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From "Phabricator (Commented) (JIRA)" <>
Subject [jira] [Commented] (HIVE-2720) Merge MetaStoreListener and HiveMetaHook interfaces
Date Fri, 20 Jan 2012 00:59:40 GMT


Phabricator commented on HIVE-2720:

cwsteinbach has commented on the revision "HIVE-2720 [jira] Merge MetaStoreListener and HiveMetaHook

  What effect will these changes have on StorageHandlers that were compiled against older
versions of Hive. Will they still work, or will they have to be recompiled?


> Merge MetaStoreListener and HiveMetaHook interfaces
> ---------------------------------------------------
>                 Key: HIVE-2720
>                 URL:
>             Project: Hive
>          Issue Type: Sub-task
>          Components: JDBC, Metastore, ODBC, Security
>            Reporter: Enis Soztutar
>            Assignee: Enis Soztutar
>         Attachments: HIVE-2720.D1299.1.patch, HIVE-2720.D1299.2.patch, HIVE-2720.D1299.3.patch
> MetaStoreListener and HiveMetaHook both serve as a notification mechanism for metastore-related
events. The former is used by hcat and the latter is by the hbase-storage handler, and invoked
by the client. 
> I propose to merge these interfaces, and extend the MetaStoreListener, to add most of
the on- and pre- methods at the Thrift interface. This way, extending metastore will be easier,
and validation, storage-driver notification, and enforcement can be delegated to individual
listeners. Besides, more functionality can be plugged-in by Hcat at this level. 

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