[jira] [Created] (AMBARI-21658) Address config group host mapping left behind after host delete

["Siddharth Wagle (JIRA)" <ji...@apache.org>]

Siddharth Wagle created AMBARI-21658:
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             Summary: Address config group host mapping left behind after host delete
                 Key: AMBARI-21658
                 URL: https://issues.apache.org/jira/browse/AMBARI-21658
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
            Reporter: Siddharth Wagle
            Assignee: Siddharth Wagle
            Priority: Critical
             Fix For: 2.5.2


Delete hosts deletes the config group host mapping as well, however, certain older versions of Ambari have reported seeing orphaned mappings in the configgrouphostmapping table.

This results in Add Service wizard being stuck with the following error message:

{code}
This is a JS issue. No exceptions/error in Ambari server logs: 
Uncaught TypeError: Cannot read property 'id' of undefined 
at http://192.167.42.111:8080/javascripts/app.js:37021:96 
at Array.map (native) 
at Class.<anonymous> 
{code}

The patch addresses identifying such an error on server start and providing a way to fix it automatically.



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