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https://issues.apache.org/jira/browse/AMBARI-18626?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrii Babiichuk updated AMBARI-18626:
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    Status: Patch Available  (was: Open)

> UI doesn't show validation errors for removed properties
> --------------------------------------------------------
>
>                 Key: AMBARI-18626
>                 URL: https://issues.apache.org/jira/browse/AMBARI-18626
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.5.0
>            Reporter: Andrii Babiichuk
>            Assignee: Andrii Babiichuk
>             Fix For: 3.0.0
>
>         Attachments: AMBARI_18626.patch
>
>
> Validation errors where added for empty or removed hadoop.proxyuser.* 
> properties. But if a property doesn't exist, UI doesn't show a validation 
> warning item (stack_advisor returns an error in validation items).
> *STR:*
> 1) Start install wizard
> 2) Select HDFS, Yarn, Zookeeper
> 3) Navigate to Customize Service page
> 4) Select HDFS and open *Custom core-site* category
> 5) Remove any/all hadoop.proxyuser.* properties , e.g. 
> hadoop.proxyuser.hdfs.groups
> 6) Click next
> *Result:*
> No warnings.
> *Expected:*
> The warning: "Value should be set for hadoop.proxyuser.hdfs.groups"



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