Scheduling a sqoop job in oozie through Shell script using Hue - shell

Question

I am able to run a sqoop command in Oozie using Hue. But, when I try to run the same sqoop command by placing it in a shell script I am getting an error like below
Stdoutput 2016-05-20 10:52:13,241 ERROR [main] sqoop.Sqoop (Sqoop.java:runSqoop(181)) - Got exception running Sqoop:
java.lang.RuntimeException: Could not load db driver class: oracle.jdbc.OracleDriver
I have included the jdbc jar file like I did while running the sqoop command directly. I don't understand why it is not working for shell script.
Here is the workflow generated by Hue
<workflow-app name="My_Workflow" xmlns="uri:oozie:workflow:0.5">
<start to="shell-ca31"/>
<kill name="Kill">
<message>Action failed, error message[${wf:errorMessage(wf:lastErrorNode())}]</message>
</kill>
<action name="shell-ca31">
<shell xmlns="uri:oozie:shell-action:0.1">
<job-tracker>${jobTracker}</job-tracker>
<name-node>${nameNode}</name-node>
<configuration>
<property>
<name>mapred.job.queue.name</name>
<value>default</value>
</property>
<property>
<name>oozie.use.system.libpath</name>
<value>true</value>
</property>
<property>
<name>oozie.libpath</name>
<value>/user/oozie/libext</value>
</property>
</configuration>
<exec>sqoopoozie.sh</exec>
<file>/user/yxr6907/sqoopoozie.sh#sqoopoozie.sh</file>
<archive>/user/oozie/libext/ojdbc7.jar#ojdbc7.jar</archive>
<capture-output/>
</shell>
<ok to="End"/>
<error to="Kill"/>
</action>
<end name="End"/>
</workflow-app>

Answer 1

When you use shell action, jars for sqoop are not imported into classpath.
I was able to solve it by adding the jar into the classpath. Then, i export HADOOP_CLASSPATH and sqoop works.
Use the following:
Put the jar ojdbc7.jar in files
Use the following command inside shell script: export HADOOP_CLASSPATH=${PWD}/ojdbc7.jar
Instead of step 1. you can use the following properties to load jar into classpath:
oozie.use.system.libpath=true
oozie.libpath=/path/to/jars
Exporting HADOOP_CLASSPATH is required in both ways.