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https://issues.apache.org/jira/browse/AMBARI-3064?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13765887#comment-13765887
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Yusaku Sako commented on AMBARI-3064:
-------------------------------------
Committed to trunk.
> Ambari UI widgets should tolerate addition or removal of services
> -----------------------------------------------------------------
>
> Key: AMBARI-3064
> URL: https://issues.apache.org/jira/browse/AMBARI-3064
> Project: Ambari
> Issue Type: Bug
> Components: client
> Affects Versions: 1.4.0
> Reporter: Xi Wang
> Assignee: Xi Wang
> Fix For: 1.4.1
>
> Attachments: AMBARI-3064_2.patch, AMBARI-3064_3.PATCH,
> AMBARI-3064.patch
>
>
> When Ambari was upgraded from 1.2.5.17 to 1.4.0.18, MAPRDEDUCE was removed
> and YARN and MAPREDUCE2 were added.
> The persist value of widgets still had the widgets for MAPREDUCE due to which
> the dashboard came up to empty.
> So, we need to update the persist value for the same user if stack has
> upgraded.
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