�→ tomcat.TomcatWebServer : Tomcat initialized with port(s): 8080 (http) 2023-01-05T14:06:54.833+08:00 INFO 22005 --- [ main] o.apache.catalina. �→ core.StandardService : Starting service [Tomcat] 166 �→ core.StandardEngine : Starting Servlet engine: [Apache Tomcat/10.1.4] 2023-01-05T14:06:54.865+08:00 INFO 22005 --- [ main] o.a.c.c.C.[Tomcat �→ ].[localhost].[/] : Initializing Spring embedded �→ warning 2023-01-05T14:06:55.710+08:00 INFO 22005 --- [ main] o.s.b.w.embedded. 167 �→ tomcat.TomcatWebServer : Tomcat started on port(s): 8080 (http) with �→ context path '' 2023-01-05T14:06:55.714+08:00

interfaces. 2023-01-05T14:06:54.830+08:00 INFO 22005 --- [ main] o.s.b.w.embedded.tomcat. �→ TomcatWebServer : Tomcat initialized with port(s): 8080 (http) 125 2023-01-05T14:06:54.833+08:00 INFO 22005 StandardService : Starting service [Tomcat] 2023-01-05T14:06:54.833+08:00 INFO 22005 --- [ main] o.apache.catalina.core. �→ StandardEngine : Starting Servlet engine: [Apache Tomcat/10.1.4] 2023-01-05T14:06:54 2023-01-05T14:06:54.865+08:00 INFO 22005 --- [ main] o.a.c.c.C.[Tomcat].[localhost �→ ].[/] : Initializing Spring embedded WebApplicationContext 2023-01-05T14:06:54.865+08:00 INFO 22005 --- [ main] w.s.c. �→ Servle

to the connection pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, durid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

to the connection pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

to the connection pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

to the connection pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, druid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, durid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

the connec- tion pool for reuse. Java has many connection pool implementations such as HikariCP, tomcat-jdbc, durid, c3p0, and dbcp. TiDB does not limit which connection pool you use, so you can choose

OLTP 来讲），除了建立 TCP 连接外还需要进行连接鉴权操 作，所以客户端通常会把 TiDB (MySQL) 连接保存到连接池中进行复用。 Java 的连接池实现很多 (HikariCP, tomcat-jdbc, druid, c3p0, dbcp)，TiDB 不会限定使用的连接池，应用可以根据业务 特点自行选择连接池实现。 4.4.4.1.1 连接数配置 比较常见的是应用需要根据自身情况配置合适的连接池大小，以 连接建立是比较昂贵的操作（至少对于 OLTP），除了建立 TCP 连接外还需要进行连接鉴权操作，所 以客户端通常会把 TiDB (MySQL) 连接保存到连接池中进行复用。 Java 的连接池实现很多 (HikariCP, tomcat-jdbc, druid, c3p0, dbcp)，TiDB 不会限定使用的连接池，应用可以根据业务 特点自行选择连接池实现。 12.5.2.3.1 连接数配置 比较常见的是应用需要根据自身情况配置合适的连接池大小，以