Improve documentation about the Task Execution Environment in the Map-Reduce tutorial

• Key: HADOOP-3096
• Type: Improvement
• Status: Closed
• Resolution: Fixed
• Priority: Blocker
• Assignee: Amareshwari Sriramadasu
• Reporter: Arun C Murthy
• Component/s: documentation
• Affects Version/s: 0.17.0
• Fix Version/s: 0.18.0

Description

We should improve the 'Task Execution & Environment' section in the Map-Reduce tutorial with information missing from http://wiki.apache.org/hadoop/TaskExecutionEnvironment.

Comments

[Amareshwari Sriramadasu]

+1

http://wiki.apache.org/hadoop/TaskExecutionEnvironment needs to be updated with current task directory structure. (post HADOOP-2116)

[Amareshwari Sriramadasu]

I updated wiki with current task directory structure @ http://wiki.apache.org/hadoop/TaskExecutionEnvironment

[Owen O'Malley]

The wiki should probably just point to the forrest documentation.

[Amareshwari Sriramadasu]

Here is patch improving documentation for Task Execution Environment in mapred_tutotial.xml, with the information at http://wiki.apache.org/hadoop/TaskExecutionEnvironment

[Hadoop QA]

-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12383739/patch-3096.txt
against trunk revision 666056.

+1 @author. The patch does not contain any @author tags.

-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no tests are needed for this patch.

+1 javadoc. The javadoc tool did not generate any warning messages.

+1 javac. The applied patch does not increase the total number of javac compiler warnings.

+1 findbugs. The patch does not introduce any new Findbugs warnings.

+1 release audit. The applied patch does not increase the total number of release audit warnings.

+1 core tests. The patch passed core unit tests.

+1 contrib tests. The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2631/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2631/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2631/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2631/console

This message is automatically generated.

[Amareshwari Sriramadasu]

Offline comments from Arun, to improve documentation about task tracker directory structure

[Amareshwari Sriramadasu]

Patch has improved documentation for task tracker's directory structure.

[Hadoop QA]

-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12383805/patch-3096.txt
against trunk revision 666524.

+1 @author. The patch does not contain any @author tags.

-1 tests included. The patch doesn't appear to include any new or modified tests.
Please justify why no tests are needed for this patch.

+1 javadoc. The javadoc tool did not generate any warning messages.

+1 javac. The applied patch does not increase the total number of javac compiler warnings.

+1 findbugs. The patch does not introduce any new Findbugs warnings.

+1 release audit. The applied patch does not increase the total number of release audit warnings.

+1 core tests. The patch passed core unit tests.

+1 contrib tests. The patch passed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2638/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2638/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2638/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Hadoop-Patch/2638/console

This message is automatically generated.

[Devaraj Das]

I just committed this. Thanks, Amareshwari!
Please remove the duplicate information from the wiki (just let the link to the forrest docs be there). It's hard to maintain the same information in two places.

[Hudson]

Integrated in Hadoop-trunk #520 (See http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/520/)