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Posted to issues@drill.apache.org by "Paul Rogers (JIRA)" <ji...@apache.org> on 2017/07/11 20:29:00 UTC
[jira] [Updated] (DRILL-5601) Rollup of External Sort memory
management fixes
[ https://issues.apache.org/jira/browse/DRILL-5601?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Paul Rogers updated DRILL-5601:
-------------------------------
Fix Version/s: (was: 1.11.0)
1.12.0
> Rollup of External Sort memory management fixes
> -----------------------------------------------
>
> Key: DRILL-5601
> URL: https://issues.apache.org/jira/browse/DRILL-5601
> Project: Apache Drill
> Issue Type: Task
> Affects Versions: 1.11.0
> Reporter: Paul Rogers
> Assignee: Paul Rogers
> Fix For: 1.12.0
>
>
> Rollup of a set of specific JIRA entries that all relate to the very difficult problem of managing memory within Drill in order for the external sort to stay within a memory budget. In general, the fixes relate to better estimating memory used by the three ways that Drill allocates vector memory (see DRILL-5522) and to predicting the size of vectors that the sort will create, to avoid repeated realloc-copy cycles (see DRILL-5594).
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