>.... > Thanks to the caching, any of my images or other static content gets > pushed once a day to the front, and then doesn't tie up the back ever > again. .....
I have a question regarding to the cached files. Although the maximal period is set to be 24 hours in httpd.conf's proxy settings, many of the files, which were cached from the backend mod_perl dynamical program, are strangely modified every a few minutes. For all the files I checked so far, they do look to be modified because the hex strings on top of the files (such as 000000003D189FC2) are different after each modifications. Forgive me if this is off-topic: it is more likely a mod_proxy question. I searched, but could not find related information pages to read. Thanks. Peter Bi ----- Original Message ----- From: "Randal L. Schwartz" <[EMAIL PROTECTED]> To: "Perrin Harkins" <[EMAIL PROTECTED]> Cc: "md" <[EMAIL PROTECTED]>; "Stas Bekman" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, June 25, 2002 8:38 AM Subject: Re: when to mod_perl? > >>>>> "Perrin" == Perrin Harkins <[EMAIL PROTECTED]> writes: > > Perrin> Static content is easy; just don't serve it from mod_perl. The proxy > Perrin> approach is good, and so is a separate image server (which you can > Perrin> host on the same machine). I've found thttpd to be an amazingly > Perrin> efficient server for images, but a slimmed-down apache does very well > Perrin> too. > > On the new www.stonehenge.com, I'm using a stripped down Apache (just > mod_proxy and mod_rewrite) for a reverse caching proxy, and it's about > 1.5M RSS per process. I divert requests for TT's /splash/images and > Apache's /icons, but otherwise, all content requests (including for > /merlyn/Pictures/ images) go to my heavyweight mod_perl backends, > which are running about 10M RSS. > > Thanks to the caching, any of my images or other static content gets > pushed once a day to the front, and then doesn't tie up the back ever > again. On a 500Mhz 256M box, I'm easily serving 50K requests a day > (about 10K of those are fully uncached dynamic pages touching about 20 > to 50 TT includes), with loadaverages staying below 0.5. If it ever > starts getting higher, I can cache the expensive menubar creation > (which is nearly completely static) using Perrin's device, but I've > not bothered yet. > > It's been amazingly carefree. I'm planning to move > www.geekcruises.com to be served on the same box, although they get > only about 1/10th the traffic. > > -- > Randal L. Schwartz - Stonehenge Consulting Services, Inc. - +1 503 777 0095 > <[EMAIL PROTECTED]> <URL:http://www.stonehenge.com/merlyn/> > Perl/Unix/security consulting, Technical writing, Comedy, etc. etc. > See PerlTraining.Stonehenge.com for onsite and open-enrollment Perl training! >
