com.datastax.oss.driver.api.core.config.DefaultDriverOption Java Examples
The following examples show how to use
com.datastax.oss.driver.api.core.config.DefaultDriverOption.
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Example #1
Source File: CassandraInterpreter.java From zeppelin with Apache License 2.0 | 5 votes |
private static void addIfNotBlank(Map<DriverOption, String> allOptions, String value, DefaultDriverOption option) { if (!StringUtils.isBlank(value)) { allOptions.put(option, value); } }
Example #2
Source File: CassandraInterpreter.java From zeppelin with Apache License 2.0 | 5 votes |
private static void addIfNotBlankOrDefault(Map<DriverOption, String> allOptions, String value, DefaultDriverOption option) { if (!StringUtils.isBlank(value) && !DEFAULT_VALUE.equalsIgnoreCase(value)) { allOptions.put(option, value); } }
Example #3
Source File: CassandraInterpreterTest.java From zeppelin with Apache License 2.0 | 5 votes |
@Test public void should_set_custom_option() throws Exception { assertThat(interpreter.session).isNotNull(); DriverExecutionProfile config = interpreter.session.getContext() .getConfig().getDefaultProfile(); assertThat(config.getInt(DefaultDriverOption.CONNECTION_POOL_LOCAL_SIZE, 10)) .isEqualTo(1); }
Example #4
Source File: BackplaneConfiguration.java From elasticactors with Apache License 2.0 | 5 votes |
@PostConstruct public void initialize() { String cassandraHosts = env.getProperty("ea.cassandra.hosts","localhost:9042"); String cassandraKeyspaceName = env.getProperty("ea.cassandra.keyspace","\"ElasticActors\""); Integer cassandraPort = env.getProperty("ea.cassandra.port", Integer.class, 9042); Set<String> hostSet = StringUtils.commaDelimitedListToSet(cassandraHosts); String[] contactPoints = new String[hostSet.size()]; int i=0; for (String host : hostSet) { if(host.contains(":")) { contactPoints[i] = host.substring(0,host.indexOf(":")); } else { contactPoints[i] = host; } i+=1; } List<InetSocketAddress> contactPointAddresses = Arrays.stream(contactPoints) .map(host -> new InetSocketAddress(host, cassandraPort)) .collect(Collectors.toList()); DriverConfigLoader driverConfigLoader = DriverConfigLoader.programmaticBuilder() .withDuration(DefaultDriverOption.HEARTBEAT_INTERVAL, Duration.ofSeconds(60)) .withString(DefaultDriverOption.REQUEST_CONSISTENCY, ConsistencyLevel.QUORUM.name()) .withString(DefaultDriverOption.RETRY_POLICY_CLASS, "DefaultRetryPolicy") .withString(DefaultDriverOption.RECONNECTION_POLICY_CLASS, "ConstantReconnectionPolicy") .withDuration(DefaultDriverOption.RECONNECTION_BASE_DELAY, Duration.ofSeconds(env.getProperty("ea.cassandra.retryDownedHostsDelayInSeconds",Integer.class,1))) .withString(DefaultDriverOption.LOAD_BALANCING_POLICY_CLASS, "DcInferringLoadBalancingPolicy") .build(); cassandraSession = CqlSession.builder() .addContactPoints(contactPointAddresses) .withConfigLoader(driverConfigLoader) .withKeyspace(cassandraKeyspaceName) .build(); }
Example #5
Source File: CqlSessionCassandraConnectionFactory.java From embedded-cassandra with Apache License 2.0 | 4 votes |
