Ardb
A redis protocol compatible nosql, it support multiple storage engines
...Multi storage engines supported. RocksDB, LevelDB, LMDB, WiredTiger, PerconaFT, ForestDB. Multi data structure types supported, String, List, Set, Sorted Set, Hash, Bitmap(String), HyperLogLog(String), 2D Spatial Index(Sorted Set), Stream. Replication compatible with Redis 2.6/2.8. Ardb instance work as slave of Redis 2.6/2.8+ instance. Arab instance work as master of Redis 2.6/2.8+ instance. Ardb instance work as slave of Ardb instance. Auto failover support by redis-sentinel. Lua Scripting support. ...