langchain/docs/extras/integrations/providers/cassandra.mdx
2023-07-23 23:23:16 -07:00

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# Cassandra
>[Apache Cassandra®](https://cassandra.apache.org/) is a free and open-source, distributed, wide-column
> store, NoSQL database management system designed to handle large amounts of data across many commodity servers,
> providing high availability with no single point of failure. Cassandra offers support for clusters spanning
> multiple datacenters, with asynchronous masterless replication allowing low latency operations for all clients.
> Cassandra was designed to implement a combination of _Amazon's Dynamo_ distributed storage and replication
> techniques combined with _Google's Bigtable_ data and storage engine model.
## Installation and Setup
```bash
pip install cassandra-driver
pip install cassio
```
## Vector Store
See a [usage example](/docs/modules/data_connection/vectorstores/integrations/cassandra.html).
```python
from langchain.memory import CassandraChatMessageHistory
```
## Memory
See a [usage example](/docs/modules/memory/integrations/cassandra_chat_message_history.html).
```python
from langchain.memory import CassandraChatMessageHistory
```