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List:       cassandra-dev
Subject:    Re: counterpart to HBase's coprocessors.
From:       hongbin ma <mahongbin () apache ! org>
Date:       2015-12-11 7:20:28
Message-ID: CAF7etTk4Q7kOecJW+0S4AVYdv76nLby1bq7itAq3oAt0e=CeWg () mail ! gmail ! com
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cool, i'll check this, thanks!

On Fri, Dec 11, 2015 at 3:07 PM, Jeff Jirsa <jjirsa@gmail.com> wrote:

> SOME lightweight processing is possible with UDFs / UDAs:
> http://www.planetcassandra.org/blog/user-defined-functions-in-cassandra-3-0
> /
>
>
> They're not directly comparable to Hbase coprocessors, but they allow some
> computation on the server.
>
>
>
> On 12/10/15, 11:02 PM, "hongbin ma" <mahongbin@apache.org> wrote:
>
> >hi community
> >
> >I'm new to Cassandra and i'm wondering if there is a counterpart to
> >HBase's
> >coprocessors in Cassandra. (basically i want to move some of the
> >computation to the server where data resides)
> >
> >I did a little googling and found
> >https://issues.apache.org/jira/browse/CASSANDRA-1311 similar to what I'm
> >looking for.
> >However it seems not exactly the same thing. Then I found the article
> >
> http://www.javaworld.com/article/2140805/big-data/big-data-showdown-cassan
> >dra-vs-hbase.html
> >clearly claims that "Cassandra currently has no counterpart to HBase's
> >coprocessors."
> >
> >Can I get some clear answer here? If it  Cassandra currently has no
> >counterpart to HBase's coprocessors, is there any plan to implement a
> >framework that supports "move-computation-to-data"? I believe HBase was
> >not
> >born with coprocessors:)
> >
> >thanks ahead!
> >
> >--
> >Regards,
> >
> >*Bin Mahone | 马洪宾*
> >Apache Kylin: http://kylin.io
> >Github: https://github.com/binmahone
>
>
>


-- 
Regards,

*Bin Mahone | 马洪宾*
Apache Kylin: http://kylin.io
Github: https://github.com/binmahone


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