Included storage engines
In addition to the storage engines present in MySQL, MariaDB also includes the following storage engines:
Aria, which is a crash-safe alternative to the MyISAM engine
XtraDB, which is a drop-in replacement for the InnoDB engine
FederatedX, which is a drop-in replacement for the Federated engine
OQGRAPH, which is used to store complex graphs and tree structures
SphinxSE, which is used for full-text searches
TokuDB, which provides increased compression and better performance, particularly adapted to write-intensive environments
Cassandra, which allows access to data that are in a Cassandra cluster from MariaDB
CONNECT, which allows access to external data in different formats
SEQUENCE, which is used to generate sequences of numbers
Spider, which allows the set up of clustering and sharding between several MariaDB servers
