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From Steve Loughran <ste...@apache.org>
Subject Re: Configuration: I need help.
Date Thu, 07 Aug 2008 10:41:25 GMT
Allen Wittenauer wrote:
> On 8/6/08 11:52 AM, "Otis Gospodnetic" <otis_gospodnetic@yahoo.com> wrote:
>> You can put the same hadoop-site.xml on all machines.  Yes, you do want a
>> secondary NN - a single NN is a SPOF.  Browser the archives a few days back to
>> find an email from Paul about DRBD (disk replication) to avoid this SPOF.
> 
>     Keep in mind that even with a secondary name node, you still have a
> SPOF.  If the NameNode process dies, so does your HDFS. 
> 

There's always a SPOF. it just moves. Sometimes it moves out of your own 
infrastructure, and then you have big problems :)

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