Anybody interested in testing patch to allow weighted nodes?

[Ask Bjørn Hansen]

On May 16, 2007, at 10:44 PM, Brett G. Durrett wrote:

> So my question to this mailing list is...  does the perlbal  
> community see any value in having a weighting mechanism?  If the  
> answer is no, I would love to hear how you are achieving the same  
> effect and why your solution is your preferred mechanism.

"Load balancing" is short hand for "give each server an appropriate  
load".

If you have two servers, one "twice as powerful" as the other, the  
"appropriate load" isn't to send twice as much traffic to the "more  
powerful" one.

The appropriate load is to send as much traffic to each server as it  
can efficiently handle.

For most applications the primary resource constraint is either  
memory or CPU.   In either case you figure out how many simultaneous  
requests the server can/should handle and set the "maximum concurrent  
requests" to that number.  Viola, perfect distribution of the traffic.


  - ask

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