On 10/26/2011 08:49 PM, Steven Jones wrote:
Hi,

Readng the docs on the 32bit UIDs it says it makes an attempt to give out a 
unique range....would it be possible / practical if RH (would want to) ran some 
sort of database or registration function to try and insure that?


regards

Steven Jones

Technical Specialist - Linux RHCE

Victoria University, Wellington, NZ

0064 4 463 6272

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No. It would not be. Fragmentation of the 32 Bit space means that you are going to have clashes. Just look at IPv4 addresses and you can see an analogue. 32bits really means 32 bits, as you have to deal with sometimes things being stored in signed values (Java for instance) so you have 2^31 or 2,147,483,648. Which is not quite a quarter of the worlds population. Now, assuming that any organization is going to be smaller than that, you have to figure out how much to give them...they are going to make it a financial decision, so the US governement buys up enough to be future proof, lets say 1 Billion, leaveing a little over 1 Billion for the Rest of the world...then China comes in. Then India. You get the idea.







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