How do I set the logging level for HikariCP?

Question

Currently, HikariCP is logging at level INFO and I want to set it to SEVERE . When I try to set the level on the parent logger (the only reference to logging I can find) it throws the error:

dataSource.getParentLogger().setLevel( Level.SEVERE );

The error:

Caused by: java.sql.SQLFeatureNotSupportedException
    at com.zaxxer.hikari.HikariDataSource.getParentLogger(HikariDataSource.java:176)

How do I properly set the logging level?

Answer 1

HikariCP uses slf4j under the hood. You will have to set the log level on your actual logger implementation ( logback , log4j , JUL , ...).

Also, slf4j provides a very simple logger implementation slf4j-simple . Just add the dependency to your pom

<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>slf4j-simple</artifactId>
    <version>1.7.5</version>
</dependency>

You can then configure it using system properties , eg

java -Dorg.slf4j.simpleLogger.log.com.zaxxer.hikari=error ...

Answer 2

Another way to programmatically set log level

import org.slf4j.LoggerFactory;
import ch.qos.logback.classic.Level;

ch.qos.logback.classic.Logger hikariLogger = (ch.qos.logback.classic.Logger) LoggerFactory.getLogger("com.zaxxer.hikari");
hikariLogger.setLevel(Level.ERROR);

Answer 3

Remove theese jars from your classpath or lib directory if you have.

logback-classic.jar logback-core.jar