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From "Sergey Shelukhin (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-15038) Reuse OrcTail in OrcEncodedDataReader::ReaderOptions in Llap
Date Mon, 24 Oct 2016 18:59:58 GMT

    [ https://issues.apache.org/jira/browse/HIVE-15038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15602886#comment-15602886
] 

Sergey Shelukhin commented on HIVE-15038:
-----------------------------------------

+1 pending tests

> Reuse OrcTail in OrcEncodedDataReader::ReaderOptions in Llap
> ------------------------------------------------------------
>
>                 Key: HIVE-15038
>                 URL: https://issues.apache.org/jira/browse/HIVE-15038
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Rajesh Balamohan
>            Assignee: Rajesh Balamohan
>            Priority: Minor
>         Attachments: HIVE-15038.1.patch, HIVE-15038.2.patch
>
>
> When  {{hive.orc.splits.include.file.footer}} is enabled, OrcTail (if available) can
be made use of in OrcEncodedDataReader. This would reduce file look up calls (expensive in
cloud storage systems like S3) and , eliminate footer reading.



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