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From "Lefty Leverenz (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-5424) Document schema tool usage
Date Wed, 09 Oct 2013 09:41:42 GMT

    [ https://issues.apache.org/jira/browse/HIVE-5424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13790193#comment-13790193
] 

Lefty Leverenz commented on HIVE-5424:
--------------------------------------

Added hive.metastore.schema.verification to the Configuration doc at the end of the [MetaStore
section|https://cwiki.apache.org/confluence/display/Hive/Configuration+Properties#ConfigurationProperties-MetaStore]
and revised the description of datanucleus.autoCreateSchema, but didn't find fixedDataStore
for datanucleus. 

Also, I'm not sure I got the default right -- is hive.metastore.schema.verification false
or true by default?  The new wikidoc implies it's true by default, and javadoc in the patch
says "(Default)" in the explanation of true but gives false as the value:

<property>
  <name>hive.metastore.schema.verification</name>
  <value>false</value>
   <description>
   Enforce metastore schema version consistency.
   True: Verify that version information stored in metastore matches with one from Hive jars.
 Also disable automatic schema migration attempt. Users are required to manully migrate schema
after Hive upgrade which ensures proper metastore schema migration. (Default)
   False: Warn if the version information stored in metastore doesn't match with one from
in Hive jars.
   </description>
</property>

So please correct the Configuration doc if it ought to say true by default, because I left
it as false.  And if there's another config property called datanucleus.fixedDataStore, please
add it to the doc.

> Document schema tool usage
> --------------------------
>
>                 Key: HIVE-5424
>                 URL: https://issues.apache.org/jira/browse/HIVE-5424
>             Project: Hive
>          Issue Type: Test
>          Components: Documentation, Metastore
>    Affects Versions: 0.12.0, 0.13.0
>            Reporter: Prasad Mujumdar
>            Assignee: Prasad Mujumdar
>
> Document the tool usage details



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