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From "Arun Kumar Kandregula (JIRA)" <j...@apache.org>
Subject [jira] [Created] (AMBARI-1102) Error handling when errors are encountered during preparation for deploy
Date Tue, 18 Dec 2012 23:16:12 GMT
Arun Kumar Kandregula created AMBARI-1102:
---------------------------------------------

             Summary: Error handling when errors are encountered during preparation for deploy
                 Key: AMBARI-1102
                 URL: https://issues.apache.org/jira/browse/AMBARI-1102
             Project: Ambari
          Issue Type: Bug
          Components: client
    Affects Versions: 1.2.0
            Reporter: Arun Kumar Kandregula
             Fix For: 1.2.0


Currently, if any errors are encountered during preparation for deploy, the user is taken
to the deploy page and the hosts will be shown as "Waiting" but nothing happens. This is bad
UX.
At a minimum, we should prevent the user from proceeding and display an appropriate error
message if any error is encountered after "Deploy" is clicked, but before we transition to
Step 9.
We should also think about how a user can recover from this situation.
At this point, the deploy has not initiated, but certain API calls may have succeeded, so
we may have incomplete info in the database. Currently there's no convenient way to "rollback".
We can either ask the user to clean the slate by reinitializing the database and try again
(should succeed if the original problem was temporary).
We can also build more logic in the UI to retry, check if records already exist, etc...

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