Storage

All events can be stored in four different storage types:

• Cassandra,
• Riak,
• Redis,
• Any RDBMS supported by SqlAlchemy.

Cassandra

"The Apache Cassandra database is the right choice when you need scalability and high availability without compromising performance. Linear scalability and proven fault-tolerance on commodity hardware or cloud infrastructure make it the perfect platform for mission-critical data.Cassandra's support for replicating across multiple datacenters is best-in-class, providing lower latency for your users and the peace of mind of knowing that you can survive regional outages."

Riak KV

Riak KV with LevelDB backend.

"Riak KV is a distributed NoSQL key-value database with advanced local and multi-cluster replication that guarantees reads and writes even in the event of hardware failures or network partitions."

Redis

"Redis is an open source (BSD licensed), in-memory data structure store, used as a database, cache and message broker. It supports data structures such as strings, hashes, lists, sets, sorted sets with range queries, bitmaps, hyperloglogs and geospatial indexes with radius queries. Redis has built-in replication, Lua scripting, LRU eviction, transactions and different levels of on-disk persistence, and provides high availability via Redis Sentinel and automatic partitioning with Redis Cluster."

SqlAlchemy

The following dialects are supports out-of-the-box by SqlAlchemy:

• Firebird,
• Microsoft SQL Server,
• MySQL,
• Oracle,
• PostgreSQL,
• SQLite,
• Sybase.

External production ready dialects:

• IBM DB2,
• Amazon Redshift,
• EXASolution,
• SAP Sybase SQL Anywhere,
• MonetDB,
• Snowflake,
• CrateDB.