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From "Paul Rogers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5146) Unnecessary spilling to disk by sort when we only have 5000 rows with one column
Date Wed, 28 Jun 2017 23:16:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5146?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16067434#comment-16067434
] 

Paul Rogers commented on DRILL-5146:
------------------------------------

This case works with the code in DRILL-5601.

{code}
Results: 5,001 records, 2 batches, 104,034 ms
{code}

> Unnecessary spilling to disk by sort when we only have 5000 rows with one column
> --------------------------------------------------------------------------------
>
>                 Key: DRILL-5146
>                 URL: https://issues.apache.org/jira/browse/DRILL-5146
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Relational Operators
>            Reporter: Rahul Challapalli
>            Assignee: Paul Rogers
>         Attachments: 27a52efb-0ce6-f2ad-7216-aef007926649.sys.drill, data.tgz, spill.log
>
>
> git.commit.id.abbrev=cf2b7c7
> The below query spills to disk for the sort. The dataset contains 5000 files and each
file contains a single record. 
> {code}
> select * from dfs.`/drill/testdata/resource-manager/5000files/text` order by columns[1];
> {code}
> Enviironment :
> {code}
> DRILL_MAX_DIRECT_MEMORY="16G"
> DRILL_MAX_HEAP="4G"
> {code}
> I attached the dataset, logs and the profile



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