HBase connection in mapreduce running from Oozie workflow fails - mapreduce

Question

I am running my mapreduce job as java action from Oozie workflow .
When i run my mapreduce in my hadoop cluster it runs successfully,but when i run use same jar from Oozie workflow it throw be
This is my workflow .xml
<workflow-app name="HBaseToFileDriver" xmlns="uri:oozie:workflow:0.1">
<start to="mapReduceAction"/>
<action name="mapReduceAction">
<java>
<job-tracker>${jobTracker}</job-tracker>
<name-node>${nameNode}</name-node>
<prepare>
<delete path="${outputDir}"/>
</prepare>
<configuration>
<property>
<name>mapred.mapper.new-api</name>
<value>true</value>
</property>
<property>
<name>mapred.reducer.new-api</name>
<value>true</value>
</property>
<property>
<name>oozie.libpath</name>
<value>${appPath}/lib</value>
</property>
<property>
<name>mapreduce.job.queuename</name>
<value>root.fricadev</value>
</property>
</configuration>
<main-class>com.thomsonretuers.hbase.HBaseToFileDriver</main-class>
<arg>fricadev:FinancialLineItem</arg>
<capture-output/>
</java>
<ok to="end"/>
<error to="killJob"/>
</action>
<kill name="killJob">
<message>"Killed job due to error: ${wf:errorMessage(wf:lastErrorNode())}"</message>
</kill>
<end name="end" />
</workflow-app>
Below is my exception when i see the logs in the YARN .
even though is showing as succeeded but output files are not getting generated .

Answer 1

Have you look into Oozie Java Action
IMPORTANT: In order for a Java action to succeed on a secure cluster, it must propagate the Hadoop delegation token like in the following code snippet (this is benign on non-secure clusters):
// propagate delegation related props from launcher job to MR job
if (System.getenv("HADOOP_TOKEN_FILE_LOCATION") != null) {
jobConf.set("mapreduce.job.credentials.binary", System.getenv("HADOOP_TOKEN_FILE_LOCATION"));
}
You must get HADOOP_TOKEN_FILE_LOCATION from system env variable and set to the property mapreduce.job.credentials.binary.
HADOOP_TOKEN_FILE_LOCATION is set by oozie at runtime.