HDFS is a Java-based file system that provides scalable and reliable data storage, and it was designed to span large clusters of commodity servers. HDFS has demonstrated production scalability of up to 200 PB of storage and a single cluster of 4500 servers, supporting close to a billion files and blocks.
MemSQL is a distributed, in-memory data warehouse that lets you process transactions and run analytics in real-time, using SQL. Download now and see how it works.