[jira] [Created] (AMBARI-20692) Add Ability to Pause An Upgrade In Progress

["Antonenko Alexander (JIRA)" <ji...@apache.org>]

Antonenko Alexander created AMBARI-20692:
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             Summary: Add Ability to Pause An Upgrade In Progress
                 Key: AMBARI-20692
                 URL: https://issues.apache.org/jira/browse/AMBARI-20692
             Project: Ambari
          Issue Type: Bug
          Components: ambari-web
    Affects Versions: 2.4.0
            Reporter: Antonenko Alexander
            Assignee: Antonenko Alexander
             Fix For: 3.0.0


During an upgrade, there is no ability to arbitrarily pause the request and gain control of the cluster back. If there is a pre-defined manual task or a failure which cannot be skipped, then the user has the ability to pause the upgrade (which in turn aborts the request temporarily).

There should be a way to do this during the upgrade while it's running a command. The following are some example of ways in which this would be useful:

- During a long running rolling upgrade, the customer may need to regain control of Ambari to restart a component. They cannot necessarily wait for the upgrade to finish or wait for a spot where the UI presents them the option to pause.

- If an upgrade is having difficulty due to a configuration property in {{ambari.properties}}, the administrator will want to pause the upgrade in order to shut down Ambari and make the configuration changes.



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