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From "Mit Desai (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2900) Application Not Found in AHS throws Internal Server Error with NPE
Date Mon, 24 Nov 2014 23:14:13 GMT

    [ https://issues.apache.org/jira/browse/YARN-2900?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14223734#comment-14223734
] 

Mit Desai commented on YARN-2900:
---------------------------------

bq. We can capture XXXXNotFoundException and convert it to webapp.NotFoundException
[~zjshen] How about we just return a null if the entity == null in ApplicationHistoryManagerOnTimelineStore?
That way, when the call returns to WebServices, it will throw NotFoundException form its current
implementation. This is the exact same approach that is used in the patch that I submitted
earlier

> Application Not Found in AHS throws Internal Server Error with NPE
> ------------------------------------------------------------------
>
>                 Key: YARN-2900
>                 URL: https://issues.apache.org/jira/browse/YARN-2900
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>            Reporter: Jonathan Eagles
>            Assignee: Mit Desai
>         Attachments: YARN-2900.patch
>
>
> Caused by: java.lang.NullPointerException
> 	at org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerImpl.convertToApplicationReport(ApplicationHistoryManagerImpl.java:128)
> 	at org.apache.hadoop.yarn.server.applicationhistoryservice.ApplicationHistoryManagerImpl.getApplication(ApplicationHistoryManagerImpl.java:118)
> 	at org.apache.hadoop.yarn.server.webapp.WebServices$2.run(WebServices.java:222)
> 	at org.apache.hadoop.yarn.server.webapp.WebServices$2.run(WebServices.java:219)
> 	at java.security.AccessController.doPrivileged(Native Method)
> 	at javax.security.auth.Subject.doAs(Subject.java:415)
> 	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1679)
> 	at org.apache.hadoop.yarn.server.webapp.WebServices.getApp(WebServices.java:218)
> 	... 59 more



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