mirror of
https://github.com/hwchase17/langchain
synced 2024-10-29 17:07:25 +00:00
24 lines
902 B
Markdown
24 lines
902 B
Markdown
|
# 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
|
||
|
|
|
||
|
|
See a [usage example](../modules/memory/examples/cassandra_chat_message_history.ipynb).
|
||
|
|
|
||
|
|
```python
|
||
|
|
from langchain.memory import CassandraChatMessageHistory
|
||
|
|
```
|