[jira] [Updated] (AMBARI-18851) Collector host refresh in Ambari Server is not working in single Metrics collector deployments.

["Aravindan Vijayan (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-18851?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Aravindan Vijayan updated AMBARI-18851:
---------------------------------------
    Status: Patch Available  (was: In Progress)

> Collector host refresh in Ambari Server is not working in single Metrics collector deployments.
> -----------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-18851
>                 URL: https://issues.apache.org/jira/browse/AMBARI-18851
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-metrics
>    Affects Versions: 2.5.0
>            Reporter: Aravindan Vijayan
>            Assignee: Aravindan Vijayan
>            Priority: Critical
>             Fix For: 2.5.0
>
>         Attachments: AMBARI-18851.patch
>
>
> Collector host refresh in Ambari Server is not working in single Metrics collector deployments.
> STR
> 1. Deploy Ambari with 1 Metrics collector instance.
> 2. Stop Metrics Collector.
> 3. Start Metrics collector after a few minutes.
> 4. Metrics are not displayed on Ambari, though they show up on Grafana.
> BUG
> AmbariServer Metrics Collector HA State component does not refresh collector host if current collector host is null. 



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