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From "Lefty Leverenz (JIRA)" <>
Subject [jira] [Commented] (HIVE-16723) Enable configurable MetaStoreSchemaInfo
Date Wed, 24 May 2017 06:01:11 GMT


Lefty Leverenz commented on HIVE-16723:

Doc note:  This should be explained on the Hive Schema Tool wiki page, and **
should be documented in Configuration Properties.

* [Hive Schema Tool |]
* [Configuration Properties -- MetaStore |]

Added a TODOC3.0 label.

> Enable configurable MetaStoreSchemaInfo 
> ----------------------------------------
>                 Key: HIVE-16723
>                 URL:
>             Project: Hive
>          Issue Type: Improvement
>          Components: Metastore
>            Reporter: Vihang Karajgaonkar
>            Assignee: Vihang Karajgaonkar
>            Priority: Minor
>              Labels: TODOC3.0
>             Fix For: 3.0.0
>         Attachments: HIVE-16723.01.patch, HIVE-16723.02.patch, HIVE-16723.03.patch, HIVE-16723.04.patch
> {{MetaStoreSchemaInfo}} class is used by Schema tool to get the schema version information.
In addition to that schema tool invokes its init and upgrade methods to initialize and upgrade
the metastore schema. It is possible that there are minor schema changes in the metastore
schema which users have to maintain manually. We can potentially enhance schema tool to use
a custom MetaStoreSchemaInfo implementation which can be plugged in based on configuration
and schematool could run these customizations while running the upgrade and init scripts.

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