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https://issues.apache.org/jira/browse/AMBARI-2852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13734212#comment-13734212
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Jeff Sposetti commented on AMBARI-2852:
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Also need to define where all components are hosted in the cluster for the
Utility in #2 above. AMBARI-1783 would be the spec to leverage.
> 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
> Priority: Minor
>
> 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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