• Proven
    Cassandra is in use at Netflix, Twitter, Urban Airship, Constant Contact, Reddit, Cisco, OpenX, Digg, CloudKick, Ooyala, and more companies that have large, active data sets. The largest known Cassandra cluster has over 300 TB of data in over 400 machines.
  • Fault Tolerant
    Data is automatically replicated to multiple nodes for fault-tolerance. Replication across multiple data centers is supported. Failed nodes can be replaced with no downtime.
  • Decentralized
    There are no single points of failure. There are no network bottlenecks. Every node in the cluster is identical.
  • You’re in Control
    Choose between synchronous or asynchronous replication for each update. Highly available asynchronus operations are optimized with features like Hinted Handoffand Read Repair.
  • Rich Data Mode
    Allows efficient use for many applications beyond simple key/value.
  • Elastic
    Read and write throughput both increase linearly as new machines are added, with no downtime or interruption to applications.
  • Durable
    Cassandra is suitable for applications that can’t afford to lose data, even when an entire data center goes down.
  • Professionally Supported
    Cassandra support contracts and services are available from third parties.



Globals is a Fast, Proven, Simple, Flexible, NoSQL Database from InterSystems that is FREE for everyone. At its core, the Globals database is powered by an extremely efficient multidimensional data engine. The exposed interface supports access to the multidimensional structures – providing the highest performance and greatest range of storage possibilities.



Riak is a Dynamo-inspired database that is being used in production by companies like Mozilla and Comcast. Riak scales predictably and easily and simplifies development by giving users the ability to quickly prototype, test, and deploy their applications.