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From "Jonathan Hurley (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-15745) Create Alert For Reporting Potential Issues With Slow REST Responses
Date Wed, 06 Apr 2016 20:00:28 GMT
Jonathan Hurley created AMBARI-15745:
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             Summary: Create Alert For Reporting Potential Issues With Slow REST Responses
                 Key: AMBARI-15745
                 URL: https://issues.apache.org/jira/browse/AMBARI-15745
             Project: Ambari
          Issue Type: Task
          Components: ambari-server
    Affects Versions: 2.4.0
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
            Priority: Critical
             Fix For: 2.4.0


There are many factors which can influence the response rate of the REST API when the web
client polls various endpoints:

- Database access problems
- Federated PropertyProvider delays
- Serialization Time of JSON

If the response rate of the REST API is poor, this can affect the overall UX of the product
and produce a situation where Ambari doesn't seem to be responding.

There should be an alert which provides queries into various parts of Ambari in order to determine
if response times are acceptable. 

- This should be a {{SERVER}} side task
- If possible, the query should be made directly through the ResourceProvider framework to
simulate a REST request. It should be made against the cluster endpoint since that's what
is most likely polled.
- The alert should have configurable values for the threshold settings. 



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