private CqlSession createSession(Cassandra cassandra) { ProgrammaticDriverConfigLoaderBuilder driverBuilder = DriverConfigLoader.programmaticBuilder() .withDuration(DefaultDriverOption.REQUEST_TIMEOUT, Duration.ofSeconds(30)) .withDuration(DefaultDriverOption.CONNECTION_INIT_QUERY_TIMEOUT, Duration.ofSeconds(3)); String username = getUsername(); String password = getPassword(); if (username != null && password != null) { driverBuilder.withString(DefaultDriverOption.AUTH_PROVIDER_USER_NAME, username) .withString(DefaultDriverOption.AUTH_PROVIDER_PASSWORD, password) .withClass(DefaultDriverOption.AUTH_PROVIDER_CLASS, PlainTextAuthProvider.class); } if (isSslEnabled()) { driverBuilder.withBoolean(DefaultDriverOption.SSL_HOSTNAME_VALIDATION, isHostnameValidation()) .withClass(DefaultDriverOption.SSL_ENGINE_FACTORY_CLASS, DefaultSslEngineFactory.class); List<String> cipherSuites = getCipherSuites(); if (!cipherSuites.isEmpty()) { driverBuilder.withStringList(DefaultDriverOption.SSL_CIPHER_SUITES, new ArrayList<>(cipherSuites)); } Resource truststore = getTruststore(); if (truststore != null) { driverBuilder.withString(DefaultDriverOption.SSL_TRUSTSTORE_PATH, getPath(truststore).toString()); } String truststorePassword = getTruststorePassword(); if (truststorePassword != null) { driverBuilder.withString(DefaultDriverOption.SSL_TRUSTSTORE_PASSWORD, truststorePassword); } Resource keystore = getKeystore(); if (keystore != null) { driverBuilder.withString(DefaultDriverOption.SSL_KEYSTORE_PATH, getPath(keystore).toString()); } String keystorePassword = getKeystorePassword(); if (keystorePassword != null) { driverBuilder.withString(DefaultDriverOption.SSL_KEYSTORE_PASSWORD, keystorePassword); } } List<Consumer<? super ProgrammaticDriverConfigLoaderBuilder>> driverConfigLoaderBuilderCustomizers = getDriverConfigLoaderBuilderCustomizers(); driverConfigLoaderBuilderCustomizers.forEach(customizer -> customizer.accept(driverBuilder)); int port = cassandra.getPort(); int sslPort = cassandra.getSslPort(); InetSocketAddress contactPoint = new InetSocketAddress(cassandra.getAddress(), (isSslEnabled() && sslPort != -1) ? sslPort : port); CqlSessionBuilder sessionBuilder = CqlSession.builder().addContactPoint(contactPoint) .withConfigLoader(driverBuilder.build()); String localDataCenter = getLocalDataCenter(); if (localDataCenter != null) { sessionBuilder.withLocalDatacenter(localDataCenter); } List<TypeCodec<?>> typeCodecs = getTypeCodecs(); if (!typeCodecs.isEmpty()) { sessionBuilder.addTypeCodecs(typeCodecs.toArray(new TypeCodec[0])); } List<Consumer<? super CqlSessionBuilder>> sessionBuilderCustomizers = getSessionBuilderCustomizers(); sessionBuilderCustomizers.forEach(customizer -> customizer.accept(sessionBuilder)); return sessionBuilder.build(); }
Example #6
Source File: CQLStoreManager.java From grakn with GNU Affero General Public License v3.0 | 4 votes |
private CqlSession initialiseSession() throws PermanentBackendException { Configuration configuration = getStorageConfig(); List<InetSocketAddress> contactPoints; String[] hostnames = configuration.get(STORAGE_HOSTS); int port = configuration.has(STORAGE_PORT) ? configuration.get(STORAGE_PORT) : DEFAULT_PORT; try { contactPoints = Array.of(hostnames) .map(hostName -> hostName.split(":")) .map(array -> Tuple.of(array[0], array.length == 2 ? Integer.parseInt(array[1]) : port)) .map(tuple -> new