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Posted to yarn-issues@hadoop.apache.org by "Arun C Murthy (JIRA)" <ji...@apache.org> on 2012/08/07 03:51:02 UTC

[jira] [Created] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Arun C Murthy created YARN-9:
--------------------------------

             Summary: Rename YARN_HOME to HADOOP_YARN_HOME
                 Key: YARN-9
                 URL: https://issues.apache.org/jira/browse/YARN-9
             Project: Hadoop YARN
          Issue Type: Improvement
            Reporter: Arun C Murthy


We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Alejandro Abdelnur (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454637#comment-13454637 ] 

Alejandro Abdelnur commented on YARN-9:
---------------------------------------

I'm getting CNF exceptions, I'll check a few other settings in my ENV to verify exactly why.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454648#comment-13454648 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

bq. I'm getting CNF exceptions, I'll check a few other settings in my ENV to verify exactly why.
Please check if MR jobs are working fine. Also do apply the patch at HADOOP-8794, it perhaps misses a few more changes but has the bare minimum changes needed already.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Alejandro Abdelnur (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454321#comment-13454321 ] 

Alejandro Abdelnur commented on YARN-9:
---------------------------------------

shouldn't we still handle YARN_HOME as deprecated?
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Robert Joseph Evans (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454936#comment-13454936 ] 

Robert Joseph Evans commented on YARN-9:
----------------------------------------

{quote}Yes, you are right. But I don't think we need to support YARN_HOME since, like Hitesh mentioned, none of the releases so far are deemed stable.{quote}

So does that mean that we need to merge this into branch-0.23?  Because I plan on beating on 0.23 until it is "deemed stable" and it does not have this non-backwards compatible change in it.  I get that you want to clean things up and I am OK with that.  But at some point we need to start getting very serious about maintaining backwards compatibility even on the small things.  
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454440#comment-13454440 ] 

Hadoop QA commented on YARN-9:
------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12544867/YARN-9-20120912.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/36//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/36//console

This message is automatically generated.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463774#comment-13463774 ] 

Hudson commented on YARN-9:
---------------------------

Integrated in Hadoop-Hdfs-trunk #1177 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1177/])
    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. Contributed by Vinod K V. (Revision 1390218)

     Result = SUCCESS
acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390218
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemons.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/SingleCluster.apt.vm

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Alejandro Abdelnur (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454619#comment-13454619 ] 

Alejandro Abdelnur commented on YARN-9:
---------------------------------------

My bad on the +1. I think we should revert, there are several place where it has not been updated. Also there are other YARN_ env vars, they should all be renamed to HADOOP_YARN_. Plus, with the patch, I'm getting failures with custom AMs, I believe it is due to the changes not being through out the code/scripts/config files.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hemanth Yamijala (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461623#comment-13461623 ] 

Hemanth Yamijala commented on YARN-9:
-------------------------------------

Vinod, verified the changes in YARN and Common projects. Also checked if there are any leftover occurrences of YARN_HOME. Both of these look fine to me. So +1

The changes in MAPREDUCE-4649 look more involved. Will probably take more time or a more knowledgeable person :-) to review that.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454635#comment-13454635 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

Tx for the reviews, Hemanth and Alejandro.

I split the common changes - see HADOOP-8794. Will update that patch with any missing updates.

bq. These three seem to be just documentation updates:
Will fix the doc updates.

Will fix the other stuff too, this was the bare minimum I needed to make the jobs work.

bq. Also there are other YARN_ env vars, they should all be renamed to HADOOP_YARN_.
I wanted to do that separately, will revisit this depending on the final size of this patch.

bq. I'm getting failures with custom AMs, I believe it is due to the changes not being through out the code/scripts/config files.
Distributed-shell and MR jobs are working for me. Any peculiarities in your custom AMs?
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hadoop QA (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461517#comment-13461517 ] 

Hadoop QA commented on YARN-9:
------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12546224/YARN-9-20120923.txt
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    -1 tests included.  The patch doesn't appear to include any new or modified tests.
                        Please justify why no new tests are needed for this patch.
                        Also please list what manual steps were performed to verify this patch.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site.

