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https://issues.apache.org/jira/browse/AMBARI-23722?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aleksandr Kovalenko resolved AMBARI-23722.
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Resolution: Fixed
> Ambari allows namespace name to be reused for new namespaces
> ------------------------------------------------------------
>
> Key: AMBARI-23722
> URL: https://issues.apache.org/jira/browse/AMBARI-23722
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.7.0
> Reporter: Aleksandr Kovalenko
> Assignee: Aleksandr Kovalenko
> Priority: Critical
> Labels: pull-request-available
> Fix For: 2.7.0
>
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> - Deployed a cluster with namespaces ns1 and ns2
> - Try Adding new namespace via UI
> - Name it ns1
> - Next button should not be enabled and error message should be displayed to
> avoid conflicting namespaces
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