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From Dave Latham <lat...@davelink.net>
Subject Re: data loss after cluster wide power loss
Date Sat, 06 Jul 2013 21:10:38 GMT
On Wed, Jul 3, 2013 at 7:03 AM, Michael Segel <michael_segel@hotmail.com>wrote:

> How did you lose power to the entire cluster?
> I realize that this question goes beyond HBase, but is an Ops question. Do
> you have redundant power sources and redundant power supplies to the racks
> and machines in the cluster?

The data center that cluster is in suffered a complete power failure during
some maintenance they were running.  I don't know all the details though
apparently they made some mistakes in their process.  Our namenode does
have two power supplies, but they are all dependent on the datacenter.

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