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From Olga Golovneva <melcha...@gmail.com>
Subject Re: ClassNotFoundException
Date Thu, 29 Sep 2016 03:08:04 GMT
Hi Vasia,

Thanks a lot for your help! It worked out!

Best regards,
Olga

Best regards,
Olga Golovneva

On Wed, Sep 28, 2016 at 6:12 PM, Vasiliki Kalavri <vasilikikalavri@gmail.com
> wrote:

> Hi Olga,
>
> have you copied the flink-gelly jar to your TaskManagers? See the
> instructions in [1] on how you can make the gelly classes available during
> execution and let us know if you have any problems.
>
> Best,
> -Vasia,
>
> [1]:
> https://ci.apache.org/projects/flink/flink-docs-
> master/dev/cluster_execution.html#linking-with-modules-not-
> contained-in-the-binary-distribution
>
> On 28 September 2016 at 20:58, Olga Golovneva <melchaeva@gmail.com> wrote:
>
> > Hi devs,
> >
> > I'm trying to run Gelly ClusteringCoefficient example on a cluster using
> > this command:
> >
> > flink run -C
> > file://home/ubuntu/flink/flink-libraries/flink-gelly/
> > target/flink-gelly_2.10-1.2-SNAPSHOT.jar
> > -c org.apache.flink.graph.examples.ClusteringCoefficient
> > flink-gelly-examples_2.10-1.2-SNAPSHOT.jar
> >
> > and get the following ClassNotFoundException:
> >
> > ------------------------------------------------------------
> >
> >  The program finished with the following exception:
> >
> >
> > java.lang.RuntimeException: Could not look up the main(String[]) method
> > from the class org.apache.flink.graph.examples.ClusteringCoefficient:
> > org/apache/flink/graph/GraphAnalytic
> >
> > at
> > org.apache.flink.client.program.PackagedProgram.
> > hasMainMethod(PackagedProgram.java:478)
> >
> > at
> > org.apache.flink.client.program.PackagedProgram.<init>
> > (PackagedProgram.java:216)
> >
> > at org.apache.flink.client.CliFrontend.buildProgram(
> CliFrontend.java:829)
> >
> > at org.apache.flink.client.CliFrontend.run(CliFrontend.java:222)
> >
> > at
> > org.apache.flink.client.CliFrontend.parseParameters(
> CliFrontend.java:1002)
> >
> > at org.apache.flink.client.CliFrontend.main(CliFrontend.java:1045)
> >
> > Caused by: java.lang.NoClassDefFoundError:
> > org/apache/flink/graph/GraphAnalytic
> >
> > at java.lang.Class.getDeclaredMethods0(Native Method)
> >
> > at java.lang.Class.privateGetDeclaredMethods(Class.java:2625)
> >
> > at java.lang.Class.getMethod0(Class.java:2866)
> >
> > at java.lang.Class.getMethod(Class.java:1676)
> >
> > at
> > org.apache.flink.client.program.PackagedProgram.
> > hasMainMethod(PackagedProgram.java:473)
> >
> > ... 5 more
> >
> > Caused by: java.lang.ClassNotFoundException:
> > org.apache.flink.graph.GraphAnalytic
> >
> > 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)
> >
> > ... 10 more
> >
> > __________________
> >
> > I got similar Exceptions for other examples in Gelly library, only the
> > missing methods are different. Perhaps someone more knowledgeable could
> > kindly help? Where should I look for org.apache.flink.graph.
> GraphAnalytic?
> > I thought it should be in flink-gelly_2.10-1.2-SNAPSHOT.jar, but it does
> > not work
> >
> > Thank you,
> > Olga
> >
>

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