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Posted to issues@hive.apache.org by "Mithun Radhakrishnan (JIRA)" <ji...@apache.org> on 2017/10/02 20:58:01 UTC
[jira] [Assigned] (HIVE-17669) Cache to optimize SearchArgument
deserialization
[ https://issues.apache.org/jira/browse/HIVE-17669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mithun Radhakrishnan reassigned HIVE-17669:
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> Cache to optimize SearchArgument deserialization
> ------------------------------------------------
>
> Key: HIVE-17669
> URL: https://issues.apache.org/jira/browse/HIVE-17669
> Project: Hive
> Issue Type: Improvement
> Components: ORC, Query Processor
> Affects Versions: 2.2.0, 3.0.0
> Reporter: Mithun Radhakrishnan
> Assignee: Chris Drome
>
> And another, from [~selinazh] and [~cdrome]. (YHIVE-927)
> When a mapper needs to process multiple ORC files, it might land up having use essentially the same {{SearchArgument}} over several files. It would be good not to have to deserialize from string, over and over again. Caching the object against the string-form should speed things up.
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