Changing controller log levels
<logger name="ch.qos.logback" level="WARN"/>
<logger name="org.apache.helix" level="WARN"/>
+ <logger name="org.apache.helix.manager.zk" level="WARN"/>
<logger name="org.apache.zookeeper" level="ERROR"/>
<logger name="org.apache.airavata" level="INFO"/>
<logger name="org.hibernate" level="ERROR"/>
