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https://issues.apache.org/jira/browse/HIVE-4331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750501#comment-13750501
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Sushanth Sowmyan commented on HIVE-4331:
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Oh, and one more thing:
{quote}
With this StorageHandlers can use generic OFs.
{quote}
This assertion is incorrect. A more precise assertion would be that with this
patch, Hive can use generic OFs that do not do anything useful or necessary in
their outputcommitters(i.e. do not need calls on them to be made). If an OF is
designed with an outputcommitter in mind, chances are that it will need some
retrofitting before it will work from within hive.
> Integrated StorageHandler for Hive and HCat using the HiveStorageHandler
> ------------------------------------------------------------------------
>
> Key: HIVE-4331
> URL: https://issues.apache.org/jira/browse/HIVE-4331
> Project: Hive
> Issue Type: Task
> Components: HCatalog
> Affects Versions: 0.11.0, 0.12.0
> Reporter: Ashutosh Chauhan
> Assignee: Viraj Bhat
> Attachments: HIVE4331_07-17.patch, StorageHandlerDesign_HIVE4331.pdf
>
>
> 1) Deprecate the HCatHBaseStorageHandler and "RevisionManager" from HCatalog.
> These will now continue to function but internally they will use the
> "DefaultStorageHandler" from Hive. They will be removed in future release of
> Hive.
> 2) Design a HivePassThroughFormat so that any new StorageHandler in Hive will
> bypass the HiveOutputFormat. We will use this class in Hive's
> "HBaseStorageHandler" instead of the "HiveHBaseTableOutputFormat".
> 3) Write new unit tests in the HCat's "storagehandler" so that systems such
> as Pig and Map Reduce can use the Hive's "HBaseStorageHandler" instead of the
> "HCatHBaseStorageHandler".
> 4) Make sure all the old and new unit tests pass without backward
> compatibility (except known issues as described in the Design Document).
> 5) Replace all instances of the HCat source code, which point to
> "HCatStorageHandler" to use the"HiveStorageHandler" including the
> "FosterStorageHandler".
> I have attached the design document for the same and will attach a patch to
> this Jira.
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