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From "Jonathan Hurley (JIRA)" <>
Subject [jira] [Created] (AMBARI-20851) Provide Alert For Component OUT_OF_SYNC Issues
Date Tue, 25 Apr 2017 22:56:04 GMT
Jonathan Hurley created AMBARI-20851:

             Summary: Provide Alert For Component OUT_OF_SYNC Issues
                 Key: AMBARI-20851
             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

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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