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https://issues.apache.org/jira/browse/AMBARI-7204?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14201580#comment-14201580
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Robert Levas commented on AMBARI-7204:
--------------------------------------
For the Tech Preview, a managed KDC will not be supported - only cases where
Ambari relies on an existing KDC or Active Directory.
> Ambari Automated Kerberization
> ------------------------------
>
> Key: AMBARI-7204
> URL: https://issues.apache.org/jira/browse/AMBARI-7204
> Project: Ambari
> Issue Type: Epic
> Components: ambari-server, security, stacks
> Affects Versions: 2.0.0
> Environment: Kerberos
> Reporter: Robert Levas
> Assignee: Robert Levas
> Labels: active-directory, authentication, kerberos,
> mit-kerberos, security, stack
> Fix For: 2.0.0
>
> Attachments: AmbariClusterKerberization.pdf
>
> Original Estimate: 2,016h
> Remaining Estimate: 2,016h
>
> *Problem*
> Manually installing and setting up Kerberos for a secure Hadoop cluster is
> error prone, largely manual and a potential source of configuration problems.
> It requires many steps where configuration files and credentials may need to
> be distributed across many nodes. Because of this the process is time
> consuming and lead to a high probability of user error.
> The problem is exacerbated when the cluster is modified by adding or removing
> nodes and services.
> *Solution*
> Use Ambari to secure the cluster using Kerberos. By automating the process
> of setting up Kerberos, the repetitive tasks of distributing configuration
> details and credentials can be done in parallel to the nodes within the
> cluster. This also negates most user-related errors due to the lack of
> interaction a user has with the process.
> See [^AmbariClusterKerberization.pdf] for more details.
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