Bug 1001413

Summary:	MapReduce documentation
Product:	[JBoss] JBoss Data Grid 6	Reporter:	Josh West <jowest>
Component:	Documentation	Assignee:	gsheldon
Status:	CLOSED CURRENTRELEASE	QA Contact:	Josh West <jowest>
Severity:	unspecified	Docs Contact:
Priority:	unspecified
Version:	6.1.0	CC:	dberinde, jdg-bugs
Target Milestone:	DR4
Target Release:	6.2.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:	Build: CSProcessor Builder Version 1.12 Build Name: 14115, Developer Guide-6.1-2 Build Date: 06-08-2013 10:08:07 Topic ID: 13351-381533 [Specified]
Last Closed:	2014-01-16 00:02:13 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:

Description Josh West 2013-08-27 02:51:29 UTC

Title: About MapReduce

Describe the issue:

Section 3.2. appears to be incorrect - see starred text:

3.b. If a Combiner has been specified with **task.combinedWith(Reducer)**, the Combiner is called on the Mapper results and the combiner's results are retured to the master node or inserted in the intermediary cache.

Suggestions for improvement:



Additional information:

Comment 2 gsheldon 2013-08-29 02:27:06 UTC

Adding NeedInfo for Dan.

Comment 3 Dan Berindei 2013-08-30 09:34:34 UTC

I agree that the section is a bit confusing, Combiner is capitalized so users might expect it to be an actual interface. But the combiner uses the Reducer interface, so task.combinedWith() has a Reducer parameter. Perhaps we should change **task.combinedWith(Reducer)** to **task.combinedWith(combiner)**, without a capital C?

Comment 6 Misha H. Ali 2014-01-16 00:02:13 UTC

The fix for this bug is now generally released and available here:

https://access.redhat.com/site/documentation/en-US/Red_Hat_JBoss_Data_Grid/6.2/index.html