# Parallel Reader fail on command line

**URL:** <https://forum.cloverdx.com/t/parallel-reader-fail-on-command-line/1311>\
**Category:** CloverDX Platform\
**Created:** [November 22, 2013, 12:00am UTC](https://forum.cloverdx.com/t/parallel-reader-fail-on-command-line/1311 "2013-11-22T00:00:00Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![prashantkk](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@prashantkk](https://forum.cloverdx.com/u/prashantkk)\
**Post date:** [November 22, 2013, 12:00am UTC](https://forum.cloverdx.com/t/parallel-reader-fail-on-command-line/1311/1 "2013-11-22T00:00:00Z")

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I am trying to run a graph from command line. The graph uses PARALLEL\_READER component to read some csv files. I followed following steps:

1. Set CLOVER\_HOME  
2. navigate to project folder  
3. run graph

It throws following exception:

Unknown component: PARALLEL\_READER class: PARALLEL\_READER  
Inner exception: org.jetel.exception.XMLConfigurationException  
at org.jetel.graph.TransformationGraphXMLReaderWriter.throwXMLConfigurationException(TransformationGraphXMLReaderWriter.java:1096)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiatePhases(TransformationGraphXMLReaderWriter.java:528)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.read(TransformationGraphXMLReaderWriter.java:412)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.read(TransformationGraphXMLReaderWriter.java:317)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.loadGraph(TransformationGraphXMLReaderWriter.java:247)  
at org.jetel.graph.runtime.PrimitiveAuthorityProxy.executeGraphSync(PrimitiveAuthorityProxy.java:218)  
at org.jetel.component.RunGraph.runGraphThisInstance(RunGraph.java:503)  
at org.jetel.component.RunGraph.runSingleGraph(RunGraph.java:400)  
at org.jetel.component.RunGraph.execute(RunGraph.java:281)  
at org.jetel.graph.Node.run(Node.java:506)  
at java.lang.Thread.run(Thread.java:724)  
Caused by: org.jetel.exception.XMLConfigurationException  
at org.jetel.graph.TransformationGraphXMLReaderWriter.throwXMLConfigurationException(TransformationGraphXMLReaderWriter.java:1096)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.throwXMLConfigurationException(TransformationGraphXMLReaderWriter.java:1091)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiateNodes(TransformationGraphXMLReaderWriter.java:581)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiatePhases(TransformationGraphXMLReaderWriter.java:522)  
… 9 more  
Caused by: java.lang.RuntimeException: Unknown component: PARALLEL\_READER class: PARALLEL\_READER  
at org.jetel.component.ComponentFactory.getComponentClass(ComponentFactory.java:111)  
at org.jetel.component.ComponentFactory.createComponent(ComponentFactory.java:128)  
at org.jetel.graph.TransformationGraphXMLReaderWriter.instantiateNodes(TransformationGraphXMLReaderWriter.java:566)  
… 10 more  
Caused by: java.lang.ClassNotFoundException: PARALLEL\_READER  
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)  
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)  
at java.security.AccessController.doPrivileged(Native Method)  
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)  
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)  
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)  
at java.lang.Class.forName0(Native Method)  
at java.lang.Class.forName(Class.java:190)  
at org.jetel.component.ComponentFactory.getComponentClass(ComponentFactory.java:101)  
… 12 more

Any ideas?

Prashant

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<div class="post-metadata">

**Author:** ![novakj](https://avatars.discourse-cdn.com/v4/letter/n/47e85d/32.png) [@novakj](https://forum.cloverdx.com/u/novakj)\
**Post date:** [November 25, 2013, 3:07pm UTC](https://forum.cloverdx.com/t/parallel-reader-fail-on-command-line/1311/2 "2013-11-25T15:07:38Z")

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Hi Prashant,

Can I ask you, what kind of CloverETL do you use (own build of engine, community designer, designer - paid/trial, server,…)?

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<div class="post-metadata">

**Author:** ![prashantkk](https://avatars.discourse-cdn.com/v4/letter/p/f17d59/32.png) [@prashantkk](https://forum.cloverdx.com/u/prashantkk)\
**Post date:** [November 26, 2013, 10:12pm UTC](https://forum.cloverdx.com/t/parallel-reader-fail-on-command-line/1311/3 "2013-11-26T22:12:22Z")

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Yes. I am using the commercial component. I guess i will need a license to use it from command line.

thanks  
prashant