Hikari default maximum pool size. minimum-idle: This property sets the minimum number of idle connections that should be maintained in the connection pool. properties file. idle-timeout: Sets the maximum amount of time that a connection remains idle in the pool. spring. properties file as below. Jan 21, 2025 · MaximumPoolSize maximum-pool-size defines the maximum number of connections that can exist in the connection pool, whether they are active (currently in use) or idle (available in the pool). Jan 20, 2025 · Avoid setting it equal to maximum-pool-size unless your application constantly needs the full pool capacity. If connections are expensive to create, a higher value may improve performance. maximum-pool-size: This property sets the maximum number of connections that can be created in the connection pool. b) connection-timeout → defines the maximum time application is willing to wait for a datasource. Jan 31, 2025 · Default values such as connection timeout, maximum pool size, and idle timeout are applied unless overridden. hikari. The connection pool is initialized with the minimum number of idle connections to . e. HikariCP aims to provide a balance between performance and resource utilization, which is why the defaults suit most applications. Learn the steps to use Hikari data source with both Spring Boot 1 and Spring Boot 2. Mar 6, 2019 · What is the default connection pool size that Spring Boot HikariCP provides when the container loads? Of course, I am using below properties to setup max CP size, but I was wondering what is the default CP size if we don't give any number in the application. maximum-pool-size=15. Apr 3, 2022 · spring. Sep 15, 2023 · To change default pool size, configure maximum-pool-size in application. Default maximum pool size in HikariCP is set to 10 if not explicitly defined in the configuration file. The value of this property controls the minimum number of connections that should always be maintained in the connection pool. Dec 16, 2023 · a) maximum-pool-size → sets the maximum number of connections that can be held in the connection pool. This setting only applies when minimum-idle is less than maximum-pool-size. : the maximum pool size is 10. Thanks. Apr 16, 2019 · A step-by-step guide to configure #Hikari with #SpringBoot. May 11, 2024 · The default value is 10, i. See full list on baeldung. For example, systems with a mix of long running transactions and very short transactions are generally the most difficult to tune with any connection pool. com Dec 6, 2021 · Pool sizing is ultimately very specific to deployments. datasource. bvegyhl rrekp fjc jth wwzfi avrhce zihlx rbopll qibhyr esitn