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https://issues.apache.org/jira/browse/HADOOP-13335?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15366571#comment-15366571
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Siddharth Seth commented on HADOOP-13335:
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bq. It's not and I'm still not sure why you seem to insist this is true when
both Vinod and I have said that there isn't any intent on it going away anytime
remotely soon.
Anytime soon - no. From your comments, it does look like at least you think
this is a candidate for 4.x removal.
In terms of Hive (for 2.x) - yes, an unset works - for the most part anyway.
However, this warning is not required - and should not be seen by other systems
/ users. Unsetting variables is a way to suppress the message, however it isn't
an optimal or efficient way to do this.
Is this deprecation, what's the public API?
There's multiple options here.
1. Get rid of the warning altogether - which I think is the correct thing to
do. (Haven't heard a good reason to keep it)
2. Add a variable to deprecate this specific warning.
3. Add an option to deprecate all such warnings (and apparently there's a lot
of these in trunk).
> Add an option to suppress the 'use yarn jar' warning or remove it
> -----------------------------------------------------------------
>
> Key: HADOOP-13335
> URL: https://issues.apache.org/jira/browse/HADOOP-13335
> Project: Hadoop Common
> Issue Type: Improvement
> Affects Versions: 2.7.0
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Attachments: HADOOP-13335.01.patch, HADOOP-13335.02.patch,
> HADOOP-13335.02_branch-2.patch, HADOOP-13335.03.patch,
> HADOOP-13335.03_branch-2.patch, HADOOP-13335.04.patch
>
>
> https://issues.apache.org/jira/browse/HADOOP-11257 added a 'deprecation'
> warning for 'hadoop jar'.
> hadoop jar is used for a lot more that starting jobs. As an example - hive
> uses it to start all it's services (HiveServer2, the hive client, beeline
> etc).
> Using 'yarn jar' for to start these services / tools doesn't make a lot of
> sense - there's no relation to yarn other than requiring the classpath to
> include yarn libraries.
> I'd propose reverting the changes where this message is printed if YARN
> variables are set (leave it in the help message), or adding a mechanism which
> would allow users to suppress this WARNING.
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