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From "Kevin A. McGrail" <>
Subject Re: notes about new mirrors as Re: NOTE: Warning to Abusers of Update Servers
Date Sun, 26 Nov 2017 16:03:43 GMT
On 11/26/2017 10:58 AM, Dave Jones wrote:
>> Dave, in talks with cPanel a few weeks they also offered help using 
>> their 40+ mirrors worldwide.  We should open a ticket and think about 
>> how we can use shorted-path or geolocated algorithms coupled with 
>> weighting to maximize the mirrors.  Thoughts?
> I am sure there are ways to determine location/country and hit the 
> nearest one in the sa-update logic.  I am not sure that the three 
> relatively small ruleset files need to be optimized too much.  As long 
> as sa-update knows which version it downloaded last and it compares 
> agains the DNS TXT version to only download when there is a 
> difference, then it should be optimized enough.  If it downloads from 
> a mirror on the opposite side of the earth, I don't think that 200 KB 
> is going to make much difference if it takes 2 seconds or 30 seconds 
> from a time perspective.  If we were talking about 10x the size, then 
> it might be more of a problem that needed solving.

Fair enough.


Kevin A. McGrail
Asst. Treasurer & VP Fundraising, Apache Software Foundation
Chair Emeritus Apache SpamAssassin Project

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