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https://issues.apache.org/jira/browse/GORA-403?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Talat UYARER resolved GORA-403.
-------------------------------
Resolution: Invalid
Fix Version/s: (was: 0.6)
Yes [~lewismc], we fixed it with GORA_375. I marked it as invalid.
> Gora does not work on Hadoop 2
> ------------------------------
>
> Key: GORA-403
> URL: https://issues.apache.org/jira/browse/GORA-403
> Project: Apache Gora
> Issue Type: Bug
> Components: gora-core
> Affects Versions: 0.5
> Reporter: Talat UYARER
> Priority: Critical
>
> I try to use Gora 0.5 on Hadoop 2.5.2 cluster. However When I submit a job I
> get this error.
> {panel:title=Exception|borderStyle=dashed|borderColor=#ccc|titleBGColor=#F7D6C1|bgColor=#FFFFCE}
> java.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.gora.mapreduce.GoraOutputFormat.getRecordWriter(GoraOutputFormat.java:83)
> at
> org.apache.hadoop.mapred.MapTask$NewDirectOutputCollector.<init>(MapTask.java:624)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:744)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:340)
> at
> org.apache.hadoop.mapred.LocalJobRunner$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:745)
> {panel}
> IMHO Reason of the problem is Our shim modules is not enough for abstraction
> of hadoop1 and hadoop2. We should test our code on Hadoop 2 Testing utils.
> Wdyt folks ?
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