My guess is that this is Avro side. We've seen similar traces with Nutch. This looks like a JIRA ticket. On May 11, 2014 4:53 PM, "Deepak" <[email protected]> wrote:
> > > On 07-May-2014, at 7:35 am, ÐΞ€ρ@Ҝ (๏̯͡๏) <[email protected]> wrote: > > Exception: > > 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; > > Any suggestions ? Or does this require a fix from Avro ? > > Regards, > > Deepak > >