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/47//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/47//console

This message is automatically generated.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463423#comment-13463423 ] 

Hudson commented on YARN-9:
---------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #2836 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/2836/])
    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. Contributed by Vinod K V. (Revision 1390218)

     Result = SUCCESS
acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390218
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemons.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/SingleCluster.apt.vm

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463458#comment-13463458 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

Tx for the review and verification, Arun!
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Assigned] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli reassigned YARN-9:
------------------------------------------

    Assignee: Vinod Kumar Vavilapalli

I am fixing this, better sooner than later.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Updated] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated YARN-9:
---------------------------------------

    Attachment: YARN-9-20120912.txt

Simple find and replace.

Tested this by bringing up a single node YARN cluster and verified by running the dist-shell app successfully.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Roman Shaposhnik (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454338#comment-13454338 ] 

Roman Shaposhnik commented on YARN-9:
-------------------------------------

FYI: Bigtop will have to adapt to this change, but I'm +/-0 on whether YARN_HOME needs to be supported. I suppose some existing users might have it hardcoded.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463350#comment-13463350 ] 

Arun C Murthy commented on YARN-9:
----------------------------------

+1 tested on both single-node (non-secure) and 5 node secure clusters. I'm committing this.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463429#comment-13463429 ] 

Hudson commented on YARN-9:
---------------------------

Integrated in Hadoop-Common-trunk-Commit #2773 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2773/])
    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. Contributed by Vinod K V. (Revision 1390218)

     Result = SUCCESS
acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390218
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemons.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/SingleCluster.apt.vm

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463419#comment-13463419 ] 

Hudson commented on YARN-9:
---------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #2795 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/2795/])
    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. Contributed by Vinod K V. (Revision 1390218)

     Result = FAILURE
acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390218
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemons.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/SingleCluster.apt.vm

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hemanth Yamijala (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454609#comment-13454609 ] 

Hemanth Yamijala commented on YARN-9:
-------------------------------------

Hi Vinod,

Couple of places still seem to have YARN_HOME. Should these be changed too ?

./hadoop-common-project/hadoop-common/src/main/bin/hadoop-config.sh
./hadoop-common-project/hadoop-common/src/main/bin/start-all.sh
./hadoop-mapreduce-project/bin/mr-jobhistory-daemon.sh (This, I think, is being addressed by MAPREDUCE-4649)
./hadoop-mapreduce-project/INSTALL (looks like documentation, and possibly needs to be changed to HADOOP_MAPRED_HOME ?)

These three seem to be just documentation updates:
./hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
./hadoop-yarn-project/hadoop-yarn/bin/yarn
./hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh

./hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java (I think the Enum name can be changed to be consistent with the actual value)
./hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
./hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml (default exported values)
./hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461511#comment-13461511 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

bq. So does that mean that we need to merge this into branch-0.23? Because I plan on beating on 0.23 until it is "deemed stable" and it does not have this non-backwards compatible change in it.
Yes Bobby, that would be better. I'd favor that.

bq.  But at some point we need to start getting very serious about maintaining backwards compatibility even on the small things. 
Agreed. All the more reasons, we should fix incompatible changes which we need as early as possible. Arguably, this change can be made compatible, but I believe will only add cruft given we haven't gone beyond alpha-level stability.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463206#comment-13463206 ] 

Arun C Murthy commented on YARN-9:
----------------------------------

The three patches look fine, I'm testing them on a cluster and I'll commit after. 
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Comment Edited] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Alejandro Abdelnur (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454619#comment-13454619 ] 

Alejandro Abdelnur edited comment on YARN-9 at 9/13/12 3:12 PM:
----------------------------------------------------------------

My bad on the +1. There are several place where it has not been updated. Also there are other YARN_ env vars, they should all be renamed to HADOOP_YARN_. Plus, with the patch, I'm getting failures with custom AMs, I believe it is due to the changes not being through out the code/scripts/config files.
                
      was (Author: tucu00):
    My bad on the +1. I think we should revert, there are several place where it has not been updated. Also there are other YARN_ env vars, they should all be renamed to HADOOP_YARN_. Plus, with the patch, I'm getting failures with custom AMs, I believe it is due to the changes not being through out the code/scripts/config files.
                  
