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From "jiraposter@reviews.apache.org (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-2192) Stats table schema incompatible after HIVE-2185
Date Fri, 03 Jun 2011 18:25:47 GMT

    [ https://issues.apache.org/jira/browse/HIVE-2192?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13043940#comment-13043940
] 

jiraposter@reviews.apache.org commented on HIVE-2192:
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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/851/
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Review request for hive, Hairong Kuang and Ning Zhang.


Summary
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HIVE-2185 introduces new statistics collected by StatsPublisher, which causes a change in
the schema of the table used for collecting intermediate statistics by JDBCStatsPublisher.
This patch changes the table name, to avoid conflicts with the previous version.

Also this patch removes an empty JUnit java file.


This addresses bug HIVE-2192.
    https://issues.apache.org/jira/browse/HIVE-2192


Diffs
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  trunk/ql/src/java/org/apache/hadoop/hive/ql/stats/jdbc/JDBCStatsSetupConstants.java 1131108


Diff: https://reviews.apache.org/r/851/diff


Testing
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JDBCStatsPublisherEnhanced JUnit test.


Thanks,

Tomasz



> Stats table schema incompatible after HIVE-2185
> -----------------------------------------------
>
>                 Key: HIVE-2192
>                 URL: https://issues.apache.org/jira/browse/HIVE-2192
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Ning Zhang
>            Assignee: Tomasz Nykiel
>         Attachments: HIVE-2192.patch
>
>
> HIVE-2185 introduced a new column in the intermediate stats table. This introduces incompatibility
between old and new branches (multiple branches could be deployed in production): the old
branch will not work with the new schema, and the new branch will not work with the old schema.
A solution would be to rename the stats table name (requires code change) or use a different
database name (requires hive-default.xml conf change).

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