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https://issues.apache.org/jira/browse/AMBARI-22589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16282344#comment-16282344
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Di Li commented on AMBARI-22589:
--------------------------------
pushed to trunk as
https://git-wip-us.apache.org/repos/asf?p=ambari.git;a=commit;h=f4d27390f0de5a0e85c143e783312d03f24adf54
> Ambari web UI stack version page is empty due to NPE when target stack does
> not contain all services from the current stack
> ---------------------------------------------------------------------------------------------------------------------------
>
> Key: AMBARI-22589
> URL: https://issues.apache.org/jira/browse/AMBARI-22589
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.6.1
> Reporter: Di Li
> Assignee: Di Li
> Fix For: trunk
>
> Attachments: AMBARI-22589.patch, screenshot-1.png
>
>
> Stack version page where it usually shows the current and target versions is
> empty when current stack has services that the to-be-upgraded-to stack does
> not have.
> this is due to a null pointer error at the ambari web UI level.
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