[jira] [Comment Edited] (HIVE-15038) Reuse OrcTail in OrcEncodedDataReader::ReaderOptions in Llap

["Rajesh Balamohan (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-15038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15642890#comment-15642890 ] 

Rajesh Balamohan edited comment on HIVE-15038 at 11/7/16 2:43 AM:
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Thanks [~sershe]. Test failures are unrelated to this patch.

Separate bugs are already filed for these test failures already. (Ref: HIVE-15116, HIVE-15115, HIVE-15084, HIVE-14937)


was (Author: rajesh.balamohan):
Thanks [~sershe]. Test failures are unrelated to this patch.

> 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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