On May 6, 2011, at 23:33, p...@0ne.us wrote: >> (And everyone mirroring from www.cpan.org would sorta defeat the purpose of >> having a bunch of mirrors -- unless we put more mirrors "behind" the >> www.cpan.org name.). > > Hmm, while reading this I was reminded of the pool.ntp.org concept, is > it applicable here? :)
Yes, search.cpan.org is using the same software as the NTP Pool for DNS. However - http://www.cpan.org/ doesn't get enough requests that bandwidth is a concern so it's really just about making it (very slightly) faster or maybe trading complexity to get it a little bit more reliable. The benefits are not really obvious enough to make it to the top of my todo. Optimizing/distributing cpan-rsync.perl.org will probably come first, but that also got down the priority list a bit. Just looking at the logs for today there are about 60 mirrors using rrr and about the same number doing an occasional full rsync (between once a day and every few hours) and the load is basically completely negligible so far. 'rrr' drastically cuts down the IO required and the SSD that's serving the CPAN data can just do a crazy amount of "rsync type I/O". - ask -- Ask Bjørn Hansen, http://askask.com/
