I just had one of my webservers go down, unrelated to my squid server on my local lan, but I noticed that after a certain ammount of time, seems that once squid "realizes that a host is down" it will then serve the most recent version of the site from cache, which I think is EXCELLENT, i never noticed this before, of course i recently upgraded from squid3 debian lenny, to squid 3.1 in debian squeeze. One thing tho, how do I adjust the timing on this, in other words, I mean, instead of squid taking 2 minutes or so to "realize" the actual host is down and serve cache, how can I reduce this period? to say 20-30 seconds? Clearly I wouldnt want squid to give up on a host with high latency, but I would like to know how to fine tune this until I get a satisfactory timing. Or if its possible at all for that matter. I just think this is a great feature but in order to really make use of it when there are connectivity issues, would like to reduce the ttl on the cached version served. Thanks in advance!
