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From David Capwell <>
Subject Re: HCatalog for Key/Value and Document Stores
Date Mon, 09 Jul 2012 22:14:30 GMT
There is a notion in Hive called StorageHandler; these are used to add
hbase and cassandra support.  Hcat 0.4 currently doesn't work well with
storage handlers but there was a plan to get that to work down the road (no
idea when).  This would allow you to read/push data from/to different data

On Fri, Jul 6, 2012 at 8:17 PM, Russell Jurney <>wrote:

> I have a question about the vision of HCatalog and how it fits in with
> 'NoSQL' projects other than Hive and Pig.
> Currently HCatalog enables sharing of data between Pig and Hive users on a
> common cluster. This fits the analytics workload when more casual users
> consume data in Hive that were created in Pig by a data scientist or
> programmer.  There is another workflow that is common in analytics
> application development, where data is prepared in Pig or Hive, and
> published for consumption in a web application via a specialized store -
> key/value, document, etc. or even a relational database.
> Is it reasonable to use HCatalog to locate, share and integrate with
> key/value, document stores or relational databases? Is this on the map?
> Where would one start when learning about building this?
> --
> Russell Jurney datasyndrome.
> com

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