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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3387) A tracking URL of N/A before the app master is launched breaks oozie
Date Sat, 17 Dec 2011 00:08:31 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13171331#comment-13171331
] 

Hudson commented on MAPREDUCE-3387:
-----------------------------------

Integrated in Hadoop-Hdfs-trunk-Commit #1517 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/1517/])
    MAPREDUCE-3387. Fixed AM's tracking URL to always go through the proxy, even before the
job started, so that it works properly with oozie throughout the job execution. Contributed
by Robert Joseph Evans.

vinodkv : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1215345
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/RMAppAttemptImpl.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/webapp/dao/AppInfo.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/rmapp/attempt/TestRMAppAttemptTransitions.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/main/java/org/apache/hadoop/yarn/server/webproxy/ProxyUriUtils.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy/src/test/java/org/apache/hadoop/yarn/server/webproxy/TestProxyUriUtils.java

                
> A tracking URL of N/A before the app master is launched breaks oozie
> --------------------------------------------------------------------
>
>                 Key: MAPREDUCE-3387
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3387
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>            Priority: Critical
>             Fix For: 0.23.1
>
>         Attachments: MR-3387.txt, MR-3387.txt, MR-3387.txt
>
>
> When oozie launches a map/reduce job it retrieves the tracking URL of that job to display
in its own UI.  Previously this tracking URL did not change except when the job completed.
 Currently the URL starts out as N/A and then changes to the real URL once the AppMaster launches.
 This breaks oozie, as oozie expects to be able to get that information quickly and get back
to processing other requests.
> Because the web app proxy is now available we can maintain backwards compatibility by
instead of returning N/A we can return the URL of the proxy for that application.  This relies
on the fact that the application master's UI will display the correct thing for the URI http://<host>:<port>/,
which MR and others now do.

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