[jira] [Created] (AMBARI-10348) Alerts: Generate Server Side Alerts For Agent Health and Alert Staleness

["Jonathan Hurley (JIRA)" <ji...@apache.org>]

Jonathan Hurley created AMBARI-10348:
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             Summary: Alerts: Generate Server Side Alerts For Agent Health and Alert Staleness
                 Key: AMBARI-10348
                 URL: https://issues.apache.org/jira/browse/AMBARI-10348
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.0.0
            Reporter: Jonathan Hurley
            Assignee: Jonathan Hurley
            Priority: Critical
             Fix For: 2.1.0


Due to alerts being run on distributed platforms - we have problem wherein if alert is scheduled to run on a host that goes down - its not obvious to customer that alerts are not running and something is wrong. We need to do 2 thigns:

1. Generate an alert when not heard from Ambari Agent for quite sometime
2. Fire alerts which havent been run for quite sometime - saying they havent been run due to host not responding.

Seems like 2 new alerts are required, both of which being "Server Side" (which is a new concept).

- Ambari Server will need to maintain information about the last heartbeat from a host and produce alerts when a heartbeat has not been received. A new {{@AmbariService}} can handle this.

- Ambari Server will need to periodically check the last timestamp of all enabled alert instances and determine if the alert has not run within a certain period of time. A new {{@AmbariService}} can handle this.

We should utilize the alerts.json defined outside the stack since this affects hosts and alert instants and is not bound to a cluster.



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