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https://issues.apache.org/jira/browse/AVRO-1170?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13550789#comment-13550789
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Josh Spiegel commented on AVRO-1170:
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I downloaded both jars here:
wget http://apache.claz.org/avro/avro-1.7.3/java/avro-mapred-1.7.3-hadoop1.jar
wget http://apache.claz.org/avro/avro-1.7.3/java/avro-mapred-1.7.3-hadoop2.jar
Using either JAR with cdh3u3 (Hadoop 0.20.2) I get this error:
java.lang.IncompatibleClassChangeError: Found class
org.apache.hadoop.mapreduce.TaskAttemptContext, but interface was expected
at
org.apache.avro.mapreduce.AvroKeyInputFormat.createRecordReader(AvroKeyInputFormat.java:47)
So I think both JARS are not compatible with anything before 0.23.0-mr1-cdh4b1
which appears to be when TaskAttemptContext became an interface.
> Avro's new mapreduce APIs don't work with Hadoop 2
> --------------------------------------------------
>
> Key: AVRO-1170
> URL: https://issues.apache.org/jira/browse/AVRO-1170
> Project: Avro
> Issue Type: Bug
> Components: java
> Affects Versions: 1.7.1
> Reporter: Tom White
> Assignee: Tom White
> Fix For: 1.7.3
>
> Attachments: AVRO-1170.patch, AVRO-1170.patch, AVRO-1170.patch,
> AVRO-1170.patch, AVRO-1170.patch
>
>
> Avro does not compile against Hadoop since some interfaces were changed to
> classes between Hadoop 1 and 2 (e.g. TaskAttemptContext).
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