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From "Robert Hou (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DRILL-5885) Drill consumes 2x memory when sorting and reading a spilled batch from disk.
Date Tue, 17 Oct 2017 22:56:00 GMT

    [ https://issues.apache.org/jira/browse/DRILL-5885?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16208543#comment-16208543
] 

Robert Hou commented on DRILL-5885:
-----------------------------------

Refer to DRILL-5670 for some background.

> Drill consumes 2x memory when sorting and reading a spilled batch from disk.
> ----------------------------------------------------------------------------
>
>                 Key: DRILL-5885
>                 URL: https://issues.apache.org/jira/browse/DRILL-5885
>             Project: Apache Drill
>          Issue Type: Bug
>          Components: Execution - Relational Operators
>    Affects Versions: 1.11.0
>            Reporter: Robert Hou
>
> The query is:
> {noformat}
> select count(*) from (select * from dfs.`/drill/testdata/resource-manager/3500cols.tbl`
order by columns[450],columns[330],columns[230],columns[220],columns[110],columns[90],columns[80],columns[70],columns[40],columns[10],columns[20],columns[30],columns[40],columns[50],
columns[454],columns[413],columns[940],columns[834],columns[73],columns[140],columns[104],columns[2222],columns[30],columns[2420],columns[1520],
columns[1410], columns[1110],columns[1290],columns[2380],columns[705],columns[45],columns[1054],columns[2430],columns[420],columns[404],columns[3350],
columns[3333],columns[153],columns[356],columns[84],columns[745],columns[1450],columns[103],columns[2065],columns[343],columns[3420],columns[530],
columns[3210] ) d where d.col433 = 'sjka skjf';
> {noformat}



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