[AMBARI-19576] Downgrade request fails as existing Upgrade request is considered 'in progress'

• Type: Bug
• Status: Resolved
• Priority: Blocker
• Resolution: Fixed
• Affects Version/s: 2.5.0
• Fix Version/s: 2.5.0
• Component/s: ambari-web
• Assignee: Richard Zang
• Reporter: Vivek Sharma
• Created: 17/Jan/17 02:13
• Updated: 20/Mar/17 21:46
• Resolved: 17/Jan/17 19:52

Description

ambari-server --hash
c1748443f8585c9457691c2a39e35da1d3e66c52

Build #2.5.0.0-633

STR

1. Started Express Upgrade to HDP-2.6.0.0 (via UI)
2. Hit downgrade at first manual prompt

Result
Downgrade failed with below error:

14 Jan 2017 16:53:46,013 ERROR [ambari-client-thread-35] AbstractResourceProvider:285 - Caught AmbariException when creating a resource
org.apache.ambari.server.AmbariException: Unable to perform downgrade as another downgrade (request ID 293) is in progress.
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$PreReqCheckValidator.check(UpgradeResourceProvider.java:2028)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$UpgradeRequestValidator.validate(UpgradeResourceProvider.java:1952)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$UpgradeRequestValidator.validate(UpgradeResourceProvider.java:1956)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider.validateRequest(UpgradeResourceProvider.java:660)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider.access$100(UpgradeResourceProvider.java:140)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$1.invoke(UpgradeResourceProvider.java:399)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider$1.invoke(UpgradeResourceProvider.java:374)
        at org.apache.ambari.server.controller.internal.AbstractResourceProvider.invokeWithRetry(AbstractResourceProvider.java:455)
        at org.apache.ambari.server.controller.internal.AbstractResourceProvider.createResources(AbstractResourceProvider.java:278)
        at org.apache.ambari.server.controller.internal.UpgradeResourceProvider.createResources(UpgradeResourceProvider.java:374)
        at org.apache.ambari.server.controller.internal.ClusterControllerImpl.createResources(ClusterControllerImpl.java:298)
        at org.apache.ambari.server.api.services.persistence.PersistenceManagerImpl.create(PersistenceManagerImpl.java:97)
        at org.apache.ambari.server.api.handlers.CreateHandler.persist(CreateHandler.java:37)
        at org.apache.ambari.server.api.handlers.BaseManagementHandler.handleRequest(BaseManagementHandler.java:73)
        at org.apache.ambari.server.api.services.BaseRequest.process(BaseRequest.java:144)
        at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:126)
        at org.apache.ambari.server.api.services.BaseService.handleRequest(BaseService.java:90)
        at org.apache.ambari.server.api.services.UpgradeService.createUpgrade(UpgradeService.java:58)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)