Item 86: How to Customize HikariCP Settings
Spring Boot relies on HikariCP as the default connection pool.
Adding in your project spring-boot-starter-jdbc or spring-boot-starter-data-jpa "starters" will automatically add a dependency to HikariCP with the default settings.
It’s important to know how to alter the configuration of your connection pool. Most of the time, the default settings don’t satisfy the production requirements. The best way to tune the connection pool parameters for production is using FlexyPool1 by Vlad Mihalcea. FlexyPool can determine ...