On Wed, Oct 10, 2007, leongmzlist wrote: > Does squid read the entire coss file when it starts up and does the > store rebuild? I'm planning to have 480GB store, using 48 10GB coss files. > > I have 6 disks, so each disk will have 8 COSS files, each coss file @ 10GB > > During my initial test, it takes ~120 seconds to read through a 10GB > coss store. At that rate, it'll take over an hour to do the rebuild. > > Any tips, suggestions? I'd suggest benchmarking the COSS effective throughput with 48 COSS spools. Someone who lurks in the #squiddev irc channel noted that COSS stopped scaling on request rate after a couple of COSS stripes. The COSS rebuild procedure is horrible but its all I could do given the constraints I was working under. If someone would like to "fix" it I'm more than happy to talk to them about it; I just don't have the time to invest in changing the COSS disk format to support faster rebuilds. Adrian
