I have created simple Pig UDF in java on Hortonworks Sandbox and trying to log the message.It's not showing any log messages in stdout.

[#1]

public class TestUdf extends EvalFunc<String>{

@Override public String exec(Tuple input) throws IOException

{

log.info("My message*********************");

String inputData = (String)input.get(0);

return inputData;

}

}

Please check my pig log Properties file in screenshot which is being used by my pig script as shown below.

REGISTER hdfs:///user/maria_dev/test.jar;
aa = LOAD 'mydoc' USING PigStorage('\t') as (email: chararray) ;
finaloutput =FOREACH aa GENERATE  test.TestUdf(email)  as email;
dump finaloutput;

[#2]

Seems like you are adding these properties directly in the pig properties. Have you tried configuring the actual log4j.properties file that pig uses (I believe under /etc/pig/conf)?

[#3]

I am adding pig log4j.properties from ambari gui .Thanks