InetSocketAddress(tuple._1, tuple._2)) .toJavaList(); } catch (SecurityException | ArrayIndexOutOfBoundsException | NumberFormatException e) { throw new PermanentBackendException("Error initialising cluster contact points", e); } CqlSessionBuilder builder = CqlSession.builder() .addContactPoints(contactPoints) .withLocalDatacenter(configuration.get(LOCAL_DATACENTER)); ProgrammaticDriverConfigLoaderBuilder configLoaderBuilder = DriverConfigLoader.programmaticBuilder(); configLoaderBuilder.withString(DefaultDriverOption.SESSION_NAME, configuration.get(SESSION_NAME)); configLoaderBuilder.withDuration(DefaultDriverOption.REQUEST_TIMEOUT, configuration.get(CONNECTION_TIMEOUT)); if (configuration.get(PROTOCOL_VERSION) != 0) { configLoaderBuilder.withInt(DefaultDriverOption.PROTOCOL_VERSION, configuration.get(PROTOCOL_VERSION)); } if (configuration.has(AUTH_USERNAME) && configuration.has(AUTH_PASSWORD)) { configLoaderBuilder .withClass(DefaultDriverOption.AUTH_PROVIDER_CLASS, PlainTextAuthProvider.class) .withString(DefaultDriverOption.AUTH_PROVIDER_USER_NAME, configuration.get(AUTH_USERNAME)) .withString(DefaultDriverOption.AUTH_PROVIDER_PASSWORD, configuration.get(AUTH_PASSWORD)); } if (configuration.get(SSL_ENABLED)) { configLoaderBuilder .withClass(DefaultDriverOption.SSL_ENGINE_FACTORY_CLASS, DefaultSslEngineFactory.class) .withString(DefaultDriverOption.SSL_TRUSTSTORE_PATH, configuration.get(SSL_TRUSTSTORE_LOCATION)) .withString(DefaultDriverOption.SSL_TRUSTSTORE_PASSWORD, configuration.get(SSL_TRUSTSTORE_PASSWORD)); } configLoaderBuilder.withInt(DefaultDriverOption.CONNECTION_POOL_LOCAL_SIZE, configuration.get(LOCAL_MAX_CONNECTIONS_PER_HOST)); configLoaderBuilder.withInt(DefaultDriverOption.CONNECTION_POOL_REMOTE_SIZE, configuration.get(REMOTE_MAX_CONNECTIONS_PER_HOST)); configLoaderBuilder.withInt(DefaultDriverOption.CONNECTION_MAX_REQUESTS, configuration.get(MAX_REQUESTS_PER_CONNECTION)); // Keep to 0 for the time being: https://groups.google.com/a/lists.datastax.com/forum/#!topic/java-driver-user/Bc0gQuOVVL0 // Ideally we want to batch all tables initialisations to happen together when opening a new keyspace configLoaderBuilder.withInt(DefaultDriverOption.METADATA_SCHEMA_WINDOW, 0); // The following sets the size of Netty ThreadPool executor used by Cassandra driver: // https://docs.datastax.com/en/developer/java-driver/4.0/manual/core/async/#threading-model configLoaderBuilder.withInt(DefaultDriverOption.NETTY_IO_SIZE, 0); // size of threadpool scales with number of available CPUs when set to 0 configLoaderBuilder.withInt(DefaultDriverOption.NETTY_ADMIN_SIZE, 0); // size of threadpool scales with number of available CPUs when set to 0 // Keep the following values to 0 so that when we close the session we don't have to wait for the // so called "quiet period", setting this to a different value will slow down Graph.close() configLoaderBuilder.withInt(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_QUIET_PERIOD, 0); configLoaderBuilder.withInt(DefaultDriverOption.NETTY_IO_SHUTDOWN_QUIET_PERIOD, 0); builder.withConfigLoader(configLoaderBuilder.build()); return builder.build(); }
Example #7
Source File: CassandraAppender.java From karaf-decanter with Apache License 2.0 | 4 votes |
