I get the same error when I compile Giraph against the default hadoop
version (0.20.203.0), but my project that uses Giraph uses a more recent
hadoop version. Did you set the hadoop version via a maven profile when
compiling Giraph (e.g. mvn -Phadoop_1.0 compile for hadoop 1.0)?

Presumably, there's a way to compile Giraph for Yarn. There's even a Yarn
profile in the pom.xml. I personally haven't had success building it though.


On Mon, Dec 2, 2013 at 4:30 PM, Rohit Bhat <rohitbhat.n...@gmail.com> wrote:

> Hi,
>
> I am new to Giraph. I have installed Yarn (hadoop 2.2.0) and have
> installed Giraph on top of it. I have been trying to
> execute SimpleShortestPathsComputation example but i am getting the error:
>
> "java.lang.IllegalArgumentException: checkLocalJobRunnerConfiguration:
> When using LocalJobRunner, you cannot run in split master / worker mode
> since there is only 1 task at a time!"
>
> I fixed this by adding an entry in mapred-site.xml for
> mapreduce.jobtracker.address but now i am getting a different error:
>
> *Exception in thread "main" java.lang.IncompatibleClassChangeError: Found
> interface org.apache.hadoop.mapreduce.JobContext, but class was expected*
>  at
> org.apache.giraph.bsp.BspOutputFormat.checkOutputSpecs(BspOutputFormat.java:43)
> at
> org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:456)
>  at
> org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:342)
> at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1268)
>  at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1265)
> at java.security.AccessController.doPrivileged(Native Method)
>  at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1491)
>  at org.apache.hadoop.mapreduce.Job.submit(Job.java:1265)
> at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:250)
>  at org.apache.giraph.GiraphRunner.run(GiraphRunner.java:94)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
>  at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at org.apache.giraph.GiraphRunner.main(GiraphRunner.java:124)
>  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.hadoop.util.RunJar.main(RunJar.java:212)
>
> *Is Giraph compatible with yarn? If yes, am i missing anything?*
>
> Thanks,
> Rohit
>

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