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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1623) Apply audience and stability annotations to classes in mapred package
Date Mon, 26 Apr 2010 04:57:34 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1623?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12860809#action_12860809
] 

Chris Douglas commented on MAPREDUCE-1623:
------------------------------------------

bq. Not really. All the classes in jobhistory package are not public, for example: JobHistory.java.
I think this package should be private and the necessary client side functionality should
be available to public from org.apache.hadoop.mapreduce package (does this need a separate
jira?).

If users want to write tools processing the job history, couldn't they use the classes in
this package?

> Apply audience and stability annotations to classes in mapred package
> ---------------------------------------------------------------------
>
>                 Key: MAPREDUCE-1623
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1623
>             Project: Hadoop Map/Reduce
>          Issue Type: Sub-task
>          Components: documentation
>            Reporter: Tom White
>            Assignee: Tom White
>         Attachments: M1623-1.patch, MAPREDUCE-1623.patch, MAPREDUCE-1623.patch, MAPREDUCE-1623.patch,
MAPREDUCE-1623.patch
>
>
> There are lots of implementation classes in org.apache.hadoop.mapred which makes it difficult
to see the user-level MapReduce API classes in the Javadoc. (See http://hadoop.apache.org/common/docs/r0.20.2/api/org/apache/hadoop/mapred/package-summary.html
for example.) By marking these implementation classes with the InterfaceAudience.Private annotation
we can exclude them from user Javadoc (using HADOOP-6658).
> Later work will move the implementation classes into o.a.h.mapreduce.server and related
packages (see MAPREDUCE-561), but applying the annotations is a good first step. 

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