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From "Namit Jain (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HIVE-3750) JDBCStatsPublisher fails when ID length exceeds length of ID column
Date Tue, 04 Dec 2012 09:46:58 GMT

     [ https://issues.apache.org/jira/browse/HIVE-3750?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Namit Jain updated HIVE-3750:
-----------------------------

      Resolution: Fixed
    Hadoop Flags: Reviewed
          Status: Resolved  (was: Patch Available)

Committed. Thanks Kevin
                
> JDBCStatsPublisher fails when ID length exceeds length of ID column
> -------------------------------------------------------------------
>
>                 Key: HIVE-3750
>                 URL: https://issues.apache.org/jira/browse/HIVE-3750
>             Project: Hive
>          Issue Type: Bug
>          Components: Statistics
>    Affects Versions: 0.11
>            Reporter: Kevin Wilfong
>            Assignee: Kevin Wilfong
>         Attachments: HIVE-3750.1.patch.txt
>
>
> When the length of the ID field passed to JDBCStatsPublisher exceeds the length of the
column in the table (currently 255 characters) stats collection fails.  This causes the entire
query to fail when hive.stats.reliable is set to true.
> One way to prevent this would be to calculate a deterministic, very low collision hash
of the ID prefix used for aggregation and use that when the length of the ID is too long.

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