[YARN-2527] NPE in ApplicationACLsManager

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.6.0
• Component/s: resourcemanager
• Hadoop Flags: Reviewed
• Assignee: Benoy Antony
• Reporter: Benoy Antony
• Created: 09/Sep/14 19:57
• Updated: 01/Dec/14 03:10
• Resolved: 02/Oct/14 22:00

Description

NPE in ApplicationACLsManager can result in 500 Internal Server Error.
The relevant stacktrace snippet from the ResourceManager logs is as below

Caused by: java.lang.NullPointerException
        at org.apache.hadoop.yarn.server.security.ApplicationACLsManager.checkAccess(ApplicationACLsManager.java:104)
        at org.apache.hadoop.yarn.server.resourcemanager.webapp.AppBlock.render(AppBlock.java:101)
        at org.apache.hadoop.yarn.webapp.view.HtmlBlock.render(HtmlBlock.java:66)
        at org.apache.hadoop.yarn.webapp.view.HtmlBlock.renderPartial(HtmlBlock.java:76)
        at org.apache.hadoop.yarn.webapp.View.render(View.java:235)

This issue was reported by miguenther.