Doris A large scale distributed KV storage system Release date: 2013/5/21 Doris is one of Alibaba technology products Doris's Features Scalable like HBase. Support large scale data storage and visit with scalable server deployment. High available than HBase. Neither lost data nor reject app's access when any server is crashed. High performance. Less 4 ms for commonly data access. Easy operation. Auto failover and data recover when server is crashed. Easy add servers to Doris cluster with web interface. Optimized consistence hash algorithm. More balance on distributed data than traditional consistence hash algorithm.