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From Etienne Dumoulin <etienne.dumou...@idiro.com>
Subject Re: SimpleShortestPathsVertex does not work when compiled separately
Date Tue, 24 Jul 2012 13:22:10 GMT
Hi,

I cannot explain it.
But if it any use, for making it working without specifying the library in
command line you can use the distributed cache:
DistributedCache#addFileToClassPath

Regards,

√Čtienne

On 24 July 2012 13:37, Marcin Biczak <marcinbiczak@gmail.com> wrote:

> Hi
>
> I had similar problem, here is "my solution",
> http://stackoverflow.com/questions/10700853/giraph-shortest-paths-example-classnotfoundexception.
> But I still don't know why I have do it like this, maybe someone here can
> explain this?
>
> regards
> marcin biczak
>
>
> 2012/7/24 KAUSHIK SARKAR <countkaushik@gmail.com>
>
>> Hi,
>>
>> I created a new test project and copied the code from
>> SimpleShortestPathsVertex.java file (org.apache.giraph.examples) into it.
>> But when I run it, it gives me java.lang.ClassNotFoundException. However,
>> if I run the same program from the  giraph-0.1-jar-with-dependencies.jar,
>> it runs just fine. Following is the relevant information :
>>
>> Hadoop version: hadoop-1.0.3 (running in pseudo distributed mode)
>> giraph version: giraph-0.1
>> jar created with Eclipse 3.3.1
>> Output:
>>
>> kaushik@kaushik-laptop:~/hadoop/hadoop-1.0.3$ bin/hadoop jar
>> ../jars/test.jar /shortestPathsInputGraph /shortestPathsOutputGraph 0 3
>> 12/07/23 18:29:10 INFO mapred.JobClient: Running job:
>> job_201207231222_0021
>> 12/07/23 18:29:11 INFO mapred.JobClient:  map 0% reduce 0%
>> 12/07/23 18:29:20 INFO mapred.JobClient: Task Id :
>> attempt_201207231222_0021_m_000005_0, Status : FAILED
>> java.lang.RuntimeException: java.lang.RuntimeException:
>> java.lang.ClassNotFoundException:
>> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat
>>         at
>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:899)
>>         at
>> org.apache.giraph.graph.BspUtils.getVertexOutputFormatClass(BspUtils.java:134)
>>         at
>> org.apache.giraph.bsp.BspOutputFormat.getOutputCommitter(BspOutputFormat.java:56)
>>         at org.apache.hadoop.mapred.Task.initialize(Task.java:515)
>>         at org.apache.hadoop.mapred.MapTask.run(MapTask.java:353)
>>         at org.apache.hadoop.mapred.Child$4.run(Child.java:255)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at javax.security.auth.Subject.doAs(Subject.java:396)
>>         at
>> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1121)
>>         at org.apache.hadoop.mapred.Child.main(Child.java:249)
>> Caused by: java.lang.RuntimeException: java.lang.ClassNotFoundException:
>> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat
>>         at
>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:867)
>>         at
>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:891)
>>         ... 9 more
>> Caused by: java.lang.ClassNotFoundException:
>> test.giraph.SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat
>>         at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
>>         at java.security.AccessController.doPrivileged(Native Method)
>>         at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
>>         at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
>>         at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
>>     at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
>>     at java.lang.Class.forName0(Native Method)
>>     at java.lang.Class.forName(Class.java:247)
>>     at
>> org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:820)
>>     at
>> org.apache.hadoop.conf.Configuration.getClass(Configuration.java:865)
>>     ... 10 more
>>
>>
>>
>> I have checked inside the test/giraph folder of the test.jar file. It
>> contains the class
>> SimpleShortestPathsVertex$SimpleShortestPathsVertexOutputFormat.
>> Any help will be appreciated.
>>
>> Regards,
>> Kaushik
>>
>
>
>
> --
> martin
>

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