[AMBARI-21449] Stack upgrade with pre-req checks enabled fails due to NPE

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.5.2
• Fix Version/s: 2.5.2
• Component/s: ambari-server
• Epic Link: Cross Stack Name Upgrades
• Assignee: Attila Doroszlai
• Reporter: Attila Doroszlai
• Created: 12/Jul/17 12:51
• Updated: 12/Jul/17 19:34
• Resolved: 12/Jul/17 18:21

Description

target_stack should be passed to PreUpgradeCheckResourceProvider to prevent the following NPE:

Caught a runtime exception while attempting to create a resource: null
java.lang.NullPointerException
        at org.apache.ambari.server.controller.internal.PreUpgradeCheckResourceProvider.getResources(PreUpgradeCheckResourceProvider.java:150)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$PreReqCheckValidator.check(UpgradeResourceProvider.java:2134)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$UpgradeRequestValidator.validate(UpgradeResourceProvider.java:2031)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$UpgradeRequestValidator.validate(UpgradeResourceProvider.java:2035)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider.validateRequest(UpgradeResourceProvider.java:691)

Issue Links

• links to: Review request