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From Travis Crawford <>
Subject Re: HCatalog and Hive
Date Tue, 30 Oct 2012 15:48:55 GMT
Hey Juan -

There's actually an ongoing discussion about this. From my perspective it
would make a lot of sense to extract the metastore/serde parts of hive as
reusable components for use by all processing frameworks. Of course the
Hive folks would need to agree with te vision of a common metadata and
read/write path for Hadoop in general to do this.

If you have hive setup, even before this discussion plays out, you can
read/write your hive data with pig today. The giraph folks also have an
hcatalog adapter.

I don't have a crystal ball to know how the hive/hcatalog stuff plays out,
but from a user perspective it shouldn't matter much. Just use the hcatalog
adapters and we'll take care of the rest!


On Tuesday, October 30, 2012, Juan P. wrote:

> Hi guys,
> I've been reading the documentation and I was wondering if there's a plan
> to merge HCatalog and Hive into a one project at some point.
> There seem to be some common goals, and a lot of dependency with Hive.
> I get the idea that Hive should strive to provide a lot of the
> functionalities in HCatalog, and the latter needs a lot of the former's
> infrastructure in order to work.
> Or did I completely miss the point?
> Thanks!
> Juan

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