[HADOOP-6328] Hadoop 0.20 Docs - backport changes for streaming and m/r tutorial docs

• Type: Task
• Status: Resolved
• Priority: Blocker
• Resolution: Won't Fix
• Fix Version/s: 0.20.2
• Component/s: documentation
• Assignee: Corinne Chandel
• Reporter: Corinne Chandel
• Created: 22/Oct/09 17:53
• Updated: 02/Jul/10 04:46
• Resolved: 19/Feb/10 07:06

Description

Doc changes added to the Hadoop/mapreduce/trunk (for Hadoop 0.21 release) need to be backported to Hadoop-0.20 branch (for Hadoop 0.20.2 release).

Doc files affected:
> streaming.xml
> mapred_tutorial.xml

Changes include:
1. During the execution of a streaming job, the names of the "mapred" parameters are transformed. The dots ( . ) become underscores ( _ ). – (affects streaming doc and m/r tutorial doc)

2. For -files and -archives options, Hadoop now creates symlink with same name as file (user-defined symlinks, #mysymlink, currently not supported) – (affects streaming doc)

3. Streaming supports streaming command options and generic command options. Generic options must be placed before streaming options, otherwise command fails. – (affects streaming doc)