Hi. What flink version is running now in cluster?
I copied your code and packaging with flink quickstart archetype. There is
another error because you don’t add any data sink in the program.
Regards,
Chiwan Park
> On Jun 16, 2015, at 4:17 PM, Thomas Peel <thomas.p...@euranova.eu> wrote:
>
>
>
> Hi guys,
>
> I am having troubles with a portion of code that throws an exception
> when executed on a cluster (through the web interface) but not when
> executed localy.
>
> The code :
>
> object DorotheaLassoRegression {
>
> def main(args: Array[String]): Unit = {
>
> val env = ExecutionEnvironment.getExecutionEnvironment
>
> val y = env.readTextFile(
> "hdfs://IP_ADDRESS/PATH_TO_FILE/dorothea_train.labels"
> ).setParallelism(1).map(x => x.toDouble)
>
> val Y = y.reduceGroup(iterator => iterator.toArray)
> env.execute()
> }
> }
>
> The exception:
> An error occurred while invoking the program:
>
> The main method caused an error.
>
> java.lang.ClassNotFoundException:
> eu.enx.flink.paper01.DorotheaLassoRegression$$anonfun$3$$anonfun$4 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:425) at
> java.lang.ClassLoader.loadClass(ClassLoader.java:358) at
> java.lang.Class.forName0(Native Method) at
> java.lang.Class.forName(Class.java:270) at
> org.apache.flink.api.scala.InnerClosureFinder$$anon$4.visitMethodInsn(ClosureCleaner.scala:317)
> at
> com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassReader.accept(Unknown
> Source) at
> com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassReader.accept(Unknown
> Source) at
> org.apache.flink.api.scala.ClosureCleaner$.getInnerClasses(ClosureCleaner.scala:93)
> at
> org.apache.flink.api.scala.ClosureCleaner$.clean(ClosureCleaner.scala:113)
> at org.apache.flink.api.scala.DataSet.clean(DataSet.scala:123) at
> org.apache.flink.api.scala.DataSet$$anon$9.(DataSet.scala:635) at
> org.apache.flink.api.scala.DataSet.reduceGroup(DataSet.scala:634) at
> eu.enx.flink.paper01.DorotheaLassoRegression$.main(DorotheaLassoRegression.scala:42)
> at
> eu.enx.flink.paper01.DorotheaLassoRegression.main(DorotheaLassoRegression.scala)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:606) at
> org.apache.flink.client.program.PackagedProgram.callMainMethod(PackagedProgram.java:437)
> at
> org.apache.flink.client.program.PackagedProgram.invokeInteractiveModeForExecution(PackagedProgram.java:353)
> at
> org.apache.flink.client.program.Client.getOptimizedPlan(Client.java:229)
> at
> org.apache.flink.client.web.JobSubmissionServlet.doGet(JobSubmissionServlet.java:183)
> at javax.servlet.http.HttpServlet.service(HttpServlet.java:668) at
> javax.servlet.http.HttpServlet.service(HttpServlet.java:770) at
> org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:532)
> at
> org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:453)
> at
> org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:965)
> at
> org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:388)
> at
> org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:187)
> at
> org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:901)
> at
> org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117)
> at
> org.eclipse.jetty.server.handler.HandlerList.handle(HandlerList.java:47)
> at
> org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:113)
> at org.eclipse.jetty.server.Server.handle(Server.java:352) at
> org.eclipse.jetty.server.HttpConnection.handleRequest(HttpConnection.java:596)
> at
> org.eclipse.jetty.server.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:1048)
> at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:549) at
> org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:211)
> at
> org.eclipse.jetty.server.HttpConnection.handle(HttpConnection.java:425)
> at
> org.eclipse.jetty.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:489)
> at
> org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:436)
> at java.lang.Thread.run(Thread.java:745)
>
> Line 42 is the reduceGroup operation. Do you have any ideas ? Is it a
> version problem ?
>
> Thank you for your help, kind regards.
> Thomas
>
> -------------------------
> Thomas Peel
>
> Data Scientist
> (M) +32 478 98 93 81
>
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>
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>
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>
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>
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>
>
