V2EX connection pool

Connection Pool

定义 Definition

connection pool连接池。在软件系统中预先创建并维护一组可复用的数据库/网络连接;应用需要时从池中“借用”连接,用完再“归还”,以减少频繁建立与关闭连接的开销,并提升并发性能与稳定性。(也常见于数据库、HTTP 客户端、消息系统等场景。)

发音 Pronunciation

/ knkn pul /

例句 Examples

The app uses a connection pool to speed up database queries.
这个应用使用连接池来加快数据库查询。

Under heavy traffic, tuning the connection pool size can reduce latency and prevent timeouts.
在高流量压力下,调整连接池大小可以降低延迟并防止超时。

词源 Etymology

connection 来自拉丁语 connectere(把……连接在一起),由 *con-*(一起)+ nectere(绑、连)构成;pool 原指“水池、汇集处”,引申为“共享的资源集合”。合起来 connection pool 就是“集中存放并共享的连接资源”。

相关词 Related Words

文学与著作 Literary Works

  • Designing Data-Intensive Applications(Martin Kleppmann)中讨论数据库客户端与服务端交互时的连接管理与连接池实践
  • High Performance MySQL(Baron Schwartz 等)中涉及 MySQL 连接开销、连接复用与连接池/线程池相关调优
  • Java Concurrency in Practice(Brian Goetz 等)常以资源池(包括连接池)作为并发环境下的共享资源管理示例
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