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https://issues.apache.org/jira/browse/HIVE-23158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17079336#comment-17079336
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Hive QA commented on HIVE-23158:
--------------------------------



Here are the results of testing the latest attachment:
https://issues.apache.org/jira/secure/attachment/12999358/HIVE-23158.01.patch

{color:green}SUCCESS:{color} +1 due to 2 test(s) being added or modified.

{color:green}SUCCESS:{color} +1 due to 18208 tests passed

Test results: 
https://builds.apache.org/job/PreCommit-HIVE-Build/21530/testReport
Console output: https://builds.apache.org/job/PreCommit-HIVE-Build/21530/console
Test logs: http://104.198.109.242/logs/PreCommit-HIVE-Build-21530/

Messages:
{noformat}
Executing org.apache.hive.ptest.execution.TestCheckPhase
Executing org.apache.hive.ptest.execution.PrepPhase
Executing org.apache.hive.ptest.execution.YetusPhase
Executing org.apache.hive.ptest.execution.ExecutionPhase
Executing org.apache.hive.ptest.execution.ReportingPhase
{noformat}

This message is automatically generated.

ATTACHMENT ID: 12999358 - PreCommit-HIVE-Build

> Optimize S3A recordReader policy for Random IO formats
> ------------------------------------------------------
>
>                 Key: HIVE-23158
>                 URL: https://issues.apache.org/jira/browse/HIVE-23158
>             Project: Hive
>          Issue Type: Bug
>            Reporter: Panagiotis Garefalakis
>            Assignee: Panagiotis Garefalakis
>            Priority: Trivial
>              Labels: pull-request-available
>         Attachments: HIVE-23158.01.patch
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> S3A filesystem client (inherited by Hadoop) supports the notion of input 
> policies.
>  These policies tune the behaviour of HTTP requests that are used for reading 
> different filetypes such as TEXT or ORC.
> For formats such as ORC and Parquet that do a lot of seek operations, there 
> is an optimized RANDOM mode that reads files only partially instead of fully 
> (default).
> I am suggesting to add some extra logic as part of HiveInputFormat to make 
> sure we optimize RecordReader requests for random IO when data is stored on 
> S3A using formats such as ORC or Parquet.



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