[jira] [Commented] (AMBARI-5201) Alert display randomly shows "No alerts" and then populate with alerts, back and forth

["Nate Cole (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-5201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13946807#comment-13946807 ] 

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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