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Posted to dev@pig.apache.org by "Cheolsoo Park (JIRA)" <ji...@apache.org> on 2014/06/30 08:02:24 UTC
[jira] [Commented] (PIG-4044) Pig should use
avro-mapred-hadoop2.jar instead of avro-mapred.jar when compile with hadoop
2
[ https://issues.apache.org/jira/browse/PIG-4044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14047409#comment-14047409 ]
Cheolsoo Park commented on PIG-4044:
------------------------------------
+1
> Pig should use avro-mapred-hadoop2.jar instead of avro-mapred.jar when compile with hadoop 2
> --------------------------------------------------------------------------------------------
>
> Key: PIG-4044
> URL: https://issues.apache.org/jira/browse/PIG-4044
> Project: Pig
> Issue Type: Bug
> Components: impl
> Reporter: Daniel Dai
> Assignee: Daniel Dai
> Fix For: 0.14.0
>
> Attachments: PIG-4044-1.patch
>
>
> We see the following stack when using AvroStorage when using hadoop 2:
> 2014-06-28 22:42:25,656 FATAL [main] org.apache.hadoop.mapred.YarnChild: Error running child : java.lang.IncompatibleClassChangeError: Found interface org.apache.hadoop.mapreduce.TaskAttemptContext, but class was expected
> at org.apache.avro.mapreduce.AvroRecordReaderBase.initialize(AvroRecordReaderBase.java:87)
> 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.YarnChild$2.run(YarnChild.java:167)
> 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:1557)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:162)
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