YCSB is a framework for benchmarking systems. By itself, it is not particularly useful; only when you add code to interface with a data serving system is it useful. Each YCSB release contains code to interface with various DB bindings, here are some examples: Accumulo Cassandra Couchbase DynamoDB ElasticSearch HBase HyperTable Infinispan JDBC MongoDB OrientDB Redis Tarantool Refer to the release n