I think you'll want to look at the Hadoop Streaming or Hadoop Pipes API.
Further down the line, I think somebody will want to implement a Haskell
library to deal with the Avro serialization protocol when it becomes
possible to write non-JVM mappers and reducers directly. This JIRA issue
covers the RPC part of the Avro-Hadoop integration work:
https://issues.apache.org/jira/browse/HADOOP-6659
Looks like folks have already implemented support for Thrift and
Protocol Buffers, so implementing a library for Avro would likely be
pretty similar.
-md
begin C K Kashyap quotation:
> Dear Haskellers,
>
> A big part of my new job requires tuning app's on Hadoop. I was wondering if
> there is a way to push some Haskell code in the mix. I did some googling on
> "Hadoop/Haskell" and came across Holumbus - but looks like that is parallel
> to Hadoop.
>
> I was thinking in the lines of doing a Haskell implementation that could run
> in a Hadoop cluster - has anyone tried anything like that?
>
> --
> Regards,
> Kashyap
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