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From Alexander Lorenz <wget.n...@googlemail.com>
Subject Re: dual power for hadoop in datacenter?
Date Sat, 07 Jan 2012 20:55:10 GMT
NN, SN and JT must have separated power adapter, for the entire cluster are dual adapter recommend.

For HBase and zookeeper servers / regionservers also dual adapters with seperated power lines
recommend. 

- Alex

sent via my mobile device

On Jan 7, 2012, at 11:23 AM, Koert Kuipers <koert@tresata.com> wrote:

> what are the thoughts on running a hadoop cluster in a datacenter with
> respect to power? should all the boxes have redundant power supplies and be
> on dual power? or just dual power for the namenode, secondary namenode, and
> hbase master, and then perhaps switch the power source per rack for the
> slaves to provide resilience to a power failure? or even just run
> everything on single power and accept the risk that everything can do down
> at once?

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