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From "Ahmed Radwan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8780) Update DeprecatedProperties apt file
Date Mon, 10 Sep 2012 18:21:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8780?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13452272#comment-13452272
] 

Ahmed Radwan commented on HADOOP-8780:
--------------------------------------

Many thanks Tom for the review! I have looked at why these two properties were dropped. This
was a result of MAPREDUCE-4493 changes:

In ConfigUtil.java:

{code}
-    Configuration.addDeprecation("mapred.create.symlink", 
-      new String[] {MRJobConfig.CACHE_SYMLINK});
{code}

And then the doc was added to DeprecatedProperties.apt.vm:

{code}
-|mapred.create.symlink | mapreduce.job.cache.symlink.create
+|mapred.create.symlink | NONE - symlinking is always on
+*---+---+
+|mapreduce.job.cache.symlink.create | NONE - symlinking is always on
{code}

This is why these two properties were automatically dropped. I think dropping them is fine
though. This document lists the deprecated properties and their replacements but these two
properties are not deprecated, they are always on. So this apt document may not be the place
to convey that. What do you think? I am also CCing Bobby to see if he has a different opinion.
Any thoughts?
                
> Update DeprecatedProperties apt file
> ------------------------------------
>
>                 Key: HADOOP-8780
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8780
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Ahmed Radwan
>            Assignee: Ahmed Radwan
>         Attachments: HADOOP-8780.patch
>
>
> The current list of deprecated properties is not up-to-date. I'll will upload a patch
momentarily.

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