[squid-users] Squid proxying okay but not really cacheing?
Hi. I've just set up a squid system (2.5stable3) under Linux, and I've changed only the access control setting in the squid.conf file, to allow me access. It's working fine, and passing requests and pages through nicely. However, I can't really see that it's doing much cacheing, when I would expect it to. So far I'm the only user, testing the system, and I'm using a website mapping application which walks through every page on a website, following all the local links, as a way of generating some traffic through squid. I'm visiting a couple of sites which have nearly all static content, so it should be cacheable okay. The first time I run the app, and I watch squid's access.log output, I see lots of TCP_MISS entries, with the access going DIRECT to fetch the webpage from the server. But it looks pretty much the same the second time I do the same thing - I get very few TCP_HIT, TCP_IMS_HIT or TCP_MEM_HIT entries, and my inbound traffic to the squid server is pretty much as high as it was the first time round. I have two questions, which I can't find in the FAQ: 1. Can I get any statistics out of squid to tell me what size cache it's using, how full it is, and how quickly it's churning the entries? 2. Is there anything else I should be changing in the squid.conf file to get good cacheing as well as proxying? Thanks, Antony. -- Programming is a Dark Art, and it will always be. The programmer is fighting against the two most destructive forces in the universe: entropy and human stupidity. They're not things you can always overcome with a methodology or on a schedule. - Damian Conway, Perl God
Re: [squid-users] Squid proxying okay but not really cacheing?
Antony Stone wrote: Hi. I've just set up a squid system (2.5stable3) under Linux, and I've changed only the access control setting in the squid.conf file, to allow me access. It's working fine, and passing requests and pages through nicely. However, I can't really see that it's doing much cacheing, when I would expect it to. So far I'm the only user, testing the system, and I'm using a website mapping application which walks through every page on a website, following all the local links, as a way of generating some traffic through squid. I'm visiting a couple of sites which have nearly all static content, so it should be cacheable okay. The first time I run the app, and I watch squid's access.log output, I see lots of TCP_MISS entries, with the access going DIRECT to fetch the webpage from the server. But it looks pretty much the same the second time I do the same thing - I get very few TCP_HIT, TCP_IMS_HIT or TCP_MEM_HIT entries, and my inbound traffic to the squid server is pretty much as high as it was the first time round. I have two questions, which I can't find in the FAQ: 1. Can I get any statistics out of squid to tell me what size cache it's using, how full it is, and how quickly it's churning the entries? Use squid's cachemgr interface to obtain various stats/info about the cache. 2. Is there anything else I should be changing in the squid.conf file to get good cacheing as well as proxying? Not really, 'refresh_pattern' is related , though read the comment in squid.conf.default completely before tweaking this parameter. You can also use : http://www.ircache.net/cgi-bin/cacheability.py as a 'tool' to verify cacheability stats for objects returned by webservers. M.
Re: [squid-users] Squid proxying okay but not really cacheing?
On Tuesday 08 July 2003 10.20, Antony Stone wrote: 1. Can I get any statistics out of squid to tell me what size cache it's using, how full it is, and how quickly it's churning the entries? Yes, via the cachemgr interface. 2. Is there anything else I should be changing in the squid.conf file to get good cacheing as well as proxying? Make sure that your cache size is sufficiently large to fit the content you want to cache. The default setting is just 100MB. Regards Henrik -- Donations welcome if you consider my Free Squid support helpful. https://www.paypal.com/xclick/business=hno%40squid-cache.org If you need commercial Squid support or cost effective Squid or firewall appliances please refer to MARA Systems AB, Sweden http://www.marasystems.com/, [EMAIL PROTECTED]
