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From "Mohammad Kamrul Islam (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-4732) Reduce or eliminate the expensive Schema equals() check for AvroSerde
Date Thu, 11 Jul 2013 21:59:49 GMT

    [ https://issues.apache.org/jira/browse/HIVE-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13706299#comment-13706299
] 

Mohammad Kamrul Islam commented on HIVE-4732:
---------------------------------------------

Thanks Edward for the comments.
We are now trying to take a different approach to address the same issue.
A new patch is coming soon.
                
> Reduce or eliminate the expensive Schema equals() check for AvroSerde
> ---------------------------------------------------------------------
>
>                 Key: HIVE-4732
>                 URL: https://issues.apache.org/jira/browse/HIVE-4732
>             Project: Hive
>          Issue Type: Improvement
>          Components: Serializers/Deserializers
>            Reporter: Mark Wagner
>            Assignee: Mohammad Kamrul Islam
>         Attachments: HIVE-4732.1.patch
>
>
> The AvroSerde spends a significant amount of time checking schema equality. Changing
to compare hashcodes (which can be computed once then reused) will improve performance.

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