[AVRO-1506] 2.4 v of Hadoop causes IncompatibleClassChangeError

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 1.7.6

Environment

Hadoop Details
Started: Tue May 06 16:18:04 GMT-07:00 2014
Version: 2.4.0.2.1.1.0-385, 68ceccf06a4441273e81a5ec856d41fc7e11c792
Compiled: 2014-04-16T21:24Z by jenkins from (no branch)
Cluster ID: CID-fb86b3cf-7787-4c67-998f-24f00e43c137
Block Pool ID: BP-1163369527-10.65.216.196-1399412949036

Avro 1.7.6

• Assignee: Unassigned
• Reporter: Deepak Kumar V
• Created: 12/May/14 03:21
• Updated: 23/Jun/14 05:32
• Resolved: 14/May/14 09:33

Description

jjava.lang.Exception: java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.TaskAttemptContext, but class was expected
at org.apache.hadoop.mapred.LocalJobRunner$Job.runTasks(LocalJobRunner.java:462)
at org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:522)
Caused by: java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.TaskAttemptContext, but class was expected
at org.apache.avro.mapreduce.AvroRecordReaderBase.initialize(AvroRecordReaderBase.java:86)
at com.tracking.sdk.pig.load.format.AggregateRecordReader.initialize(AggregateRecordReader.java:41)
at org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigRecordReader.initialize(PigRecordReader.java:192)
at org.apache.hadoop.mapred.MapTask$NewTrackingRecordReader.initialize(MapTask.java:525)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)

at org.apache.hadoop.mapred.LocalJobRunner$Job$MapTaskRunnable.run(LocalJobRunner.java:243)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)

at java.util.concurrent.FutureTask.run(FutureTask.java:262)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)

at java.lang.Thread.run(Thread.java:744)

Imports used in my recordreader class.
import org.apache.avro.Schema;
import org.apache.avro.mapreduce.AvroKeyValueRecordReader;
import org.apache.hadoop.mapreduce.InputSplit;
import org.apache.hadoop.mapreduce.TaskAttemptContext;