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https://issues.apache.org/jira/browse/AMBARI-3405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13784015#comment-13784015
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Aleksandr Kovalenko commented on AMBARI-3405:
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+1 for the patch
> NameNode HA Wizard: allow the user to exit out of the wizard with a warning
> pointing to manual rollback steps
> -------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-3405
> URL: https://issues.apache.org/jira/browse/AMBARI-3405
> Project: Ambari
> Issue Type: Task
> Components: client
> Affects Versions: 1.4.1
> Reporter: Antonenko Alexander
> Assignee: Antonenko Alexander
> Fix For: 1.4.1
>
> Attachments: AMBARI-3405_1.4.1.patch, AMBARI-3405.patch
>
>
> 1) Add "X" on all pages in the "Enable HA" wizard
> 2) Remove the "Rollback" button
> 3) Up until (and including) the "Create Checkpoint" page, clicking on the X
> just dismisses the wizard (as it does today)
> 4) If the user has started the "Configure Components" stage in the wizard
> (which means: Ambari has failed after actually performing changes), when the
> user clicks the X, the user will be warned with the following message:
> * You are in the process of enabling NameNode HA. If you exit now, you
> *must* follow manual instructions to revert back to the non-HA setup: \[link
> to doc - target="_blank"\]. Are you sure you want to exit the wizard?
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