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https://issues.apache.org/jira/browse/AVRO-1306?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13638274#comment-13638274
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Doug Cutting commented on AVRO-1306:
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We might instead consider this a bug, and fix it in the code rather than the
documentation. The intent is that an AvroReducer could be used as a combiner.
TestWordCount.java specifies an AvroReducer as a Combiner. Perhaps it's never
used as such? I note that TestReflectJob.java has a similar line commented
out, perhaps masking this bug.
Would fixing this be an incompatible change? If so, would it be worth it?
> Clarify documentation for hadoop input-avro output-non-avro instructions
> ------------------------------------------------------------------------
>
> Key: AVRO-1306
> URL: https://issues.apache.org/jira/browse/AVRO-1306
> Project: Avro
> Issue Type: Improvement
> Components: java
> Affects Versions: 1.7.5
> Reporter: Mina Naguib
> Priority: Minor
> Labels: documentation, patch
> Attachments: input_avro_output_nonavro_doc_update.diff
>
>
> The documentation for hadoop usage (input avro, output non-avro) is
> misleading, as the Reducer is likely not usable as a combiner. Attached
> patch clarifies documentation.
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