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https://issues.apache.org/jira/browse/AMBARI-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13946807#comment-13946807
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Nate Cole commented on AMBARI-5201:
-----------------------------------
commit 0e0aea9f1dea779bad4b2a3622fa5de2fd78db27
> Alert display randomly shows "No alerts" and then populate with alerts, back
> and forth
> --------------------------------------------------------------------------------------
>
> Key: AMBARI-5201
> URL: https://issues.apache.org/jira/browse/AMBARI-5201
> Project: Ambari
> Issue Type: Bug
> Components: controller
> Affects Versions: 1.5.0
> Reporter: Nate Cole
> Assignee: Nate Cole
> Fix For: 1.5.0
>
>
> Service alerts show "No alerts" then actual alerts, then "No alerts", back
> and forth. This was observed on a 800-node cluster.
> The issue is that on large clusters, the call to retrieve Nagios alerts takes
> a long time, and eventually times out. The fix is to make the call
> asynchronous so as not to block the UI. The reason for Nagios timeout is
> another issue.
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