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From "Mithun Radhakrishnan (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-17669) Cache to optimize SearchArgument deserialization
Date Tue, 03 Oct 2017 23:29:00 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17669?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Mithun Radhakrishnan reassigned HIVE-17669:
-------------------------------------------

    Assignee: Mithun Radhakrishnan  (was: Chris Drome)

> 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: Mithun Radhakrishnan
>         Attachments: HIVE-17699.1.patch, HIVE-17699.2.patch
>
>
> 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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