Pig 0.14 uses Hadoop 2.4.0 by default, but you have Hadoop 2.3.0 . You may change the Hadoop version in $PIG_HOME/ivy/libraries.properties to: hadoop-common.version=2.3.0 hadoop-hdfs.version=2.3.0 hadoop-mapreduce.version=2.3.0
Then try to recompile Pig: ant clean jar -Dhadoopversion=23 --Lorand On 07/01/15 03:41, Berin Loritsch wrote:
I'm trying to run a Pig Latin script on 0.14.0, and I've been having some configuration issues. I'm assuming this is part of that. I have Hadoop 2.3.0 on windows running as a single node. When I run my PIG script, I get this exception: Backend error message during job submission ------------------------------------------- Unexpected System Error Occured: java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.JobContext, but class was expected at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.setupUdfEnvAndStores(PigOutputFormat.java:235) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.checkOutputSpecs(PigOutputFormat.java:183) at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:458) at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:343) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1285) at org.apache.hadoop.mapreduce.Job$10.run(Job.java:1282) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:422) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1548) at org.apache.hadoop.mapreduce.Job.submit(Job.java:1282) at org.apache.hadoop.mapreduce.lib.jobcontrol.ControlledJob.submit(ControlledJob.java:335) at org.apache.hadoop.mapreduce.lib.jobcontrol.JobControl.run(JobControl.java:240) at org.apache.pig.backend.hadoop20.PigJobControl.run(PigJobControl.java:121) at java.lang.Thread.run(Thread.java:745) at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:276) Pig Stack Trace --------------- ERROR 2244: Job failed, hadoop does not return any error message org.apache.pig.backend.executionengine.ExecException: ERROR 2244: Job failed, hadoop does not return any error message at org.apache.pig.tools.grunt.GruntParser.executeBatch(GruntParser.java:179) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:234) at org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:205) at org.apache.pig.tools.grunt.Grunt.exec(Grunt.java:81) at org.apache.pig.Main.run(Main.java:624) at org.apache.pig.Main.main(Main.java:170)