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Alejandro Abdelnur (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454397#comment-13454397 ] 

Alejandro Abdelnur commented on YARN-9:
---------------------------------------

+1, makes sense. yes, opening jiras in Bigtop would help to signal them of the coming changes. thx.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461514#comment-13461514 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

bq.  Also there are other YARN_ env vars, they should all be renamed to HADOOP_YARN_.
Tucu, I'd would like to do this separately in an immediate follow-up.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hitesh Shah (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454366#comment-13454366 ] 

Hitesh Shah commented on YARN-9:
--------------------------------

@Alejandro, given that we are designating hadoop-2.0.x as alpha i.e. APIs may change/break, wouldn't it be better from a long-term simplicity point of view to just remove YARN_HOME?
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Closed] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Arun C Murthy (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Arun C Murthy closed YARN-9.
----------------------------

    
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13454391#comment-13454391 ] 

Vinod Kumar Vavilapalli commented on YARN-9:
--------------------------------------------

bq. FYI: Bigtop will have to adapt to this change, but I'm +/-0 on whether YARN_HOME needs to be supported. I suppose some existing users might have it hardcoded.
Yes, you are right. But I don't think we need to support YARN_HOME since, like Hitesh mentioned, none of the releases so far are deemed stable.

I understand some users will need update their scripts, but it's good we are doing it early in the releases.

FYI, there are few more like issues like https://issues.apache.org/jira/browse/MAPREDUCE-4649 which will impact Bigtop. How do you think we should drive this? I can just open tickets on Bigtop JIRA if that is fine.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Updated] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Vinod Kumar Vavilapalli (JIRA)" <ji...@apache.org>.
     [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Vinod Kumar Vavilapalli updated YARN-9:
---------------------------------------

    Attachment: YARN-9-20120923.txt

Updated patch, ready for review.

Hemanth and Tucu, appreciate feedback on this latest patch.

FYI, I've tested this on my local setup together with the latest patches at HADOOP-8794 and MAPREDUCE-4649.
                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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[jira] [Commented] (YARN-9) Rename YARN_HOME to HADOOP_YARN_HOME

Posted by "Hudson (JIRA)" <ji...@apache.org>.
    [ https://issues.apache.org/jira/browse/YARN-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13463822#comment-13463822 ] 

Hudson commented on YARN-9:
---------------------------

Integrated in Hadoop-Mapreduce-trunk #1208 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1208/])
    YARN-9. Rename YARN_HOME to HADOOP_YARN_HOME. Contributed by Vinod K V. (Revision 1390218)

     Result = SUCCESS
acmurthy : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1390218
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/slaves.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-config.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemon.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/bin/yarn-daemons.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/conf/yarn-env.sh
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/ApplicationConstants.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/main/resources/yarn-default.xml
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/main/java/org/apache/hadoop/yarn/server/nodemanager/LinuxContainerExecutor.java
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/CapacityScheduler.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/ClusterSetup.apt.vm
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-site/src/site/apt/SingleCluster.apt.vm

                
> Rename YARN_HOME to HADOOP_YARN_HOME
> ------------------------------------
>
>                 Key: YARN-9
>                 URL: https://issues.apache.org/jira/browse/YARN-9
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Arun C Murthy
>            Assignee: Vinod Kumar Vavilapalli
>             Fix For: 2.0.2-alpha
>
>         Attachments: YARN-9-20120912.txt, YARN-9-20120923.txt
>
>
> We should rename YARN_HOME to HADOOP_YARN_HOME to be consistent with rest of Hadoop sub-projects.

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