ALLOCATION_MAX_RETRY, MergeSchedulerConfig.AUTO_THROTTLE_SETTING, MergeSchedulerConfig.MAX_MERGE_COUNT_SETTING, MergeSchedulerConfig.MAX_THREAD_COUNT_SETTING, IndexMetaData.SETTING_INDEX_VERSION_CREATED, IndexMetaData.INDEX_ROUTING_EXCLUDE_GROUP_SETTING, IndexMetaData.INDEX_ROUTING_INCLUDE_GROUP_SETTING, IndexMetaData.INDEX_ROUTING_REQUIRE_GROUP_SETTING, IndexMetaData.INDEX_AUTO_EXPAND_REPLICAS_SETTING, IndexMetaData.INDEX_NUMBER_OF_REPLICAS_SETTING, IndexMetaData.INDEX_NUMBER_OF_SHARDS_SETTING, IndexMetaData.INDEX_ROUTING_PARTITION_SIZE_SETTING, IndexMetaData.INDEX_NUMBER_OF_ROUTING_SHARDS_SETTING, IndexMetaData.INDEX_READ_ONLY_SETTING, IndexMetaData.INDEX_BLOCKS_READ_SETTING, IndexMetaData.INDEX_BLOCKS_WRITE_SETTING, IndexMetaData.INDEX_BLOCKS_METADATA_SETTING, IndexMetaData.INDEX_BLOCKS_READ_ONLY_ALLOW_DELETE_SETTING, IndexMetaData.INDEX_PRIORITY_SETTING, IndexMetaData.INDEX_DATA_PATH_SETTING, IndexMetaData.INDEX_FORMAT_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_FETCH_DEBUG_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_FETCH_WARN_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_FETCH_INFO_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_FETCH_TRACE_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_QUERY_WARN_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_QUERY_DEBUG_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_QUERY_INFO_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_THRESHOLD_QUERY_TRACE_SETTING, SearchSlowLog.INDEX_SEARCH_SLOWLOG_LEVEL, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_THRESHOLD_INDEX_WARN_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_THRESHOLD_INDEX_DEBUG_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_THRESHOLD_INDEX_INFO_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_THRESHOLD_INDEX_TRACE_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_LEVEL_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_REFORMAT_SETTING, IndexingSlowLog.INDEX_INDEXING_SLOWLOG_MAX_SOURCE_CHARS_TO_LOG_SETTING, MergePolicyConfig.INDEX_COMPOUND_FORMAT_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_DELETES_PCT_ALLOWED_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_EXPUNGE_DELETES_ALLOWED_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_FLOOR_SEGMENT_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGE_AT_ONCE_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGE_AT_ONCE_EXPLICIT_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_MAX_MERGED_SEGMENT_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_SEGMENTS_PER_TIER_SETTING, MergePolicyConfig.INDEX_MERGE_POLICY_RECLAIM_DELETES_WEIGHT_SETTING, IndexSortConfig.INDEX_SORT_FIELD_SETTING, IndexSortConfig.INDEX_SORT_ORDER_SETTING, IndexSortConfig.INDEX_SORT_MISSING_SETTING, IndexSortConfig.INDEX_SORT_MODE_SETTING, IndexSettings.INDEX_TRANSLOG_DURABILITY_SETTING, IndexSettings.INDEX_WARMER_ENABLED_SETTING, IndexSettings.INDEX_REFRESH_INTERVAL_SETTING, IndexSettings.MAX_RESULT_WINDOW_SETTING, IndexSettings.MAX_INNER_RESULT_WINDOW_SETTING, IndexSettings.MAX_TOKEN_COUNT_SETTING, IndexSettings.MAX_DOCVALUE_FIELDS_SEARCH_SETTING, IndexSettings.MAX_SCRIPT_FIELDS_SETTING, IndexSettings.MAX_NGRAM_DIFF_SETTING, IndexSettings.MAX_SHINGLE_DIFF_SETTING, IndexSettings.MAX_RESCORE_WINDOW_SETTING, IndexSettings.MAX_ADJACENCY_MATRIX_FILTERS_SETTING, IndexSettings.MAX_ANALYZED_OFFSET_SETTING, IndexSettings.MAX_TERMS_COUNT_SETTING, IndexSettings.INDEX_TRANSLOG_SYNC_INTERVAL_SETTING, IndexSettings.DEFAULT_FIELD_SETTING, IndexSettings.QUERY_STRING_LENIENT_SETTING, IndexSettings.ALLOW_UNMAPPED, IndexSettings.INDEX_CHECK_ON_STARTUP, IndexSettings.MAX_REFRESH_LISTENERS_PER_SHARD, IndexSettings.MAX_SLICES_PER_SCROLL, IndexSettings.MAX_REGEX_LENGTH_SETTING, ShardsLimitAllocationDecider.INDEX_TOTAL_SHARDS_PER_NODE_SETTING, IndexSettings.INDEX_GC_DELETES_SETTING, IndexSettings.INDEX_SOFT_DELETES_SETTING, IndexSettings.INDEX_SOFT_DELETES_RETENTION_OPERATIONS_SETTING, IndicesRequestCache.INDEX_CACHE_REQUEST_ENABLED_SETTING, UnassignedInfo.INDEX_DELAYED_NODE_LEFT_TIMEOUT_SETTING, EnableAllocationDecider.INDEX_ROUTING_REBALANCE_ENABLE_SETTING, EnableAllocationDecider.INDEX_ROUTING_ALLOCATION_ENABLE_SETTING, IndexSettings.INDEX_TRANSLOG_FLUSH_THRESHOLD_SIZE_SETTING, IndexSettings.INDEX_TRANSLOG_GENERATION_THRESHOLD_SIZE_SETTING, IndexSettings.INDEX_TRANSLOG_RETENTION_AGE_SETTING, IndexSettings.INDEX_TRANSLOG_RETENTION_SIZE_SETTING, IndexSettings.INDEX_SEARCH_IDLE_AFTER, IndexSettings.INDEX_SEARCH_THROTTLED, IndexFieldDataService.INDEX_FIELDDATA_CACHE_KEY, FieldMapper.IGNORE_MALFORMED_SETTING, FieldMapper.COERCE_SETTING, Store.INDEX_STORE_STATS_REFRESH_INTERVAL_SETTING, MapperService.INDEX_MAPPER_DYNAMIC_SETTING, MapperService.INDEX_MAPPING_NESTED_FIELDS_LIMIT_SETTING, MapperService.INDEX_MAPPING_NESTED_DOCS_LIMIT_SETTING, MapperService.INDEX_MAPPING_TOTAL_FIELDS_LIMIT_SETTING, MapperService.INDEX_MAPPING_DEPTH_LIMIT_SETTING, BitsetFilterCache.INDEX_LOAD_RANDOM_ACCESS_FILTERS_EAGERLY_SETTING, IndexModule.INDEX_STORE_TYPE_SETTING, IndexModule.INDEX_STORE_PRE_LOAD_SETTING, IndexModule.INDEX_QUERY_CACHE_ENABLED_SETTING, FsDirectoryService.INDEX_LOCK_FACTOR_SETTING, EngineConfig.INDEX_CODEC_SETTING, EngineConfig.INDEX_OPTIMIZE_AUTO_GENERATED_IDS, IndexMetaData.SETTING_WAIT_FOR_ACTIVE_SHARDS, IndexSettings.DEFAULT_PIPELINE, // validate that built-in similarities don't get redefined Setting.groupSetting("index.similarity.", (s) -> { Map<String, Settings> groups = s.getAsGroups(); for (String key : SimilarityService.BUILT_IN.keySet()) { if (groups.containsKey(key)) { throw new IllegalArgumentException("illegal value for [index.similarity." + key + "] cannot redefine built-in similarity"); } } }, Property.IndexScope), // this allows similarity settings to be passed Setting.groupSetting("index.analysis.", Property.IndexScope) // this allows analysis settings to be passed )));
