HelloWorldExample prpoblem

[j lu]

Forks, I am not sure this is the right place to say this. I am just started
playing with apache twill. When I try to run the hello world example. It
apears to be working. There is a HelloWorldRunnable application appearing
successful in the yarn webUI. But I couldnt find the INFO msg says Hello
World, this is my first distrubuted application. I tried the logs in the
yarn webUI. I also tried $(HADOOP_HOME)/logs no luck. Any help?