Hi, I have built giraph-1.0.0-for-hadoop-2.0.0-cdh4.1.2-jar-with-dependencies.jar. When I am running my code on cluster where CDH-4.5 is installed, I am getting java.lang.IncompatibleClassChangeError.
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.mapred.JobClient$2.run(JobClient.java:987) at org.apache.hadoop.mapred.JobClient$2.run(JobClient.java:948) 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:1408) at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:948) at org.apache.hadoop.mapreduce.Job.submit(Job.java:566) at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:596) at org.apache.giraph.job.GiraphJob.run(GiraphJob.java:237) 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:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.apache.hadoop.util.RunJar.main(RunJar.java:208) I have checked that *JobContext is an interface in CDH-4.1.2 and in CDH-4.5 but it is a class in Hadoop-1.0.0*. So what is the issue? I am nowhere using Hadoop-1.0.0, why am I getting this error then? *Is Giraph-1.0.0 not compatible with CDH-4.1.2 or CDH-4.5 for Hadoop2.0.0?*If yes, Why CDH-4.1.2 profile is given in the pom.xml file? I am totally confused. Please help me. Regards, Agrta Rawat On Wed, Apr 2, 2014 at 1:02 PM, Pascal Jäger <pas...@pascaljaeger.de> wrote: > Hi Argat, > > try it without the = > > I used: mvn install -Phadoop_cdh4.1.2 -DskipTests > > Don't forget to run cdh on java 7, it install java 6 ;) > > Regards > > Pascal > > Am 02.04.2014 um 08:50 schrieb Agrta Rawat <agrta.ra...@gmail.com>: > > Hi Lukas, > > I have installed CDH 4.5 and have built jar for hadoop-cdh4.1.2 profile > as this is the only profile close to the CDH 4.5 version. But I am getting > same error. > For creating the jar, I used the command -> mvn clean install > -P=hadoop-cdh4.1.2 inside giraph-core folder. > > Is this error because of hadoop-cdh4.1.2 profile? I also checked for > hadoop-cdh4.5 profile but could not find it in pom.xml. > Please suggest me what should be done > > Regards, > Agrta Rawat > > >