Sure, this is it
Actually it usually happens when i see the graph, go back
change a little the program and recreate the package with maven (same name for
the jar)
re-upload the package and try to re-start it
killing e restarting the web-client solve the problem
An error occurred while invoking the program:
The main method caused an error.
java.io.IOException: Class not found
at
com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassReader.a(Unknown
Source)
at
com.esotericsoftware.reflectasm.shaded.org.objectweb.asm.ClassReader.<init>(Unknown
Source)
at
org.apache.flink.api.scala.ClosureCleaner$.org$apache$flink$api$scala$ClosureCleaner$$getClassReader(ClosureCleaner.scala:42)
at
org.apache.flink.api.scala.ClosureCleaner$.getInnerClasses(ClosureCleaner.scala:90)
at
org.apache.flink.api.scala.ClosureCleaner$.clean(ClosureCleaner.scala:113)
at org.apache.flink.api.scala.DataSet.clean(DataSet.scala:120)
at org.apache.flink.api.scala.DataSet$$anon$6.<init>(DataSet.scala:437)
at org.apache.flink.api.scala.DataSet.filter(DataSet.scala:436)
at it.polimi.query.GSelect4$.binRegionsSelection(GSelect4.scala:104)
at it.polimi.query.GSelect4$.apply(GSelect4.scala:59)
at it.polimi.Main$.main(Main.scala:50)
at it.polimi.Main.main(Main.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:744)
Il giorno 13/lug/2015, alle ore 15:00, Maximilian Michels
<[email protected]<mailto:[email protected]>> ha scritto:
Hi Michele,
Sorry to hear you are experiencing problems with the web client. Which version
of Flink are you using?
Could you paste the whole error message you see? Thank you.
Best regards,
Max
On Sun, Jul 12, 2015 at 11:21 AM, Michele Bertoni
<[email protected]<mailto:[email protected]>> wrote:
I think there is a problem with the web-client
Quite often I can use it for a single run and then it crash
especially if after seeing the graph i click back, on the second run i get a
class not found exception
from terminal i have to stop and restart it and it works again
Michele
