[HADOOP-14867] Update HDFS Federation setup document, for incorrect property name for secondary name node http address

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-beta1, 2.8.3, 2.7.5
• Hadoop Flags: Reviewed
• Assignee: Bharat Viswanadham
• Reporter: Bharat Viswanadham
• Created: 13/Sep/17 18:21
• Updated: 13/Sep/17 20:30
• Resolved: 13/Sep/17 19:57

Description

HDFS Federation setup documentation is having incorrect property name for secondary namenode http port

It is mentioned as

<property>
    <name>dfs.namenode.secondaryhttp-address.ns1</name>
    <value>snn-host1:http-port</value>
  </property>
  <property>
    <name>dfs.namenode.rpc-address.ns2</name>
    <value>nn-host2:rpc-port</value>
  </property>

Actual property should be dfs.namenode.secondary.http-address.ns.

Because of this documentation error, when the document is followed and user tries to setup HDFS federated cluster, secondary namenode will not be started and also
hdfs getconf -secondarynamenodes throw's an exception