void activate(Dictionary<String, Object> config) { this.config = config; String host = getValue(config, CASSANDRA_HOST_PROPERTY, CASSANDRA_HOST_DEFAULT); Integer port = Integer.parseInt(getValue(config, CASSANDRA_PORT_PROPERTY, CASSANDRA_PORT_DEFAULT)); this.keyspace = getValue(config, KEYSPACE_PROPERTY, KEYSPACE_DEFAULT); this.tableName = getValue(config, TABLE_PROPERTY, TABLE_DEFAULT); DriverConfigLoader loader = DriverConfigLoader.programmaticBuilder() .withStringList(DefaultDriverOption.CONTACT_POINTS, Arrays.asList(host + ":" + port)) .withString(DefaultDriverOption.PROTOCOL_VERSION, "V3") .withString(DefaultDriverOption.PROTOCOL_MAX_FRAME_LENGTH, "256 MB") .withString(DefaultDriverOption.SESSION_NAME, "decanter") .withString(DefaultDriverOption.SESSION_KEYSPACE, keyspace) .withString(DefaultDriverOption.CONFIG_RELOAD_INTERVAL, "0") .withString(DefaultDriverOption.CONNECTION_INIT_QUERY_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.CONNECTION_SET_KEYSPACE_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_INTERVAL, "200 milliseconds") .withString(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_TIMEOUT, "10 seconds") .withBoolean(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_WARN, true) .withInt(DefaultDriverOption.CONNECTION_POOL_LOCAL_SIZE, 1) .withInt(DefaultDriverOption.CONNECTION_POOL_REMOTE_SIZE, 1) .withInt(DefaultDriverOption.CONNECTION_MAX_REQUESTS, 1024) .withInt(DefaultDriverOption.CONNECTION_MAX_ORPHAN_REQUESTS, 24576) .withString(DefaultDriverOption.HEARTBEAT_INTERVAL, "30 seconds") .withString(DefaultDriverOption.HEARTBEAT_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.COALESCER_INTERVAL, "10 microseconds") .withInt(DefaultDriverOption.COALESCER_MAX_RUNS, 5) .withString(DefaultDriverOption.RECONNECTION_POLICY_CLASS, "ExponentialReconnectionPolicy") .withString(DefaultDriverOption.RECONNECTION_BASE_DELAY, "1 second") .withString(DefaultDriverOption.RECONNECTION_MAX_DELAY, "60 seconds") .withBoolean(DefaultDriverOption.RECONNECT_ON_INIT, true) .withString(DefaultDriverOption.LOAD_BALANCING_POLICY, "") .withString(DefaultDriverOption.LOAD_BALANCING_POLICY_CLASS, "DefaultLoadBalancingPolicy") .withString(DefaultDriverOption.RETRY_POLICY, "") .withString(DefaultDriverOption.RETRY_POLICY_CLASS, "DefaultRetryPolicy") .withString(DefaultDriverOption.SPECULATIVE_EXECUTION_POLICY, "") .withString(DefaultDriverOption.SPECULATIVE_EXECUTION_POLICY_CLASS, "NoSpeculativeExecutionPolicy") .withString(DefaultDriverOption.ADDRESS_TRANSLATOR_CLASS, "PassThroughAddressTranslator") .withString(DefaultDriverOption.METADATA_SCHEMA_CHANGE_LISTENER_CLASS, "NoopSchemaChangeListener") .withString(DefaultDriverOption.METADATA_NODE_STATE_LISTENER_CLASS, "NoopNodeStateListener") .withString(DefaultDriverOption.REQUEST_TRACKER_CLASS, "NoopRequestTracker") .withString(DefaultDriverOption.REQUEST_THROTTLER_CLASS, "PassThroughRequestThrottler") .withBoolean(DefaultDriverOption.REQUEST_DEFAULT_IDEMPOTENCE, false) .withString(DefaultDriverOption.REQUEST_CONSISTENCY, "LOCAL_ONE") .withInt(DefaultDriverOption.REQUEST_PAGE_SIZE, 5000) .withString(DefaultDriverOption.REQUEST_SERIAL_CONSISTENCY, "SERIAL") .withString(DefaultDriverOption.TIMESTAMP_GENERATOR_CLASS, "AtomicTimestampGenerator") .withBoolean(DefaultDriverOption.SOCKET_TCP_NODELAY, true) .withString(DefaultDriverOption.CONTROL_CONNECTION_TIMEOUT, "500 