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
