Apache ShardingSphere including 2 independent products: ShardingSphere-JDBC & ShardingSphere-Proxy. They all provide functions of data scale-out, distributed transaction and distributed governance, applicable in a variety of situations such as Java isomorphism, heterogeneous language and Cloud-Native.
As the first product and the predecessor of Apache ShardingSphere, ShardingSphere-JDBC defines itself as a lightweight Java framework that provides extra service at Java JDBC layer. With the client end connecting directly to the database, it provides service in the form of jar and requires no extra deployment and dependence. It can be considered as an enhanced JDBC driver, which is fully compatible with JDBC and all kinds of ORM frameworks.
| ShardingSphere-JDBC | ShardingSphere-Proxy | |
|---|---|---|
| Database | Any |
MySQL/PostgreSQL |
| Connections Count Cost | More |
Less |
| Supported Languages | Java Only |
Any |
| Performance | Low loss |
Relatively High loss |
| Decentralization | Yes |
No |
| Static Entry | No |
Yes |
ShardingSphere-JDBC is suitable for java application.
Source Codes: https://github.com/apache/shardingsphere/tree/master/shardingsphere-jdbc
ShardingSphere-Proxy is the second product of Apache ShardingSphere. It defines itself as a transparent database proxy, providing a database server that encapsulates database binary protocol to support heterogeneous languages. Currently, MySQL and PostgreSQL (compatible with PostgreSQL-based databases, such as openGauss) versions are provided. It can use any kind of terminal (such as MySQL Command Client, MySQL Workbench, etc.) that is compatible with MySQL or PostgreSQL protocol to operate data, which is friendlier to DBAs
| ShardingSphere-JDBC | ShardingSphere-Proxy | |
|---|---|---|
| Database | Any | MySQL/PostgreSQL |
| Connections Count Cost | High | Low |
| Supported Languages | Java Only | Any |
| Performance | Low loss | Relatively high loss |
| Decentralization | Yes | No |
| Static Entry | No | Yes |
The advantages of ShardingSphere-Proxy lie in supporting heterogeneous languages and providing operational entries for DBA.
Source Codes: https://github.com/apache/shardingsphere/tree/master/shardingsphere-proxy
ShardingSphere-JDBC adopts a decentralized architecture, applicable to high-performance light-weight OLTP application developed with Java. ShardingSphere-Proxy provides static entry and all languages support, applicable for OLAP application and the sharding databases management and operation situation.
ShardingSphere is an ecosystem consisting of multiple endpoints together. Through a mixed use of ShardingSphere-JDBC and ShardingSphere-Proxy and a unified sharding strategy by the same registry center, ShardingSphere can build an application system that is applicable to all kinds of scenarios. Architects can adjust the system architecture to the most applicable one to their needs to conduct business more freely.
