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https://issues.apache.org/jira/browse/MAPREDUCE-1065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12840594#action_12840594
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Amareshwari Sriramadasu commented on MAPREDUCE-1065:
----------------------------------------------------
Some comments:
* We should use scripts bin/hdfs for dfs commands, bin/mapred for MAPREDUCE
commands, instead of bin/hadoop script.
For ex:
The following change is looks wrong:
{code}
- <code>$ bin/hadoop dfs -ls /usr/joe/wordcount/input/</code><br/>
+ <code>$ bin/hadoop fs -ls /user/joe/wordcount/input/</code><br/>
{code}
It should changed as
{code}
- <code>$ bin/hadoop dfs -ls /usr/joe/wordcount/input/</code><br/>
+ <code>$ bin/hdfs dfs -ls /user/joe/wordcount/input/</code><br/>
{code}
* Output part files are named part-m/r-<id> in new api.
The following change should be modified to reflect the same.
{code}
- $ bin/hadoop dfs -cat /usr/joe/wordcount/output/part-00000
+ $ bin/hadoop fs -cat /user/joe/wordcount/output/part-00000
{code}
It should be changed to
{code}
- $ bin/hadoop dfs -cat /usr/joe/wordcount/output/part-00000
+ $ bin/hdfs dfs -cat /user/joe/wordcount/output/part-r-00000
{code}
* Minor - I guess we make sure lines are 80 characters long in documentation
also.
* Job.setNumMapTasks(int) is not linked to api doc.
> Modify the mapred tutorial documentation to use new mapreduce api.
> ------------------------------------------------------------------
>
> Key: MAPREDUCE-1065
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1065
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: documentation
> Affects Versions: 0.21.0
> Reporter: Amareshwari Sriramadasu
> Assignee: Aaron Kimball
> Priority: Blocker
> Fix For: 0.21.0
>
> Attachments: MAPREDUCE-1065.patch
>
>
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