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From Jean-Daniel Cryans <jdcry...@apache.org>
Subject Re: Spark on Kudu
Date Wed, 24 Feb 2016 23:51:43 GMT
The DStream stuff isn't there at all. I'm not sure if it's needed either.

The kuduRDD is just leveraging the MR input format, ideally we'd use scans

The SparkSQL stuff is there but it doesn't do any sort of pushdown. It's
really basic.

The goal was to provide something for others to contribute to. We have some
basic unit tests that others can easily extend. None of us on the team are
Spark experts, but we'd be really happy to assist one improve the
kudu-spark code.


On Wed, Feb 24, 2016 at 3:41 PM, Benjamin Kim <bbuild11@gmail.com> wrote:

> J-D,
> It looks like it fulfills most of the basic requirements (kudu RDD, kudu
> DStream) in KUDU-1214. Am I right? Besides shoring up more Spark SQL
> functionality (Dataframes) and doing the documentation, what more needs to
> be done? Optimizations?
> I believe that it’s a good place to start using Spark with Kudu and
> compare it to HBase with Spark (not clean).
> Thanks,
> Ben
> On Feb 24, 2016, at 3:10 PM, Jean-Daniel Cryans <jdcryans@apache.org>
> wrote:
> AFAIK no one is working on it, but we did manage to get this in for 0.7.0:
> https://issues.cloudera.org/browse/KUDU-1321
> It's a really simple wrapper, and yes you can use SparkSQL on Kudu, but it
> will require a lot more work to make it fast/useful.
> Hope this helps,
> J-D
> On Wed, Feb 24, 2016 at 3:08 PM, Benjamin Kim <bbuild11@gmail.com> wrote:
>> I see this KUDU-1214 <https://issues.cloudera.org/browse/KUDU-1214> targeted
>> for 0.8.0, but I see no progress on it. When this is complete, will this
>> mean that Spark will be able to work with Kudu both programmatically and as
>> a client via Spark SQL? Or is there more work that needs to be done on the
>> Spark side for it to work?
>> Just curious.
>> Cheers,
>> Ben

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