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https://issues.apache.org/jira/browse/AMBARI-15181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15167178#comment-15167178
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Oleg Nechiporenko commented on AMBARI-15181:
--------------------------------------------
Committed to trunk
> JS error on UI load
> -------------------
>
> Key: AMBARI-15181
> URL: https://issues.apache.org/jira/browse/AMBARI-15181
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.4.0
> Environment: YARN should be installed
> Reporter: Oleg Nechiporenko
> Assignee: Oleg Nechiporenko
> Priority: Critical
> Fix For: 2.4.0
>
> Attachments: AMBARI-15181.patch
>
>
> {noformat}
> Uncaught TypeError: Cannot read property 'map' of undefined
> {noformat}
> Code:
> {noformat}
> var alertsCount =
> groupedByComponentName[master.get('componentName')].map(function
> (alertDefinition) {
> {noformat}
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