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

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

     [ https://issues.apache.org/jira/browse/AMBARI-10348?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jonathan Hurley updated AMBARI-10348:
-------------------------------------
    Attachment: AMBARI-10348.patch

> 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
>
>         Attachments: AMBARI-10348.patch
>
>
> 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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