2023-06-03 22:29:03 +00:00
|
|
|
# Cassandra
|
|
|
|
|
|
|
|
|
|
>[Cassandra](https://en.wikipedia.org/wiki/Apache_Cassandra) 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-drive
|
|
|
|
|
```
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
## Memory
|
|
|
|
|
|
2023-06-16 18:52:56 +00:00
|
|
|
See a [usage example](/docs/modules/memory/integrations/cassandra_chat_message_history.html).
|
2023-06-03 22:29:03 +00:00
|
|
|
|
|
|
|
|
```python
|
|
|
|
|
from langchain.memory import CassandraChatMessageHistory
|
|
|
|
|
```
|
