[AMBARI-22882] Long cannot be cast to String error when changing a user's password

• Type: Bug
• Status: Resolved
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 2.7.0
• Fix Version/s: 2.7.0
• Component/s: ambari-server
• Labels: pull-request-available
• Epic Link: Improve User Account Management Within Ambari
• Assignee: Robert Levas
• Reporter: Robert Levas
• Created: 30/Jan/18 18:37
• Updated: 01/Feb/18 19:34
• Resolved: 01/Feb/18 19:34

Description

Long cannot be cast to String error when changing a user's password:

30 Jan 2018 18:21:11,308 ERROR [ambari-client-thread-38] AbstractResourceProvider:353 - Caught AmbariException when modifying a resource
org.apache.ambari.server.AmbariException: java.lang.Long cannot be cast to java.lang.String
at org.apache.ambari.server.controller.internal.UserResourceProvider.addOrUpdateLocalAuthenticationSource(UserResourceProvider.java:559)
at org.apache.ambari.server.controller.internal.UserResourceProvider.updateUsers(UserResourceProvider.java:486)
at org.apache.ambari.server.controller.internal.UserResourceProvider.access$200(UserResourceProvider.java:69)
at org.apache.ambari.server.controller.internal.UserResourceProvider$3.invoke(UserResourceProvider.java:264)
at org.apache.ambari.server.controller.internal.UserResourceProvider$3.invoke(UserResourceProvider.java:261)
at org.apache.ambari.server.controller.internal.AbstractResourceProvider.invokeWithRetry(AbstractResourceProvider.java:465)
at org.apache.ambari.server.controller.internal.AbstractResourceProvider.modifyResources(AbstractResourceProvider.java:346)
at org.apache.ambari.server.controller.internal.UserResourceProvider.updateResources(UserResourceProvider.java:261)
at org.apache.ambari.server.controller.internal.ClusterControllerImpl.updateResources(ClusterControllerImpl.java:317)
...

Steps to reproduce

1. Create a LOCAL user account (using either the Ambari UI or REST API)

   POST /api/v1/users
   

   Payload

   { 
     "Users" : {
       "user_name" : "myuser",
       "password" : "hadoop"
     }
   }
   

2. Change the user's password (using either the Ambari UI or REST API via the users entry point)

   PUT /api/v1/users/myuser
   

   Payload

   { 
     "Users" : {
       "old_password" : "hadoop"
       "password" : "hadoop1234"
     }
   }
   

   Response

   {
     "status" : 500,
     "message" : "org.apache.ambari.server.controller.spi.SystemException: An internal system exception occurred: java.lang.Long cannot be cast to java.lang.String"
   }
   

Cause
When building the internal request to set the user's password via the UserAuthenticationSource resource provider, the authentication source key is set as a Long. The UserAuthenticationSource resource provider expects this value to be a String.

Solution
The User resource provider should set the AuthenticationSourceInfo/source_id as a String value.

Issue Links

• links to: GitHub Pull Request #235