Java – how to disable info logging in HBase client applications?

I'm writing a Java console application to access HBase, and I can't figure out how to get rid of all annoying info messages:

13/05/24 11:01:12 INFO zookeeper.ZooKeeper: Client environment:zookeeper.version=3.4.5-1392090,built on 09/30/2012 17:52 GMT
13/05/24 11:01:12 INFO zookeeper.ZooKeeper: Client environment:host.name=10.1.0.110
13/05/24 11:01:12 INFO zookeeper.ZooKeeper: Client environment:java.version=1.7.0_15
13/05/24 11:01:12 INFO zookeeper.ZooKeeper: Client environment:java.vendor=Oracle Corporation
13/05/24 11:01:12 INFO zookeeper.ZooKeeper: Client environment:java.home=/Library/Java/JavaVirtualMachines/jdk1.7.0_15.jdk/Contents/Home/jre

Wait

I've tried several different things from the client code itself, but none of the obvious methods worked for me

This is an example that doesn't work:

Logger log = Logger.getLogger("log4j.logger.org.apache.zookeeper");
log.setLevel(Level.WARN);

Solution

You can delete packages one by one, for example:

Logger.getLogger("org.apache.zookeeper").setLevel(Level.WARN);
Logger.getLogger("org.apache.hadoop.hbase.zookeeper").setLevel(Level.WARN);
Logger.getLogger("org.apache.hadoop.hbase.client").setLevel(Level.WARN);

Or simply manipulate the rootlogger:

Logger.getRootLogger().setLevel(Level.WARN);

Note: at HBase 0.94 Test on 5