milliseconds") .withInt(DefaultDriverOption.NETTY_IO_SIZE, 0) .withInt(DefaultDriverOption.NETTY_IO_SHUTDOWN_QUIET_PERIOD, 2) .withInt(DefaultDriverOption.NETTY_IO_SHUTDOWN_TIMEOUT, 15) .withString(DefaultDriverOption.NETTY_IO_SHUTDOWN_UNIT, "SECONDS") .withInt(DefaultDriverOption.NETTY_ADMIN_SIZE, 2) .withInt(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_QUIET_PERIOD, 2) .withInt(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_TIMEOUT, 15) .withString(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_UNIT, "SECONDS") .withString(DefaultDriverOption.NETTY_TIMER_TICK_DURATION, "100 milliseconds") .withInt(DefaultDriverOption.NETTY_TIMER_TICKS_PER_WHEEL, 2048) .withBoolean(DefaultDriverOption.METADATA_SCHEMA_ENABLED, true) .withString(DefaultDriverOption.METADATA_SCHEMA_WINDOW, "1 second") .withInt(DefaultDriverOption.METADATA_SCHEMA_MAX_EVENTS, 20) .withString(DefaultDriverOption.METADATA_SCHEMA_REQUEST_TIMEOUT, "500 milliseconds") .withInt(DefaultDriverOption.METADATA_SCHEMA_REQUEST_PAGE_SIZE, 5000) .withBoolean(DefaultDriverOption.METADATA_TOKEN_MAP_ENABLED, true) .withString(DefaultDriverOption.METADATA_TOPOLOGY_WINDOW,"1 second") .withInt(DefaultDriverOption.METADATA_TOPOLOGY_MAX_EVENTS,20) .withStringList(DefaultDriverOption.METRICS_SESSION_ENABLED, new ArrayList<>()) .withStringList(DefaultDriverOption.METRICS_NODE_ENABLED, new ArrayList<>()) .withDuration(DefaultDriverOption.REQUEST_TIMEOUT, Duration.ofSeconds(5)) .build(); session = CqlSession.builder() .withClassLoader(CqlSession.class.getClassLoader()) .withConfigLoader(loader) .withLocalDatacenter("datacenter1").build(); useKeyspace(session, keyspace); createTable(session, keyspace, tableName); }
Example #8
Source File: CassandraAppenderTest.java From karaf-decanter with Apache License 2.0 | 4 votes |
private static CqlSession getSession() { DriverConfigLoader loader = DriverConfigLoader.programmaticBuilder() .withStringList(DefaultDriverOption.CONTACT_POINTS, Arrays.asList(CASSANDRA_HOST + ":" + CASSANDRA_PORT)) .withString(DefaultDriverOption.PROTOCOL_VERSION, "V3") .withString(DefaultDriverOption.PROTOCOL_MAX_FRAME_LENGTH, "256 MB") .withString(DefaultDriverOption.SESSION_NAME, "decanter") .withString(DefaultDriverOption.CONFIG_RELOAD_INTERVAL, "0") .withString(DefaultDriverOption.CONNECTION_INIT_QUERY_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.CONNECTION_SET_KEYSPACE_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_INTERVAL, "200 milliseconds") .withString(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_TIMEOUT, "10 seconds") .withBoolean(DefaultDriverOption.CONTROL_CONNECTION_AGREEMENT_WARN, true) .withInt(DefaultDriverOption.CONNECTION_POOL_LOCAL_SIZE, 1) .withInt(DefaultDriverOption.CONNECTION_POOL_REMOTE_SIZE, 1) .withInt(DefaultDriverOption.CONNECTION_MAX_REQUESTS, 1024) .withInt(DefaultDriverOption.CONNECTION_MAX_ORPHAN_REQUESTS, 24576) .withString(DefaultDriverOption.HEARTBEAT_INTERVAL, "30 seconds") .withString(DefaultDriverOption.HEARTBEAT_TIMEOUT, "500 milliseconds") .withString(DefaultDriverOption.COALESCER_INTERVAL, "10 microseconds") .withInt(DefaultDriverOption.COALESCER_MAX_RUNS, 