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From Nate McCall <n...@datastax.com>
Subject Re: Gora & Riak
Date Wed, 25 Jan 2012 16:11:44 GMT
Well what interested me initially about Gora was the focus on columnar
data stores.

I've spent some time on ORM tiers and related with Apache Cassandra
integration (hector-jpa, hector-ORM, and a JSR-347 impl), and I just
want to throw up a warning about the level of effort required to
engineer around impedance mismatch when you start targeting
fundamentally different architectures.

Now the differences between k/v and columnar datastores are at least
negotiable (document stores as well to some degree), but integrating
the number of different storage architectures into the same ORM
plumbing as you suggest will quickly become a headache.

(Full disclosure - I am currently under the employ of a commercial
Apache Cassandra vendor).

On Wed, Jan 25, 2012 at 2:14 PM, Lewis John Mcgibbney
<lewis.mcgibbney@gmail.com> wrote:
> Hi Nate,
> Thanks for shipping in on this one.
> Based on our vision for data persistence; we describe within the scope to
> support object mapping to Column stores such as HBase, Cassandra,
> Hypertable; key-value stores such as Voldermort, Redis, etc; SQL databases,
> such as MySQL, HSQLDB, flat files in local file system of Hadoop HDFS.
> I assume at some stage in the future, someone will come along and implement
> a module for gora-voldermort or gora-redis... so maybe gora-riak?
> I think a big part of this is to open up Gora as a project to as many
> communities as possible, if people have problems which Gora can address and
> help to solve then maybe we are missing an oppertunity if we don't act. I
> am personally not using Riak but some guys I know are using it, I just
> wondered if gora-riak was a go'er...?
> Thanks for now
> Lewis
> On Tue, Jan 24, 2012 at 4:57 PM, Nate McCall <nate@datastax.com> wrote:
>> Riak is a key/value storage architecture much closer to DynamoDB. Is
>> this a direction you want to go?
>> Of the k/v stores out there, it is a mature product, though.
>> On Tue, Jan 24, 2012 at 8:47 AM, Lewis John Mcgibbney
>> <lewis.mcgibbney@gmail.com> wrote:
>> > Hi Guys,
>> >
>> > I've been speaking with a friend recently who has started learning and
>> > using Riak. I wonder if anyone else has experiences using this store and
>> > whether or not a gora-riak module would be worth logging? I realize that
>> > there is plenty enough work to be getting done with Gora, however there
>> > might be a possibility that some students would work on a project such as
>> > this.
>> >
>> > Thanks
>> >
>> > Lewis
>> >
>> > --
>> > *Lewis*
> --
> *Lewis*

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