[jira] [Created] (AMBARI-20580) Cluster doesnot come up successfully when NameNodes that host HA have symmetric components

["shirsha ray chaudhuri (JIRA)" <ji...@apache.org>]

shirsha ray chaudhuri created AMBARI-20580:
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             Summary: Cluster doesnot come up successfully when NameNodes that host HA have symmetric components
                 Key: AMBARI-20580
                 URL: https://issues.apache.org/jira/browse/AMBARI-20580
             Project: Ambari
          Issue Type: Bug
          Components: ambari-server
    Affects Versions: 2.4.1
            Reporter: shirsha ray chaudhuri


We are trying to use Ambari Blueprints to bring up a Cluster with Name Node HA. The hosts that have the Name Node component have symmetric set of components, so they belong to the same host_group.
This host group is updated in the blueprint that is forwarded to the ambari server before the Cluster creation is triggerred with the Cluster Topology.
Ambari Server cannot map the hosts to the 2 namenodes rightly, in the hdfs-site.xml.
For instance, here's a snippet from hdfs-site.xml

   
    <property>
      <name>dfs.namenode.http-address.ourcluster.nn1</name>
      <value>host-10-194-11-42.nokia.com:50070</value>
    </property>

    <property>
      <name>dfs.namenode.http-address.ourcluster.nn2</name>
      <value>host-10-194-11-42.nokia.com:50070</value>
    </property>

    <property>
      <name>dfs.namenode.https-address.ourcluster.nn1</name>
      <value>host-10-194-11-42.nokia.com:50470</value>
    </property>

    <property>
      <name>dfs.namenode.https-address.ourcluster.nn2</name>
      <value>host-10-194-11-42.nokia.com:50470</value>
    </property>

After Cluster creation is triggerred, the HDFS Service doesnot come up, because neither of the nodes are in active mode.



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