Database connection pooling is essential for high-performance applications. HikariCP is one of the fastest and most reliable connection pooling libraries.

Configuration

spring.datasource.hikari.maximum-pool-size=10
spring.datasource.hikari.minimum-idle=5
spring.datasource.hikari.connection-timeout=30000
spring.datasource.hikari.idle-timeout=600000
spring.datasource.hikari.max-lifetime=1800000

Benefits

• Faster performance
• Resource efficiency
• Connection validation and recovery
• Configurable pool sizes

Best Practices

• Set appropriate pool size based on your workload
• Monitor pool metrics
• Use connection validation
• Configure proper timeouts

Proper connection pooling configuration can significantly improve your application’s performance.