包含的setting结构图如下：
2.2 ClusterSettings
/** * Encapsulates all valid cluster level settings. */
内置的设置
public static Set<Setting<?>> BUILT_IN_CLUSTER_SETTINGS = Collections.unmodifiableSet(new HashSet<>( Arrays.asList(AwarenessAllocationDecider.CLUSTER_ROUTING_ALLOCATION_AWARENESS_ATTRIBUTE_SETTING, TransportClient.CLIENT_TRANSPORT_NODES_SAMPLER_INTERVAL, // TODO these transport client settings are kind // of odd here and should only be valid if we are a transport client TransportClient.CLIENT_TRANSPORT_PING_TIMEOUT, TransportClient.CLIENT_TRANSPORT_IGNORE_CLUSTER_NAME, TransportClient.CLIENT_TRANSPORT_SNIFF, AwarenessAllocationDecider.CLUSTER_ROUTING_ALLOCATION_AWARENESS_FORCE_GROUP_SETTING, BalancedShardsAllocator.INDEX_BALANCE_FACTOR_SETTING, BalancedShardsAllocator.SHARD_BALANCE_FACTOR_SETTING, BalancedShardsAllocator.THRESHOLD_SETTING, ClusterRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ALLOW_REBALANCE_SETTING, ConcurrentRebalanceAllocationDecider.CLUSTER_ROUTING_ALLOCATION_CLUSTER_CONCURRENT_REBALANCE_SETTING, EnableAllocationDecider.CLUSTER_ROUTING_ALLOCATION_ENABLE_SETTING, EnableAllocationDecider.CLUSTER_ROUTING_REBALANCE_ENABLE_SETTING, FilterAllocationDecider.CLUSTER_ROUTING_INCLUDE_GROUP_SETTING, FilterAllocationDecider.CLUSTER_ROUTING_EXCLUDE_GROUP_SETTING, FilterAllocationDecider.CLUSTER_ROUTING_REQUIRE_GROUP_SETTING, FsRepository.REPOSITORIES_CHUNK_SIZE_SETTING, FsRepository.REPOSITORIES_COMPRESS_SETTING, FsRepository.REPOSITORIES_LOCATION_SETTING, IndicesQueryCache.INDICES_CACHE_QUERY_SIZE_SETTING, IndicesQueryCache.INDICES_CACHE_QUERY_COUNT_SETTING, IndicesQueryCache.INDICES_QUERIES_CACHE_ALL_SEGMENTS_SETTING, MappingUpdatedAction.INDICES_MAPPING_DYNAMIC_TIMEOUT_SETTING, MetaData.SETTING_READ_ONLY_SETTING, MetaData.SETTING_READ_ONLY_ALLOW_DELETE_SETTING, MetaData.SETTING_CLUSTER_MAX_SHARDS_PER_NODE, RecoverySettings.INDICES_RECOVERY_MAX_BYTES_PER_SEC_SETTING, RecoverySettings.INDICES_RECOVERY_RETRY_DELAY_STATE_SYNC_SETTING, RecoverySettings.INDICES_RECOVERY_RETRY_DELAY_NETWORK_SETTING, RecoverySettings.INDICES_RECOVERY_ACTIVITY_TIMEOUT_SETTING, RecoverySettings.INDICES_RECOVERY_INTERNAL_ACTION_TIMEOUT_SETTING, RecoverySettings.INDICES_RECOVERY_INTERNAL_LONG_ACTION_TIMEOUT_SETTING, ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_INITIAL_PRIMARIES_RECOVERIES_SETTING, ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_INCOMING_RECOVERIES_SETTING, ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_OUTGOING_RECOVERIES_SETTING, ThrottlingAllocationDecider.CLUSTER_ROUTING_ALLOCATION_NODE_CONCURRENT_RECOVERIES_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_LOW_DISK_WATERMARK_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_HIGH_DISK_WATERMARK_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_DISK_FLOOD_STAGE_WATERMARK_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_DISK_THRESHOLD_ENABLED_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_INCLUDE_RELOCATIONS_SETTING, DiskThresholdSettings.CLUSTER_ROUTING_ALLOCATION_REROUTE_INTERVAL_SETTING, SameShardAllocationDecider.CLUSTER_ROUTING_ALLOCATION_SAME_HOST_SETTING, InternalClusterInfoService.INTERNAL_CLUSTER_INFO_UPDATE_INTERVAL_SETTING, InternalClusterInfoService.INTERNAL_CLUSTER_INFO_TIMEOUT_SETTING, DestructiveOperations.REQUIRES_NAME_SETTING, DiscoverySettings.PUBLISH_TIMEOUT_SETTING, DiscoverySettings.PUBLISH_DIFF_ENABLE_SETTING, DiscoverySettings.COMMIT_TIMEOUT_SETTING, DiscoverySettings.NO_MASTER_BLOCK_SETTING, GatewayService.EXPECTED_DATA_NODES_SETTING, GatewayService.EXPECTED_MASTER_NODES_SETTING, GatewayService.EXPECTED_NODES_SETTING, GatewayService.RECOVER_AFTER_DATA_NODES_SETTING, GatewayService.RECOVER_AFTER_MASTER_NODES_SETTING, GatewayService.RECOVER_AFTER_NODES_SETTING, GatewayService.RECOVER_AFTER_TIME_SETTING, NetworkModule.HTTP_DEFAULT_TYPE_SETTING, NetworkModule.TRANSPORT_DEFAULT_TYPE_SETTING, NetworkModule.HTTP_TYPE_SETTING, NetworkModule.TRANSPORT_TYPE_SETTING, HttpTransportSettings.SETTING_CORS_ALLOW_CREDENTIALS, HttpTransportSettings.SETTING_CORS_ENABLED, HttpTransportSettings.SETTING_CORS_MAX_AGE, HttpTransportSettings.SETTING_HTTP_DETAILED_ERRORS_ENABLED, HttpTransportSettings.SETTING_CORS_ALLOW_ORIGIN, HttpTransportSettings.SETTING_HTTP_HOST, HttpTransportSettings.SETTING_HTTP_PUBLISH_HOST, HttpTransportSettings.SETTING_HTTP_BIND_HOST, HttpTransportSettings.SETTING_HTTP_PORT, HttpTransportSettings.SETTING_HTTP_PUBLISH_PORT, HttpTransportSettings.SETTING_PIPELINING_MAX_EVENTS, HttpTransportSettings.SETTING_HTTP_COMPRESSION, HttpTransportSettings.SETTING_HTTP_COMPRESSION_LEVEL, HttpTransportSettings.SETTING_CORS_ALLOW_METHODS, HttpTransportSettings.SETTING_CORS_ALLOW_HEADERS, HttpTransportSettings.SETTING_HTTP_DETAILED_ERRORS_ENABLED, HttpTransportSettings.SETTING_HTTP_CONTENT_TYPE_REQUIRED, HttpTransportSettings.SETTING_HTTP_MAX_CONTENT_LENGTH, HttpTransportSettings.SETTING_HTTP_MAX_CHUNK_SIZE, HttpTransportSettings.SETTING_HTTP_MAX_HEADER_SIZE, HttpTransportSettings.SETTING_HTTP_MAX_WARNING_HEADER_COUNT, HttpTransportSettings.SETTING_HTTP_MAX_WARNING_HEADER_SIZE, HttpTransportSettings.SETTING_HTTP_MAX_INITIAL_LINE_LENGTH, HttpTransportSettings.SETTING_HTTP_READ_TIMEOUT, HttpTransportSettings.SETTING_HTTP_RESET_COOKIES, HttpTransportSettings.SETTING_HTTP_TCP_NO_DELAY, HttpTransportSettings.SETTING_HTTP_TCP_KEEP_ALIVE, HttpTransportSettings.SETTING_HTTP_TCP_REUSE_ADDRESS, HttpTransportSettings.SETTING_HTTP_TCP_SEND_BUFFER_SIZE, HttpTransportSettings.SETTING_HTTP_TCP_RECEIVE_BUFFER_SIZE, HierarchyCircuitBreakerService.USE_REAL_MEMORY_USAGE_SETTING, HierarchyCircuitBreakerService.TOTAL_CIRCUIT_BREAKER_LIMIT_SETTING, HierarchyCircuitBreakerService.FIELDDATA_CIRCUIT_BREAKER_LIMIT_SETTING, HierarchyCircuitBreakerService.FIELDDATA_CIRCUIT_BREAKER_OVERHEAD_SETTING, HierarchyCircuitBreakerService.IN_FLIGHT_REQUESTS_CIRCUIT_BREAKER_LIMIT_SETTING, HierarchyCircuitBreakerService.IN_FLIGHT_REQUESTS_CIRCUIT_BREAKER_OVERHEAD_SETTING, HierarchyCircuitBreakerService.REQUEST_CIRCUIT_BREAKER_LIMIT_SETTING, HierarchyCircuitBreakerService.REQUEST_CIRCUIT_BREAKER_OVERHEAD_SETTING, HierarchyCircuitBreakerService.ACCOUNTING_CIRCUIT_BREAKER_LIMIT_SETTING, HierarchyCircuitBreakerService.ACCOUNTING_CIRCUIT_BREAKER_OVERHEAD_SETTING, IndexModule.NODE_STORE_ALLOW_MMAPFS, ClusterService.CLUSTER_SERVICE_SLOW_TASK_LOGGING_THRESHOLD_SETTING, ClusterService.USER_DEFINED_META_DATA, SearchService.DEFAULT_SEARCH_TIMEOUT_SETTING, SearchService.DEFAULT_ALLOW_PARTIAL_SEARCH_RESULTS, ElectMasterService.DISCOVERY_ZEN_MINIMUM_MASTER_NODES_SETTING, TransportSearchAction.SHARD_COUNT_LIMIT_SETTING, RemoteClusterAware.REMOTE_CLUSTERS_SEEDS, RemoteClusterAware.SEARCH_REMOTE_CLUSTERS_SEEDS, RemoteClusterAware.REMOTE_CLUSTERS_PROXY, RemoteClusterAware.SEARCH_REMOTE_CLUSTERS_PROXY, RemoteClusterService.REMOTE_CLUSTER_SKIP_UNAVAILABLE, RemoteClusterService.SEARCH_REMOTE_CLUSTER_SKIP_UNAVAILABLE, RemoteClusterService.REMOTE_CONNECTIONS_PER_CLUSTER, RemoteClusterService.SEARCH_REMOTE_CONNECTIONS_PER_CLUSTER, RemoteClusterService.REMOTE_INITIAL_CONNECTION_TIMEOUT_SETTING, RemoteClusterService.SEARCH_REMOTE_INITIAL_CONNECTION_TIMEOUT_SETTING, RemoteClusterService.REMOTE_NODE_ATTRIBUTE, RemoteClusterService.SEARCH_REMOTE_NODE_ATTRIBUTE, RemoteClusterService.ENABLE_REMOTE_CLUSTERS, RemoteClusterService.SEARCH_ENABLE_REMOTE_CLUSTERS, TransportService.TRACE_LOG_EXCLUDE_SETTING, TransportService.TRACE_LOG_INCLUDE_SETTING, TransportCloseIndexAction.CLUSTER_INDICES_CLOSE_ENABLE_SETTING, ShardsLimitAllocationDecider.CLUSTER_TOTAL_SHARDS_PER_NODE_SETTING, NodeConnectionsService.CLUSTER_NODE_RECONNECT_INTERVAL_SETTING, HierarchyCircuitBreakerService.FIELDDATA_CIRCUIT_BREAKER_TYPE_SETTING, HierarchyCircuitBreakerService.REQUEST_CIRCUIT_BREAKER_TYPE_SETTING, Transport.TRANSPORT_TCP_COMPRESS, TcpTransport.HOST, TcpTransport.PUBLISH_HOST, TcpTransport.BIND_HOST, TcpTransport.PUBLISH_PORT, TcpTransport.PORT, TcpTransport.BIND_HOST_PROFILE, TcpTransport.PUBLISH_HOST_PROFILE, TcpTransport.PUBLISH_PORT_PROFILE, TcpTransport.PORT_PROFILE, TcpTransport.TCP_NO_DELAY_PROFILE, TcpTransport.TCP_KEEP_ALIVE_PROFILE, TcpTransport.TCP_REUSE_ADDRESS_PROFILE, TcpTransport.TCP_SEND_BUFFER_SIZE_PROFILE, TcpTransport.TCP_RECEIVE_BUFFER_SIZE_PROFILE, TransportService.CONNECTIONS_PER_NODE_RECOVERY, TransportService.CONNECTIONS_PER_NODE_BULK, TransportService.CONNECTIONS_PER_NODE_REG, TransportService.CONNECTIONS_PER_NODE_STATE, TransportService.CONNECTIONS_PER_NODE_PING, TransportService.TCP_CONNECT_TIMEOUT, TcpTransport.PING_SCHEDULE, NetworkService.NETWORK_SERVER, TcpTransport.TCP_NO_DELAY, TcpTransport.TCP_KEEP_ALIVE, TcpTransport.TCP_REUSE_ADDRESS, TcpTransport.TCP_SEND_BUFFER_SIZE, TcpTransport.TCP_RECEIVE_BUFFER_SIZE, NetworkService.GLOBAL_NETWORK_HOST_SETTING, NetworkService.GLOBAL_NETWORK_BINDHOST_SETTING, NetworkService.GLOBAL_NETWORK_PUBLISHHOST_SETTING, NetworkService.TCP_NO_DELAY, NetworkService.TCP_KEEP_ALIVE, NetworkService.TCP_REUSE_ADDRESS, NetworkService.TCP_SEND_BUFFER_SIZE, NetworkService.TCP_RECEIVE_BUFFER_SIZE, NetworkService.TCP_CONNECT_TIMEOUT, IndexSettings.QUERY_STRING_ANALYZE_WILDCARD, IndexSettings.QUERY_STRING_ALLOW_LEADING_WILDCARD, ScriptService.SCRIPT_CACHE_SIZE_SETTING, ScriptService.SCRIPT_CACHE_EXPIRE_SETTING, ScriptService.SCRIPT_MAX_SIZE_IN_BYTES, ScriptService.SCRIPT_MAX_COMPILATIONS_RATE, ScriptService.TYPES_ALLOWED_SETTING, ScriptService.CONTEXTS_ALLOWED_SETTING, IndicesService.INDICES_CACHE_CLEAN_INTERVAL_SETTING, IndicesFieldDataCache.INDICES_FIELDDATA_CACHE_SIZE_KEY, IndicesRequestCache.INDICES_CACHE_QUERY_SIZE, IndicesRequestCache.INDICES_CACHE_QUERY_EXPIRE, HunspellService.HUNSPELL_LAZY_LOAD, HunspellService.HUNSPELL_IGNORE_CASE, HunspellService.HUNSPELL_DICTIONARY_OPTIONS, IndicesStore.INDICES_STORE_DELETE_SHARD_TIMEOUT, Environment.PATH_DATA_SETTING, Environment.PATH_HOME_SETTING, Environment.PATH_LOGS_SETTING, Environment.PATH_REPO_SETTING, Environment.PATH_SHARED_DATA_SETTING, Environment.PIDFILE_SETTING, NodeEnvironment.NODE_ID_SEED_SETTING, DiscoverySettings.INITIAL_STATE_TIMEOUT_SETTING, DiscoveryModule.DISCOVERY_TYPE_SETTING, DiscoveryModule.DISCOVERY_HOSTS_PROVIDER_SETTING, FaultDetection.PING_RETRIES_SETTING, FaultDetection.PING_TIMEOUT_SETTING, FaultDetection.REGISTER_CONNECTION_LISTENER_SETTING, FaultDetection.PING_INTERVAL_SETTING, FaultDetection.CONNECT_ON_NETWORK_DISCONNECT_SETTING, ZenDiscovery.PING_TIMEOUT_SETTING, ZenDiscovery.JOIN_TIMEOUT_SETTING, ZenDiscovery.JOIN_RETRY_ATTEMPTS_SETTING, ZenDiscovery.JOIN_RETRY_DELAY_SETTING, ZenDiscovery.MAX_PINGS_FROM_ANOTHER_MASTER_SETTING, ZenDiscovery.SEND_LEAVE_REQUEST_SETTING, ZenDiscovery.MASTER_ELECTION_WAIT_FOR_JOINS_TIMEOUT_SETTING, ZenDiscovery.MASTER_ELECTION_IGNORE_NON_MASTER_PINGS_SETTING, ZenDiscovery.MAX_PENDING_CLUSTER_STATES_SETTING, SettingsBasedHostsProvider.DISCOVERY_ZEN_PING_UNICAST_HOSTS_SETTING, UnicastZenPing.DISCOVERY_ZEN_PING_UNICAST_CONCURRENT_CONNECTS_SETTING, UnicastZenPing.DISCOVERY_ZEN_PING_UNICAST_HOSTS_RESOLVE_TIMEOUT, SearchService.DEFAULT_KEEPALIVE_SETTING, SearchService.KEEPALIVE_INTERVAL_SETTING, SearchService.MAX_KEEPALIVE_SETTING, MultiBucketConsumerService.MAX_BUCKET_SETTING, SearchService.LOW_LEVEL_CANCELLATION_SETTING, Node.WRITE_PORTS_FILE_SETTING, Node.NODE_NAME_SETTING, Node.NODE_DATA_SETTING, Node.NODE_MASTER_SETTING, Node.NODE_INGEST_SETTING, Node.NODE_ATTRIBUTES, Node.NODE_LOCAL_STORAGE_SETTING, AutoCreateIndex.AUTO_CREATE_INDEX_SETTING, BaseRestHandler.MULTI_ALLOW_EXPLICIT_INDEX, ClusterName.CLUSTER_NAME_SETTING, Client.CLIENT_TYPE_SETTING_S, ClusterModule.SHARDS_ALLOCATOR_TYPE_SETTING, EsExecutors.PROCESSORS_SETTING, ThreadContext.DEFAULT_HEADERS_SETTING, TcpTransport.DEFAULT_FEATURES_SETTING, Loggers.LOG_DEFAULT_LEVEL_SETTING, Loggers.LOG_LEVEL_SETTING, NodeEnvironment.MAX_LOCAL_STORAGE_NODES_SETTING, NodeEnvironment.ENABLE_LUCENE_SEGMENT_INFOS_TRACE_SETTING, OsService.REFRESH_INTERVAL_SETTING, ProcessService.REFRESH_INTERVAL_SETTING, JvmService.REFRESH_INTERVAL_SETTING, FsService.REFRESH_INTERVAL_SETTING, JvmGcMonitorService.ENABLED_SETTING, JvmGcMonitorService.REFRESH_INTERVAL_SETTING, JvmGcMonitorService.GC_SETTING, JvmGcMonitorService.GC_OVERHEAD_WARN_SETTING, JvmGcMonitorService.GC_OVERHEAD_INFO_SETTING, JvmGcMonitorService.GC_OVERHEAD_DEBUG_SETTING, PageCacheRecycler.LIMIT_HEAP_SETTING, PageCacheRecycler.WEIGHT_BYTES_SETTING, PageCacheRecycler.WEIGHT_INT_SETTING, PageCacheRecycler.WEIGHT_LONG_SETTING, PageCacheRecycler.WEIGHT_OBJECTS_SETTING, PageCacheRecycler.TYPE_SETTING, PluginsService.MANDATORY_SETTING, BootstrapSettings.SECURITY_FILTER_BAD_DEFAULTS_SETTING, BootstrapSettings.MEMORY_LOCK_SETTING, BootstrapSettings.SYSTEM_CALL_FILTER_SETTING, BootstrapSettings.CTRLHANDLER_SETTING, KeyStoreWrapper.SEED_SETTING, IndexingMemoryController.INDEX_BUFFER_SIZE_SETTING, IndexingMemoryController.MIN_INDEX_BUFFER_SIZE_SETTING, IndexingMemoryController.MAX_INDEX_BUFFER_SIZE_SETTING, IndexingMemoryController.SHARD_INACTIVE_TIME_SETTING, IndexingMemoryController.SHARD_MEMORY_INTERVAL_TIME_SETTING, ResourceWatcherService.ENABLED, ResourceWatcherService.RELOAD_INTERVAL_HIGH, ResourceWatcherService.RELOAD_INTERVAL_MEDIUM, ResourceWatcherService.RELOAD_INTERVAL_LOW, SearchModule.INDICES_MAX_CLAUSE_COUNT_SETTING, ThreadPool.ESTIMATED_TIME_INTERVAL_SETTING, FastVectorHighlighter.SETTING_TV_HIGHLIGHT_MULTI_VALUE, Node.BREAKER_TYPE_KEY, OperationRouting.USE_ADAPTIVE_REPLICA_SELECTION_SETTING, IndexGraveyard.SETTING_MAX_TOMBSTONES, EnableAssignmentDecider.CLUSTER_TASKS_ALLOCATION_ENABLE_SETTING )));
包含setting的结构图如下
<图1>
<图2>
<图3>
2.3 SettingsFilter
/** * A class that allows to filter settings objects by simple regular expression patterns or full settings keys. * It's used for response filtering on the rest layer to for instance filter out sensitive information like access keys. */