JDBC Logging

HikariCP does not inherently include JDBC logging at this time. This is a conscious decision, not an oversight or undeveloped future roadmap item. Nearly all major database have a JDBC driver capable of logging on its own.

This wiki page documents how to enable logging for common databases.

MySQL Connector/J

Example:

jdbcUrl=jdbc:mysql://localhost:3306/simpsons
dataSource.logger=com.mysql.jdbc.log.StandardLogger
dataSource.logSlowQueries=true
dataSource.dumpQueriesOnException=true

A full list of properties is available in the Debugging/Profiling section of the MySQL documentation.