you have the wrong hadoop on your classpath, or you did not recompile against hadoop 2.
On Thu, Dec 12, 2013 at 12:18 PM, qiaoresearcher <qiaoresearc...@gmail.com>wrote: > Everything was fine with hadoop 1.x and pig 0.11. > Recently I installed hadoop 2.2.0 and pig 0.12.0, and run some simple one > line script : load some csv file data into a relation. The job is failed. > > The error log message is given below: > > $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$ > > 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:225) > at > > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigOutputFormat.checkOutputSpecs(PigOutputFormat.java:186) > 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.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:722) > at > > org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher$1.run(MapReduceLauncher.java:270) > > Pig Stack Trace > --------------- > ERROR 1066: Unable to open iterator for alias batting > > org.apache.pig.impl.logicalLayer.FrontendException: ERROR 1066: Unable to > open iterator for alias batting > at org.apache.pig.PigServer.openIterator(PigServer.java:880) > at org.apache.pig.tools.grunt.GruntParser.processDump(GruntParser.java:774) > at > > org.apache.pig.tools.pigscript.parser.PigScriptParser.parse(PigScriptParser.java:372) > at > > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:198) > at > > org.apache.pig.tools.grunt.GruntParser.parseStopOnError(GruntParser.java:173) > at org.apache.pig.tools.grunt.Grunt.run(Grunt.java:69) > at org.apache.pig.Main.run(Main.java:541) > at org.apache.pig.Main.main(Main.java:156) > 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:601) > at org.apache.hadoop.util.RunJar.main(RunJar.java:212) > Caused by: java.io.IOException: Job terminated with anomalous status FAILED > at org.apache.pig.PigServer.openIterator(PigServer.java:872) > ... 12 more > > ================================================================================ > > Any comments? thanks! >
