[jira] [Updated] (AMBARI-2852) Ambari installation and configuration to manage an existing deployed hadoop Cluster

["Yusaku Sako (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-2852?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yusaku Sako updated AMBARI-2852:
--------------------------------

    Priority: Major  (was: Minor)
    
> Ambari installation and configuration to manage an existing deployed hadoop Cluster
> -----------------------------------------------------------------------------------
>
>                 Key: AMBARI-2852
>                 URL: https://issues.apache.org/jira/browse/AMBARI-2852
>             Project: Ambari
>          Issue Type: New Feature
>          Components: client
>    Affects Versions: 1.4.0
>            Reporter: Anisha Agarwal
>
> In case you want to use Ambari for management of a live Hadoop cluster (including monitoring and eco-system services), without deployment. Ambari assumes it has the control of Hadoop installation. Suppose there is an existing HDP Hadoop cluster and one wants to install Ambari to start managing/monitoring Hadoop. The proposal is to allow Ambari installation on the cluster but bypass the Hadoop (and eco-system) deployment. We should provide the ability to import the existing configuration without over writing existing setup. 
>  
> Proposed phases:
> 1. Provide on Ambari wiki documentation, leveraging Ambari API, all manual steps to configure Ambari without redeploying Hadoop and its eco-system
> 2. Provide a template configuration file and one Utility (leaning toward Python script) that automates the process of important an existing configuration
> 3. Provide User interface to allow step above via UI

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