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https://issues.apache.org/jira/browse/HIVE-4732?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mark Wagner updated HIVE-4732:
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Fix Version/s: 0.12.0
0.11.1
Status: Patch Available (was: Open)
This patch improves per record read and deserialization time by ~40% in my
tests. Since this is a small and useful change, I'd propose that it go into
branch-.11 as well as trunk.
> Speed up AvroSerde by checking hashcodes instead of equality
> ------------------------------------------------------------
>
> Key: HIVE-4732
> URL: https://issues.apache.org/jira/browse/HIVE-4732
> Project: Hive
> Issue Type: Improvement
> Components: Serializers/Deserializers
> Affects Versions: 0.11.0, 0.12.0
> Reporter: Mark Wagner
> Assignee: Mark Wagner
> Fix For: 0.11.1, 0.12.0
>
> 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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