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https://issues.apache.org/jira/browse/AMBARI-21279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dmytro Sen updated AMBARI-21279:
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Status: Patch Available (was: Open)
> Handle scenario when host in-memory aggregation is not working
> --------------------------------------------------------------
>
> Key: AMBARI-21279
> URL: https://issues.apache.org/jira/browse/AMBARI-21279
> Project: Ambari
> Issue Type: Task
> Components: ambari-metrics
> Affects Versions: 3.0.0
> Reporter: Dmytro Sen
> Assignee: Dmytro Sen
> Fix For: 3.0.0
>
> Attachments: AMBARI-21279.patch
>
>
> If monitor aggregation is enabled we do not do collector side 5 minutes
> aggregation. If a monitor is down we do not get metrics from that host.
> Metrics collector should check that metrics from a host are available per
> minute but aggregates are not.
> This could be based on liveliness check of a monitor. More like a heartbeat
> ping. When we loose ping for > 1 min < 5 min we can aggregate metrics for
> that time period and hostId.
> Sinks and monitor should switch back to collector reporting state if local
> aggregation app is not available.
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