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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1859) WebAppProxyServlet will throw ApplicationNotFoundException if the app is no longer cached in RM
Date Thu, 20 Mar 2014 21:57:43 GMT

    [ https://issues.apache.org/jira/browse/YARN-1859?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942366#comment-13942366
] 

Hadoop QA commented on YARN-1859:
---------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12635873/YARN-1859.1.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version
1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-web-proxy.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-YARN-Build/3412//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/3412//console

This message is automatically generated.

> WebAppProxyServlet will throw ApplicationNotFoundException if the app is no longer cached
in RM
> -----------------------------------------------------------------------------------------------
>
>                 Key: YARN-1859
>                 URL: https://issues.apache.org/jira/browse/YARN-1859
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Zhijie Shen
>            Assignee: Zhijie Shen
>         Attachments: YARN-1859.1.patch
>
>
> WebAppProxyServlet checks null to determine whether the application is not found or not.
> {code}
>  ApplicationReport applicationReport = getApplicationReport(id);
>       if(applicationReport == null) {
>         LOG.warn(req.getRemoteUser()+" Attempting to access "+id+
>             " that was not found");
> {code}
> However, WebAppProxyServlet calls AppReportFetcher, which consequently calls ClientRMService.
When application is not found, ClientRMService throws ApplicationNotFoundException. Therefore,
in WebAppProxyServlet, the following logic to create the tracking url for a non-cached app
will no longer be in use.



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