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Posted to issues@hive.apache.org by "Mithun Radhakrishnan (JIRA)" <ji...@apache.org> on 2017/09/28 18:14:00 UTC

[jira] [Assigned] (HIVE-12734) Remove redundancy in HiveConfs serialized to UDFContext

     [ https://issues.apache.org/jira/browse/HIVE-12734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Mithun Radhakrishnan reassigned HIVE-12734:
-------------------------------------------

    Assignee: Chris Drome  (was: Mithun Radhakrishnan)

> Remove redundancy in HiveConfs serialized to UDFContext
> -------------------------------------------------------
>
>                 Key: HIVE-12734
>                 URL: https://issues.apache.org/jira/browse/HIVE-12734
>             Project: Hive
>          Issue Type: Bug
>    Affects Versions: 1.2.1, 2.0.0, 2.2.0, 3.0.0
>            Reporter: Mithun Radhakrishnan
>            Assignee: Chris Drome
>         Attachments: HIVE-12734.1.patch
>
>
> {{HCatLoader}} lands up serializing one {{HiveConf}} instance per table-alias, to Pig's {{UDFContext}}. This lands up bloating the {{UDFContext}}.
> To reduce the footprint, it makes sense to serialize a default-constructed {{HiveConf}} once, and one "diff" per {{HCatLoader}}. This should reduce the time taken to kick off jobs from {{pig -useHCatalog}} scripts.
> (Note_to_self: YHIVE-540).



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