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From "akhilesh.kumar" <akhilesh.ku...@zapak.co.in>
Subject How to disable secondary node
Date Thu, 09 Sep 2010 06:36:16 GMT
Hi ,
    Can any one help me in disabling secondary namenode feature of hdfs .


-----Original Message-----
From: ChingShen [mailto:chingshenchen@gmail.com] 
Sent: Thursday, September 09, 2010 12:07 PM
To: common-user@hadoop.apache.org
Subject: Questions about BN and CN

Hi all,

 I got the Backup node(BN) that includes all the checkpoint
 and it maintains an up-to-date namespace state, which is always in
sync with the active NN.

 Q1. In which situation do we need a CN?

 Q2. If the NameNode machine fails, which different manual
intervention between BN and CN?



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