[jira] [Updated] (AMBARI-2278) Ambari should provide an option to clean a host of existing installs and then re-install required components

["Sumit Mohanty (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-2278?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sumit Mohanty updated AMBARI-2278:
----------------------------------

    Summary: Ambari should provide an option to clean a host of existing installs and then re-install required components  (was: Ambari should provide an option to clean a host of prior installs and re-install required components)
    
> Ambari should provide an option to clean a host of existing installs and then re-install required components
> ------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-2278
>                 URL: https://issues.apache.org/jira/browse/AMBARI-2278
>             Project: Ambari
>          Issue Type: Bug
>          Components: controller
>    Affects Versions: 1.2.4
>            Reporter: Sumit Mohanty
>             Fix For: 1.2.5
>
>
> Due to many reasons (e.g. prior installation/cleanup of Hadoop components) its possible that hosts may be in an inconsistent state (e.g. a Hadoop component is installed but some directories are missing). If its OK for the user to erase and install Hadoop components then Ambari should support it. The Ambari feature is  to clean up the host before installing Hadoop components.

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