What are the characteristics of a MySQL cluster?

Characteristics of MySQL Cluster include:

1. High availability: MySQL Cluster achieves high availability through data sharding and automatic failover, ensuring that data remains accessible even if nodes experience failures.
2. MySQL Cluster improves read and write performance by using in-memory data access and parallel queries, allowing it to handle high levels of concurrent requests.
3. Automatic Scaling: MySQL Cluster supports dynamic scaling of clusters, allowing for the addition of nodes and data shards as needed to improve system capacity and performance.
4. Persistent storage: MySQL Cluster allows data to be stored on disk to prevent data loss in the event of node failure.
5. Data consistency: MySQL Cluster utilizes multi-master replication technology to ensure data consistency across all nodes, automatically synchronizing data when a node joins or leaves the cluster.
6. Distributed architecture: MySQL Cluster adopts a distributed architecture, which allows data to be distributed across multiple nodes, thereby improving system performance and scalability.
7. Parallel processing: MySQL Cluster supports parallel querying and transaction processing, allowing multiple requests to be processed simultaneously, thereby increasing system throughput and performance.
8. Open source software: MySQL Cluster is open source with strong community support and extensive functionality extensions.

In conclusion, MySQL Cluster is a high availability, high performance, and scalable distributed database solution, suitable for scenarios requiring processing of large-scale data and high concurrent requests.