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From "Jonathan Hurley (JIRA)" <>
Subject [jira] [Updated] (AMBARI-20851) Provide Alert For Component OUT_OF_SYNC Issues
Date Wed, 26 Apr 2017 02:40:04 GMT


Jonathan Hurley updated AMBARI-20851:
    Status: Patch Available  (was: Open)

> Provide Alert For Component OUT_OF_SYNC Issues
> ----------------------------------------------
>                 Key: AMBARI-20851
>                 URL:
>             Project: Ambari
>          Issue Type: Task
>          Components: ambari-server
>    Affects Versions: 2.4.0
>            Reporter: Jonathan Hurley
>            Assignee: Jonathan Hurley
>            Priority: Critical
>             Fix For: 2.5.1
>         Attachments: AMBARI-20851.patch
> Components can become {{OUT_OF_SYNC}} before and after stack upgrades. As a result, this
can affect the success of future upgrade attempts. It seems wrong to expose a direct way to
alter this state since it's calculated from the agents.
> - The logic currently for reporting component versions is as follows:
> -- On an agent's initial heartbeat registration, status commands will report component
versions. Subsequent status commands will not.
> -- On any START/STOP/RESTART, the component will report a version
> This means that if a host is {{OUT_OF_SYNC}} there are two ways to automatically fix
it (assuming the cluster is properly upgraded)
> - Restart the agent on that host
> - Restart the components which are {{OUT_OF_SYNC}} on that host
> It would be good to notify the cluster administrator that there is a problem with the
reported version of the components.

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