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https://issues.apache.org/jira/browse/AMBARI-17589?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Aravindan Vijayan resolved AMBARI-17589.
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Resolution: Fixed
> Capture & visualize metrics for Ambari Server
> ---------------------------------------------
>
> Key: AMBARI-17589
> URL: https://issues.apache.org/jira/browse/AMBARI-17589
> Project: Ambari
> Issue Type: Epic
> Components: ambari-metrics, ambari-server
> Affects Versions: 2.5.0
> Reporter: Aravindan Vijayan
> Assignee: Li-Wei Tseng
> Priority: Critical
> Fix For: 2.5.0
>
>
> Ambari's architectural design is based on having a single master server with
> multiple agents. Each agent sends a heartbeat every X seconds to the server
> to report its status; the server may reply with a list of commands to be run
> by each agent.
> An operational cluster may have up to 2000-4000 agents and Ambari needs to be
> robust and performant at such scale. Often times, Ambari's overall
> performance is subject to the cluster’s environment like network latency and
> stability, Ambari database call latency, etc. In such environments, detecting
> the cause of the Ambari’s sluggish performance and/or instability have proven
> to be difficult in practice.
> Ambari should intercept and store the time and resources taken for serving
> requests. This information can be then presented to the end user on Ambari
> Web and/or Grafana.
> Optionally, this work can be extended to have Ambari Web persist time taken
> to process the response of each API call and other performance
> characteristics. Such performance data on Ambari Web can be again presented
> to the end user via Ambari Web and/or Grafana.
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