Re: Why people not using mod_perl

[William T]

On Fri, Oct 23, 2009 at 4:06 PM, Ihnen, David  wrote:
>
> But I'm very interested to know at what point (if any) a site/app grows too
> large or too complex for mod_perl and what defines that turning point.
> Could Amazon run on mod_perl for example?

To me mod_perl is just a platform like most other web stacks.  As such
ANY webapp written with ANY webstack that is designed and built for
efficient horizontal scaling can be used.  Take into account how to
make the best use of a CDN, how to distribute database  load (probably
by partioning).

-wjt

Re: Server hangs after 502 request

[André Warnier]

Rolf Schaufelberger wrote:


It always has googleads as referer with a very long refer string and 
what das the 502 status mean?



http://lmgtfy.com?q=http+status+502

Server hangs after 502 request

[Rolf Schaufelberger]

Hi,

I have a server running,  configured with a lightweiht frontend apache  
and a backend mod_perl apache.
Starting some weeks ago the server sometimes hangs with an out of  
memory problem.

(Kernel panic, no killable process found )
I currently have no idea where that problems comes from, the numer of  
backend apache is set to 15, so this should not be a problem.
Yet, what I'have found, that the last request   logged in the frontend  
aache log looks like :


"GET / HTTP/1.1" 502 465 "http://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-8011132902902466&format=fp_al_lp&output=html&h=15&w=728&lmt=1256317728&channel=0471980043%2B7740394182&ea=0&flash=10.0.32.18&url=http%3A%2F%2Fwww.schulferien.org%2FBaden-Wurttemb_%2Fbaden-wurttemb_.html&dt=1256317728847&correlator=1256317728850&frm=0&ga_vid=795893907.1228664705&ga_sid=1256317729&ga_hid=250028746&ga_fc=1&u_tz=120&u_his=13&u_java=1&u_h=800&u_w=1280&u_ah=770&u_aw=1280&u_cd=32&u_nplug=0&u_nmime=0&biw=1276&bih=569&ref=http%3A%2F%2Fwww.google.de%2Fsearch%3Fhl%3Dde%26rlz%3D1T4SNYK_deDE295DE295%26q%3Dferien%2Bbaden%2Bw%25C3%25BCrttemberg%2B2010%26meta%3D%26aq%3D2%26oq%3Dferien%2Bbaden%2B&fu=0&ifi=1&dtd=271&kw_type=radlink&prev_fmts=728x15_0ads_al_s&rt=ChBK4eMkAAKqhwrMjcLbYhQ7Eg5KYWhyZXNrYWxlbmRlchoIyMwiMKeTu80oAVITCNvXmaHU050CFVGIzAodgFzQag&hl=de&kw0=Ferienkalender+NRW&kw1=Schulferien+2010&kw2=Jahreskalender&kw3=Kalender+Hessen+2008&kw4=Kalender+Schulferien&okw=Jahreskalender 
" "Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.0; Trident/4.0;  
GTB6; SLCC1; .NET CLR 2.0.50727; Media Center PC 5.0; .NET CLR  
1.1.4322; .NET CLR 3.5.30729; .NET CLR 3.0.30618)"


It always has googleads as referer with a very long refer string and  
what das the 502 status mean?


Does anybody have some idea what is happening ?
Can I simulate this request with LWP ?


Rolf Schaufelberger