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From: Jeremy Hanna <jeremy.hanna1234@gmail.com>
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Subject: Re: Hadoop package exposed through thrift
Date: Tue, 8 Jun 2010 16:53:03 -0500
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I just didn't know if there were any way to make it easier for the =
non-java crowd to take advantage of it.  I'll give it some more thought.

On Jun 8, 2010, at 4:05 PM, Jonathan Ellis wrote:

> exposing it through thrift would mean the path would be
>=20
> client
> to cassandra [processing thrift command]
> to hadoop [giving it a job]
> to cassandra [fetching the data]
> to hadoop [m/r]
> to cassandra [handing result back]
> to client
>=20
> it just doesn't seem like a good design to me.
>=20
> additionally, thrift is meant more for "stuff your app is doing
> constantly" while hadoop handles analytics queries.  this separation
> of duties makes a lot of sense to me.
>=20
> On Tue, Jun 8, 2010 at 1:45 PM, Jeremy Hanna =
<jeremy.hanna1234@gmail.com> wrote:
>> When I gave a presentation on cassandra+hadoop, some ruby folks were =
wondering about the possibility of using the MapReduce functionality in =
a language other than Java.
>>=20
>> I was just wondering if any thought was given to exposing the =
org.apache.cassandra.hadoop functionality through thrift.  That way the =
MapReduce code could be used by several languages and secondarily by =
client authors.
>>=20
>> I'm just trying to see if there is any reason why it wasn't exposed =
through thrift or if more needs to be done before it could be exposed to =
languages other than Java.
>>=20
>> Thanks,
>>=20
>> Jeremy
>=20
>=20
>=20
> --=20
> Jonathan Ellis
> Project Chair, Apache Cassandra
> co-founder of Riptano, the source for professional Cassandra support
> http://riptano.com


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