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https://issues.apache.org/jira/browse/AMBARI-9800?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14336781#comment-14336781
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Andrii Tkach commented on AMBARI-9800:
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+1 for the patch.
> 400-node cluster: Hosts page stuck in loading state
> ---------------------------------------------------
>
> Key: AMBARI-9800
> URL: https://issues.apache.org/jira/browse/AMBARI-9800
> Project: Ambari
> Issue Type: Bug
> Components: ambari-web
> Affects Versions: 2.0.0
> Reporter: Andrii Babiichuk
> Assignee: Andrii Babiichuk
> Priority: Critical
> Fix For: 2.0.0
>
> Attachments: AMBARI-9800.patch, AMBARI-9800_branch_2.0.patch
>
>
> Go to hosts page.
> After loading hosts next request sent to server:
> /api/v1/clusters/c1?fields=Clusters/health_report,Clusters/total_hosts,alerts_summary_hosts&minimal_response=true
> but it fails as "cancelled", UI sends request every 6 seconds, regardless
> whether previous was finished or not, so server can't response in time as if
> number of calls growing.
> UI should make next call only when previous finished, should apply this
> approach to all pollings in ambari web to guarantee performance on big
> cluster.
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