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https://issues.apache.org/jira/browse/MAPREDUCE-815?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12790949#action_12790949
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Doug Cutting commented on MAPREDUCE-815:
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> What about the AvroOutputFormat?
I suggest we treat it similarly: require either keys or values to be null.
An output format could combine output keys and values into a compound record,
and one could define an input format that splits each input datum into a
separate key and value, but I don't think the basic AvroOutputFormat should do
this. If we add a MapFile-like abstraction for Avro, then its input and output
formats should probably do this.
> Add AvroInputFormat and AvroOutputFormat so that hadoop can use Avro
> Serialization
> ----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-815
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-815
> Project: Hadoop Map/Reduce
> Issue Type: New Feature
> Reporter: Ravi Gummadi
> Assignee: Ravi Gummadi
>
> MapReduce needs AvroInputFormat similar to other InputFormats like
> TextInputFormat to be able to use avro serialization in hadoop. Similarly
> AvroOutputFormat is needed.
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