[jira] [Commented] (AMBARI-24919) Allow Namenode HA setup with external namenodes in BlueprintConfigurationProcessor

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

    [ https://issues.apache.org/jira/browse/AMBARI-24919?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16691934#comment-16691934 ] 

Hudson commented on AMBARI-24919:
---------------------------------

SUCCESS: Integrated in Jenkins build Ambari-trunk-Commit #10310 (See [https://builds.apache.org/job/Ambari-trunk-Commit/10310/])
AMBARI-24919 external Namenode HA (benyoka) (#2625) (github: [https://gitbox.apache.org/repos/asf?p=ambari.git&a=commit&h=93576b7c9bc25361ba1e43c9dfb08fc136667520])
* (edit) ambari-server/src/test/java/org/apache/ambari/server/topology/ClusterTopologyImplTest.java
* (edit) ambari-server/src/main/java/org/apache/ambari/server/topology/validators/TopologyValidatorFactory.java
* (edit) ambari-server/src/test/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessorTest.java
* (edit) ambari-server/src/main/java/org/apache/ambari/server/topology/ClusterTopologyImpl.java
* (edit) ambari-server/src/main/java/org/apache/ambari/server/topology/ClusterTopology.java
* (edit) ambari-server/src/main/java/org/apache/ambari/server/controller/internal/BlueprintConfigurationProcessor.java
* (add) ambari-server/src/main/java/org/apache/ambari/server/topology/validators/NameNodeHaValidator.java
* (add) ambari-server/src/test/java/org/apache/ambari/server/topology/validators/NameNodeHaValidatorTest.java


> Allow Namenode HA setup with external namenodes in BlueprintConfigurationProcessor
> ----------------------------------------------------------------------------------
>
>                 Key: AMBARI-24919
>                 URL: https://issues.apache.org/jira/browse/AMBARI-24919
>             Project: Ambari
>          Issue Type: Task
>    Affects Versions: 2.7.2
>            Reporter: Balázs Bence Sári
>            Assignee: Balázs Bence Sári
>            Priority: Critical
>              Labels: pull-request-available
>             Fix For: trunk
>
>          Time Spent: 1h 10m
>  Remaining Estimate: 0h
>
> There is an increasing demand for clusters with some of the components being managed externally to Ambari.
> This ticket addresses the problem where the cluster contains a HDFS_CLIENT but server HDFS server components are external and NAMENODE is HA.
> In this cases, cluster template validation failed as there were 0 name nodes which is less than the expected minimum of two.
> Going forward the following setup should pass validation:
> - Namenode HA is enabled
> - There are 0 namenodes
> - all namenode dfs rpc addresses point to an external fqdn.
> This will give sufficent protection against accidentally omitted namenodes, however will enable clusters with external namenodes.



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