Redisql is a lightweight SQL server AND Redisql is built on top of the NOSQL datastore redis, supports redis data-structures and redis commands and supports (de)normalisation of these data structures (lists,sets,hash-tables) to/from SQL tables. Redisql can also easily import/export tables to/from Mysql for Data-warehousing. Redisql is not only a data storage Swiss Army Knife, it is also extremely fast and extremely memory efficient.

Speed is achieved by being an event driven network server that stores ALL data in RAM and achieves disk persistence by using a spare cpu-core to periodically log data changes (i.e. no threads, no locks, no undo-logs, serving data over a network at RAM speed) Storage data structures w/ very low memory overhead and data compression, via algorithms w/ insignificant performance hits, greatly increase the amount of data you can fit in RAM Your hard disk's swap is utilised when your data can no longer fit in RAM. In this mode, performance is not negatively effected, if rarely-used data sits idle in swap. Redisql can use 100% of your RAM for storage and still provide disk persistence. Optimising to the SQL statements most commonly used in OLTP workloads yields a lightweight SQL server designed for low latency at high concurrency (i.e. mindblowing speed).

Hibari is a distributed, non-relational database management system (distributed non-RDBMS) based on distributed key value store technology, implemented by Gemini Mobile Technologies, it inherits important characteristics of both the distributed non-RDBMS world and of Gemini's HyperScale® Platform.

Hibari has the following characteristics to flexibly support growing volumes of data in cloud computing space. Economic system build-up using commodity hardware Flexible, high scalability High performance and availability by consistent hashing across multiple machines High fault-tolerance by chain replication across multiple machines Safety without a single point of failure (SPOF)