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https://issues.apache.org/jira/browse/HBASE-12946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14298987#comment-14298987
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Nick Dimiduk commented on HBASE-12946:
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Now that we have abstractions at the client-api level, I think the limiting
factor is the map reduce code for writing HFiles. As [~enis] commented in the
thread you linked, we should have a separate hbase-storage module that both a
hbase-server and hbase-mapreduce modules can depend upon.
> Decouple MapReduce pieces from hbase-server
> -------------------------------------------
>
> Key: HBASE-12946
> URL: https://issues.apache.org/jira/browse/HBASE-12946
> Project: HBase
> Issue Type: Improvement
> Reporter: Lars Francke
>
> I could not find an existing issue for this.
> This has come up multiple times publicly:
> * http://comments.gmane.org/gmane.comp.java.hadoop.hbase.user/41916
> * http://gbif.blogspot.de/2014/11/upgrading-our-cluster-from-cdh4-to-cdh5.html
> It'd be great if we could either move the mapreduce pieces to hbase-client or
> get a hbase-mapreduce component. Some things seem easy to decouple others not
> so much.
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