TitanGraph

public TitanGraph graph() {
        BaseConfiguration conf = new BaseConfiguration();

        conf.setProperty("storage.batch-loading", true);
        conf.setProperty("schema.default", "none");

        conf.setProperty("gremlin.graph", "com.thinkaurelius.titan.core.TitanFactory");
        conf.setProperty("ids.block-size", 1000000);
        conf.setProperty("storage.setup-wait", 60000);

        conf.setProperty("storage.buffer-size", 10024);
        conf.setProperty("storage.write-time", "1 ms");
        conf.setProperty("storage.read-time", "1 ms");

        conf.setProperty("storage.backend", "com.amazon.titan.diskstorage.dynamodb.DynamoDBStoreManager");
        conf.setProperty("storage.dynamodb.client.credentials.constructor-args", "");
        
        conf.setProperty("storage.dynamodb.client.endpoint", "https://dynamodb.ap-southeast-1.amazonaws.com");
        conf.setProperty("storage.dynamodb.client.signing-region", "ap-southeast-1");

        conf.setProperty("storage.dynamodb.client.credentials.class-name", "com.amazonaws.auth.DefaultAWSCredentialsProviderChain");
        conf.setProperty("storage.dynamodb.force-consistent-read", true);

        //!!Database Prefix
        conf.setProperty("storage.dynamodb.prefix", "g_v7");


        //max http connections - not recommended to use more than 250 connections in DynamoDB Local
        conf.setProperty("storage.dynamodb.client.connection-max", 200);

        conf.setProperty("storage.dynamodb.metrics-prefix", "d");
        conf.setProperty("storage.dynamodb.enable-parallel-scans", false);

        conf.setProperty("storage.dynamodb.max-self-throttled-retries", 60);
        conf.setProperty("storage.dynamodb.control-plane-rate", 10);
        //turn off sdk retries
        conf.setProperty("storage.dynamodb.client.retry-error-max", 0);

        //DynamoDB client configuration: thread pool
        conf.setProperty("storage.dynamodb.client.executor.core-pool-size", 200);
        //Do not need more threads in thread pool than the number of http connections
        conf.setProperty("storage.dynamodb.client.executor.max-pool-size", 200);
        conf.setProperty("storage.dynamodb.client.executor.keep-alive", 60000);


        conf.setProperty("storage.dynamodb.client.executor.max-concurrent-operations", 1);

        conf.setProperty("storage.dynamodb.client.executor.max-queue-length", 1024);

        conf.setProperty("storage.dynamodb.stores.edgestore.capacity-read", 10_000);
        conf.setProperty("storage.dynamodb.stores.edgestore.capacity-write", 10_000);
        conf.setProperty("storage.dynamodb.stores.edgestore.read-rate", 10_000);
        conf.setProperty("storage.dynamodb.stores.edgestore.write-rate", 10_000);

        conf.setProperty("storage.dynamodb.stores.graphindex.capacity-read", 4_000);
        conf.setProperty("storage.dynamodb.stores.graphindex.capacity-write", 2_000);
        conf.setProperty("storage.dynamodb.stores.graphindex.read-rate", 4_000);
        conf.setProperty("storage.dynamodb.stores.graphindex.write-rate", 2_000);

        conf.setProperty("storage.dynamodb.stores.systemlog.capacity-read", 50);
        conf.setProperty("storage.dynamodb.stores.systemlog.capacity-write", 10);
        conf.setProperty("storage.dynamodb.stores.systemlog.read-rate", 50);
        conf.setProperty("storage.dynamodb.stores.systemlog.write-rate", 10);

        conf.setProperty("storage.dynamodb.stores.titan_ids.capacity-read", 50);
        conf.setProperty("storage.dynamodb.stores.titan_ids.capacity-write", 50);
        conf.setProperty("storage.dynamodb.stores.titan_ids.read-rate", 50);
        conf.setProperty("storage.dynamodb.stores.titan_ids.write-rate", 50);

        conf.setProperty("storage.dynamodb.stores.system_properties.capacity-read", 50);
        conf.setProperty("storage.dynamodb.stores.system_properties.capacity-write", 10);
        conf.setProperty("storage.dynamodb.stores.system_properties.read-rate", 50);
        conf.setProperty("storage.dynamodb.stores.system_properties.write-rate", 10);

        conf.setProperty("storage.dynamodb.stores.txlog.capacity-read", 50);
        conf.setProperty("storage.dynamodb.stores.txlog.capacity-write", 10);
        conf.setProperty("storage.dynamodb.stores.txlog.read-rate", 50);
        conf.setProperty("storage.dynamodb.stores.txlog.write-rate", 10);

        TitanGraph graph = TitanFactory.open(conf);
        return graph;
    }