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From Slava Imeshev <imes...@yahoo.com>
Subject Re: Infrastructure for large Lucene index
Date Tue, 10 Oct 2006 20:34:07 GMT
Doug,

--- Doug Cutting <cutting@apache.org> wrote:

> > the availability of this approach doesn't scale very cleanly though ... if
> > any one box in either cluster goes down, the entire cluster becomes
> > unusable.
> 
> A cost-effective variation works as follows: if you have 10 indexes and 
> 11 nodes, then you keep one node as a spare.  When any of the 10 active 
> nodes fail, the 11th resumes its duties.  While the 11th node is 
> launching you search only 9 out of the 10 indexes, so failover is not 
> entirely seamless, but it's a lot cheaper than mirroring all nodes.

How does the 11th know what index it has to bring up? In other words, 
where would it get the lost index?

Slava


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