HyperDex: A High Performance, Searchable Key-Value Store

rescrv writes: Researchers at Cornell have built a new high performance key-value store called HyperDex which supports efficient search operations. HyperDex uses a careful object placement strategy, called hyperspace hashing, such that the key-value store can retrieve objects not just by the primary key, but any of the object's secondary attributes as well. Hyperspace hashing ensures that both search and key-based operations contact a small subset of all servers in the system. Performance results show that the system is a factor of 2-13 times faster than Cassandra and MongoDB.