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https://issues.apache.org/jira/browse/HADOOP-11460?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14307399#comment-14307399
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Hudson commented on HADOOP-11460:
---------------------------------

FAILURE: Integrated in Hadoop-Mapreduce-trunk #2046 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/2046/])
HADOOP-11460. Deprecate shell vars (John Smith via aw) (aw: rev 
43d5caef5e63b3c96737cb642c1e8f31ec8c9a8c)
* hadoop-yarn-project/hadoop-yarn/bin/yarn
* hadoop-common-project/hadoop-kms/src/main/libexec/kms-config.sh
* hadoop-common-project/hadoop-common/src/main/bin/hadoop-functions.sh
* hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* hadoop-common-project/hadoop-kms/src/main/conf/kms-env.sh
* hadoop-yarn-project/hadoop-yarn/bin/stop-yarn.sh
* hadoop-mapreduce-project/conf/mapred-env.sh
* hadoop-hdfs-project/hadoop-hdfs/src/main/bin/hdfs-config.sh
* hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh
* hadoop-mapreduce-project/bin/mapred-config.sh
* hadoop-yarn-project/hadoop-yarn/bin/start-yarn.sh
* hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* hadoop-common-project/hadoop-common/CHANGES.txt


> Deprecate shell vars
> --------------------
>
>                 Key: HADOOP-11460
>                 URL: https://issues.apache.org/jira/browse/HADOOP-11460
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: scripts
>    Affects Versions: 3.0.0
>            Reporter: Allen Wittenauer
>            Assignee: John Smith
>              Labels: scripts, shell
>             Fix For: 3.0.0
>
>         Attachments: HADOOP-11460-00.patch, HADOOP-11460-01.patch, 
> HADOOP-11460-02.patch, HADOOP-11460-03.patch, HADOOP-11460-04.patch
>
>
> It is a very common shell pattern in 3.x to effectively replace sub-project 
> specific vars with generics.  We should have a function that does this 
> replacement and provides a warning to the end user that the old shell var is 
> deprecated.  Additionally, we should use this shell function to deprecate the 
> shell vars that are holdovers already.



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