---
id: cassandra
title: "Apache Cassandra"
---

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To use this Apache Druid extension, make sure to [include](../../development/extensions.md#loading-extensions) `druid-cassandra-storage` extension.

[Apache Cassandra](http://www.datastax.com/what-we-offer/products-services/datastax-enterprise/apache-cassandra) can also
be leveraged for deep storage.  This requires some additional Druid configuration as well as setting up the necessary
schema within a Cassandra keystore.