D-Net

<workflow-app xmlns="uri:oozie:workflow:0.3" name="line-by-line-copier">

    <start to="producer"/>

    <action name="producer">

        <java>

            <job-tracker>${jobTracker}</job-tracker>

            <name-node>${nameNode}</name-node>

			<!-- The data generated by this node is deleted in this section -->

			<prepare>

				<delete path="${nameNode}${workingDir}/producer" />

				<mkdir path="${nameNode}${workingDir}/producer" />

			</prepare>

            <configuration>

                <property>

                    <name>mapred.job.queue.name</name>

                    <value>${queueName}</value>

                </property>

            </configuration>

            <main-class>eu.dnetlib.iis.core.java.ProcessWrapper</main-class>

            <arg>eu.dnetlib.iis.core.examples.protobuf.java.TextDataProducer</arg>

            <!-- All input and output ports have to be bound to paths in 

            HDFS, working directory has to be specified as well -->

            <arg>-Operson=${workingDir}/producer/person.csv</arg>

            <arg>-Odocument=${workingDir}/producer/doc.csv</arg>

        </java>

        <ok to="copier"/>

        <error to="fail"/>

    </action>

    <action name="copier">

        <java>

            <job-tracker>${jobTracker}</job-tracker>

            <name-node>${nameNode}</name-node>

			<!-- The data generated by this node is deleted in this section -->

			<prepare>

				<delete path="${nameNode}${workingDir}/copier" />

				<mkdir path="${nameNode}${workingDir}/copier" />

			</prepare>

            <configuration>

                <property>

                    <name>mapred.job.queue.name</name>

                    <value>${queueName}</value>

                </property>

            </configuration>

            <main-class>eu.dnetlib.iis.core.java.ProcessWrapper</main-class>

            <arg>eu.dnetlib.iis.core.examples.protobuf.java.LineByLineCopier</arg>

            <!-- All input and output ports have to be bound to paths in 

            HDFS, working directory has to be specified as well -->

            <arg>-Iperson=${workingDir}/producer/person.csv</arg>

            <arg>-Idocument=${workingDir}/producer/doc.csv</arg>

            <arg>-Operson_copy=${workingDir}/copier/person_copy.csv</arg>

            <arg>-Odocument_copy=${workingDir}/copier/doc_copy.csv</arg>

        </java>

        <ok to="end"/>

        <error to="fail"/>

    </action>

    <kill name="fail">

        <message>Unfortunately, the process failed -- error message: [${wf:errorMessage(wf:lastErrorNode())}]</message>

    </kill>

    <end name="end"/>

</workflow-app>