[jira] [Updated] (HIVE-4732) Reduce or eliminate the expensive Schema equals() check for AvroSerde

["Edward Capriolo (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HIVE-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Edward Capriolo updated HIVE-4732:
----------------------------------

    Status: Open  (was: Patch Available)

{code}
this.recordReaderID = UUID.randomUUID();
{code}
Random UUID does not guarantee no collisions. I believe using a TimeUUID is better
                
> 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, HIVE-4732.v1.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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