How to enable verbose log for Oozie launcher

[#1]

Perform following steps to enable the verbose log for Oozie launcher

Step 1.Add below property to the action configuration section in the workflow file:

<configuration>
.....
<property> 
<name>oozie.launcher.mapreduce.map.java.opts</name> 
<value>-verbose</value> 
</property> 
</configuration>

Step 2.Upload the updated workflow file to workflow folder defined by oozie.wf.application.path in job property file

Step 3.Submit the workflow and now you should be able to see verbose log for the Oozie launcher such as class loading information .

[Loaded java.lang.ExceptionInInitializerError from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded org.apache.commons.logging.impl.LogFactoryImpl$2 from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar]
[Loaded org.apache.commons.logging.impl.LogFactoryImpl$1 from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar]
[Loaded org.apache.commons.logging.Log from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar]
[Loaded org.apache.commons.logging.impl.Log4JLogger from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/common/lib/commons-logging-1.1.3.jar]
[Loaded org.apache.log4j.spi.AppenderAttachable from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded org.apache.log4j.Category from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded org.apache.log4j.Logger from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded org.apache.log4j.Priority from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded org.apache.log4j.Level from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded java.lang.InstantiationError from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded sun.reflect.UnsafeFieldAccessorFactory from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded sun.reflect.UnsafeQualifiedStaticFieldAccessorImpl from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded sun.reflect.UnsafeQualifiedStaticObjectFieldAccessorImpl from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded java.util.HashMap$EntrySet from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded java.util.HashMap$HashIterator from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded java.util.HashMap$EntryIterator from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded java.util.MissingResourceException from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]
[Loaded org.apache.log4j.LogManager from file:/hadoop/yarn/local/filecache/11/mapreduce.tar.gz/hadoop/share/hadoop/mapreduce/lib/log4j-1.2.17.jar]
[Loaded java.net.MalformedURLException from /usr/jdk64/jdk1.8.0_60/jre/lib/rt.jar]