relational for what?

Stephan Eggermont stephan at stack.nl
Fri Jan 5 11:24:34 UTC 2007


>>What, really?  There are many possible reasons that Google don't use  an 
>>RDBMS to index the web: stupidity, arrogance, excessive cost of an  RDBMS, 
>>sound engineering decisions, or a combination of these.

>I'm not saying Google are idiots.  Clearly not.  I was basically just 
>questioning using them as some sort of counter point against RDBM systems.  
>I think you could do the same thing they did with a RDBMS, but not on a 
>bunch of low end computers.  You would have to spend some cash.

If you take a look at the access patterns of google you should
be able to see that if you wanted to eliminate a lot of cpu's,
you'd need an exchange rate of 1 cpu for 100 disks or so.
That's not cost-effective at all.

Stephan Eggermont




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