5) .withString(DefaultDriverOption.RECONNECTION_POLICY_CLASS, "ExponentialReconnectionPolicy") .withString(DefaultDriverOption.RECONNECTION_BASE_DELAY, "1 second") .withString(DefaultDriverOption.RECONNECTION_MAX_DELAY, "60 seconds") .withBoolean(DefaultDriverOption.RECONNECT_ON_INIT, true) .withString(DefaultDriverOption.LOAD_BALANCING_POLICY, "") .withString(DefaultDriverOption.LOAD_BALANCING_POLICY_CLASS, "DefaultLoadBalancingPolicy") .withString(DefaultDriverOption.RETRY_POLICY, "") .withString(DefaultDriverOption.RETRY_POLICY_CLASS, "DefaultRetryPolicy") .withString(DefaultDriverOption.SPECULATIVE_EXECUTION_POLICY, "") .withString(DefaultDriverOption.SPECULATIVE_EXECUTION_POLICY_CLASS, "NoSpeculativeExecutionPolicy") .withString(DefaultDriverOption.ADDRESS_TRANSLATOR_CLASS, "PassThroughAddressTranslator") .withString(DefaultDriverOption.METADATA_SCHEMA_CHANGE_LISTENER_CLASS, "NoopSchemaChangeListener") .withString(DefaultDriverOption.METADATA_NODE_STATE_LISTENER_CLASS, "NoopNodeStateListener") .withString(DefaultDriverOption.REQUEST_TRACKER_CLASS, "NoopRequestTracker") .withString(DefaultDriverOption.REQUEST_THROTTLER_CLASS, "PassThroughRequestThrottler") .withBoolean(DefaultDriverOption.REQUEST_DEFAULT_IDEMPOTENCE, false) .withString(DefaultDriverOption.REQUEST_CONSISTENCY, "LOCAL_ONE") .withInt(DefaultDriverOption.REQUEST_PAGE_SIZE, 5000) .withString(DefaultDriverOption.REQUEST_SERIAL_CONSISTENCY, "SERIAL") .withString(DefaultDriverOption.TIMESTAMP_GENERATOR_CLASS, "AtomicTimestampGenerator") .withBoolean(DefaultDriverOption.SOCKET_TCP_NODELAY, true) .withString(DefaultDriverOption.CONTROL_CONNECTION_TIMEOUT, "500 milliseconds") .withInt(DefaultDriverOption.NETTY_IO_SIZE, 0) .withInt(DefaultDriverOption.NETTY_IO_SHUTDOWN_QUIET_PERIOD, 2) .withInt(DefaultDriverOption.NETTY_IO_SHUTDOWN_TIMEOUT, 15) .withString(DefaultDriverOption.NETTY_IO_SHUTDOWN_UNIT, "SECONDS") .withInt(DefaultDriverOption.NETTY_ADMIN_SIZE, 2) .withInt(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_QUIET_PERIOD, 2) .withInt(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_TIMEOUT, 15) .withString(DefaultDriverOption.NETTY_ADMIN_SHUTDOWN_UNIT, "SECONDS") .withString(DefaultDriverOption.NETTY_TIMER_TICK_DURATION, "100 milliseconds") .withInt(DefaultDriverOption.NETTY_TIMER_TICKS_PER_WHEEL, 2048) .withBoolean(DefaultDriverOption.METADATA_SCHEMA_ENABLED, true) .withString(DefaultDriverOption.METADATA_SCHEMA_WINDOW, "1 second") .withInt(DefaultDriverOption.METADATA_SCHEMA_MAX_EVENTS, 20) .withString(DefaultDriverOption.METADATA_SCHEMA_REQUEST_TIMEOUT, "500 milliseconds") .withInt(DefaultDriverOption.METADATA_SCHEMA_REQUEST_PAGE_SIZE, 5000) .withBoolean(DefaultDriverOption.METADATA_TOKEN_MAP_ENABLED, true) .withString(DefaultDriverOption.METADATA_TOPOLOGY_WINDOW,"1 second") .withInt(DefaultDriverOption.METADATA_TOPOLOGY_MAX_EVENTS,20) .withStringList(DefaultDriverOption.METRICS_SESSION_ENABLED, new ArrayList<>()) .withStringList(DefaultDriverOption.METRICS_NODE_ENABLED, new ArrayList<>()) .withDuration(DefaultDriverOption.REQUEST_TIMEOUT, Duration.ofSeconds(5)) .build(); return CqlSession.builder() .withClassLoader(CqlSession.class.getClassLoader()) .withConfigLoader(loader) .withLocalDatacenter("datacenter1").build(); }