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On Oracle Big Appliance 4.0 Release HDFS Can be Accessed Only on Infiniband IP Address (Doc ID 1943866.1)

Last updated on NOVEMBER 08, 2022

Applies to:

Big Data Appliance Integrated Software - Version 4.0 and later
Linux x86-64

Symptoms

In BDA 4.0 release, 'Bind NameNode to Wildcard Address' parameter is not enabled on a secure cluster and thus HDFS can only be accessed thru Infiniband IP address and not Ethernet IP. For this reason NameNode cannot be accessed from a Edge Node or Client server which is not part of the BDA Cluster.

$ hdfs dfs -ls /
14/11/06 17:30:59 WARN retry.RetryInvocationHandler: Exception while invoking class
org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo. Not retrying because failovers (15) exceeded maximum allowed (15)
java.net.ConnectException: Call From <Client / Edge Server> to :8020
 failed on connection exception: java.net.ConnectException: Connection refused;
For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
  at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
  at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57)
  at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
  at java.lang.reflect.Constructor.newInstance(Constructor.java:526)
  at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:783)
.....

 

Cause

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In this Document
Symptoms
Cause
Solution


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