Bug 1028016 – Very large sorts are inefficient

Bug 1028016 - Very large sorts are inefficient

Summary:	Very large sorts are inefficient

Status:	CLOSED CURRENTRELEASE

Aliases:	None

Product:	JBoss Data Virtualization 6
Classification:	JBoss
Component:	Teiid (Show other bugs)
Sub Component:
Version:	6.0.0
Hardware:	Unspecified Unspecified

Priority	unspecified Severity urgent
Target Milestone:	ER4
Target Release:	6.0
Assigned To:	Van Halbert
QA Contact:
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:
Blocks:
	Show dependency tree / graph

Reported:	2013-11-07 08:53 EST by Van Halbert
Modified:	2014-07-09 01:03 EDT (History)
CC List:	4 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	Users are finding that large sorts are inefficient. When the memory space needed for a sort is estimated to be above 2 GB, the expression used will overflow. This causes the batch size to be used as the intermediate sort buffer size, which for any high row count will lead to many passes.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2014-03-10 15:57:01 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
JBoss Issue Tracker	TEIID-2728	Major	Closed	Very large sorts are inefficient	2014-04-21 07:25:24 EDT

Groups: None (edit)

Comment 1 belong 2013-12-09 19:51:21 EST

Assuming this will be set to VERIFIED before GA - setting requires_doc_text- accordingly.

Comment 2 wgibson 2014-02-11 08:28:30 EST

Unit test: TestEnginePerformance.java

Comment 3 JBoss JIRA Server 2014-04-21 07:25:31 EDT

Steven Hawkins <shawkins@redhat.com> updated the status of jira TEIID-2728 to Closed

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