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https://issues.apache.org/jira/browse/AMBARI-8771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14250768#comment-14250768
 ] 

Hadoop QA commented on AMBARI-8771:
-----------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12687828/AMBARI-8771.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: 
https://builds.apache.org/job/Ambari-trunk-test-patch/981//console

This message is automatically generated.

> Blueprints: Add support for deploying HDFS NameNode HA Clusters
> ---------------------------------------------------------------
>
>                 Key: AMBARI-8771
>                 URL: https://issues.apache.org/jira/browse/AMBARI-8771
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-server
>    Affects Versions: 1.7.0
>            Reporter: Robert Nettleton
>            Assignee: Robert Nettleton
>             Fix For: 2.0.0
>
>         Attachments: AMBARI-8771.patch
>
>
> It should be possible to deploy a cluster using Blueprints that can support 
> HDFS NameNode HA.  
> Currently in Ambari, the User Interface supports adding HA support for 
> NameNodes to a running cluster.  
> In the Blueprint case, the HA support for NameNodes must be added at the 
> initial cluster deployment/startup, since Blueprints does not support an 
> interactive model.  
> The support for NameNode HA in Ambari 2.0 should at least support an "expert 
> mode" option, where the user adds all of the required HA configuration to the 
> Blueprint or cluster creation template in order to setup an HA cluster.  In 
> future releases, it may be possible to auto-generate some of this 
> configuration, in order to ease the burden of HA setup for the 
> Blueprints/Ambari user.  
> This work will involve changes to the Blueprint validation code, since our 
> stacks do not currently support HA directly.  It should be possible to deploy 
> a NameNode HA Blueprint without turning off Blueprint validation.  



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