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From "jiraposter@reviews.apache.org (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2338) Alter table always throws an unhelpful error on failure
Date Wed, 03 Aug 2011 23:59:29 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13079130#comment-13079130
] 

jiraposter@reviews.apache.org commented on HIVE-2338:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/1276/
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(Updated 2011-08-03 23:59:06.774216)


Review request for hive and Paul Yang.


Changes
-------

-remove unecessary comment


Summary
-------

Every failure in an alter table function always return a MetaException. When altering tables
and catching exceptions, we throw a MetaException in the "finally" part of a try-catch-finally
block, which overrides any other exceptions thrown.

This patch moves the code to throw an error on a commit failure outside of the try-catch-finally
block.  So any errors within the try block are thrown properly.  Only when success == false
will we throw a MetaException.


This addresses bug HIVE-2338.
    https://issues.apache.org/jira/browse/HIVE-2338


Diffs (updated)
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  trunk/metastore/src/java/org/apache/hadoop/hive/metastore/HiveAlterHandler.java 1152020


Diff: https://reviews.apache.org/r/1276/diff


Testing
-------

Tested failing alter table metastore commands; they threw InvalidOperationExceptions as they
should, instead of meaningless MetaExceptions.


Thanks,

Sohan



> Alter table always throws an unhelpful error on failure
> -------------------------------------------------------
>
>                 Key: HIVE-2338
>                 URL: https://issues.apache.org/jira/browse/HIVE-2338
>             Project: Hive
>          Issue Type: Bug
>          Components: Metastore
>            Reporter: Sohan Jain
>            Assignee: Sohan Jain
>            Priority: Minor
>         Attachments: HIVE-2338.1.patch, HIVE-2338.2.patch
>
>
> Every failure in an alter table function always return a MetaException. When altering
tables and catching exceptions, we throw a MetaException in the "finally" part of a try-catch-finally
block, which overrides any other exceptions thrown.

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