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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-1867) NPE while fetching apps via the REST API
Date Mon, 24 Mar 2014 21:46:48 GMT

    [ https://issues.apache.org/jira/browse/YARN-1867?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13945741#comment-13945741
] 

Vinod Kumar Vavilapalli commented on YARN-1867:
-----------------------------------------------

That doesn't sound right. When RM recovers, it just simply puts the app back into *both* the
context and the acls manager. Can you debug more?

> NPE while fetching apps via the REST API
> ----------------------------------------
>
>                 Key: YARN-1867
>                 URL: https://issues.apache.org/jira/browse/YARN-1867
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>            Priority: Blocker
>              Labels: rest_api
>
> We ran into the following NPE when fetching applications using the REST API:
> {noformat}
> INTERNAL_SERVER_ERROR
> java.lang.NullPointerException
> at org.apache.hadoop.yarn.server.security.ApplicationACLsManager.checkAccess(ApplicationACLsManager.java:104)
> at org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebServices.hasAccess(RMWebServices.java:123)
> at org.apache.hadoop.yarn.server.resourcemanager.webapp.RMWebServices.getApps(RMWebServices.java:418)
> {noformat}



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