Apache does not process them concurrently but serially all of them go to completion .( no error code etc..) One request runs , other requests wait to get processed, and so on. while i try mod_status to check ExtendedStatus I have been able to simplify our problem as below. Just put test.cgi and sleep.cgi in your cgi path and launch test.cgi in apache. test.cgi just presents a link to sleep.cgi which sleeps for 60 seconds. No matter how many times I launch this link in a new tab/windown in a browser when I do a ps -ef | grep sleep.cgi on the webserver box, I just see one process and later when this finishes(after a min ) its still just one perl process running sleep.cgi ( a different pid ) while other requests for sleep.cgi on the browser are waiting. On checking pstack I see apache children waiting on accept() multiple tabs in the browser are launched and waiting , but apache is not handling more than one cgi requests at a time. Scripts for perusal below == Test.cgi== #!/usr/bin/perl print "ContentTyep: text/html\n\n"; pringt << EOF <html> <br> <a href="http://localhost/cgi-bin/reports/sleep.cgi>Launch the sleep CGI<\a> <br> <html> EOF == == Sleep.cgi == #!/usr/bin/perl sleep(60); == On Wed, Jul 29, 2009 at 8:52 AM, Chandranshu .<chandranshu@xxxxxxxxx> wrote: > Hi Digz > > Meanwhile, when you say that "apache will not service any other CGI > requests", what exactly do you mean? Did you mean that your further HTTP > requests returned with 503 or some other error code? Or do they just wait > around for a long time before returning any data? > > You should enable mod_status with "ExtendedStatus On" and check whether your > requests are taken up for processing by the httpd server. Please send the > output generated by mod_status along with the apache config if your problem > remains unsolved. > > Best of Luck > Chandranshu > > On Wed, Jul 29, 2009 at 5:41 PM, Digvijoy Chatterjee <digvijoy.c@xxxxxxxxx> > wrote: >> >> Hi, >> >> We are running apache 2.0.35 on RHEL4 running in prefork mode. >> Its a standard apache configuration for running cgi scripts. I can >> send it if required >> >> The behaviour we are observing with apache is after servicing 2 cgi >> requests which (do a long database lookup ~5 minutes) >> apache will not service any other cgi requests until one of the above come >> back. >> >> I have tried using RLimitNPROC, RlimitCPU , and RLimitMEM and even set >> them to max, >> but it does not affect the behavior. >> >> apache runs as www. >> >> Any clues ? >> >> --Digz >> >> --------------------------------------------------------------------- >> The official User-To-User support forum of the Apache HTTP Server Project. >> See <URL:http://httpd.apache.org/userslist.html> for more info. >> To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx >> " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx >> For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx >> > > --------------------------------------------------------------------- The official User-To-User support forum of the Apache HTTP Server Project. See <URL:http://httpd.apache.org/userslist.html> for more info. To unsubscribe, e-mail: users-unsubscribe@xxxxxxxxxxxxxxxx " from the digest: users-digest-unsubscribe@xxxxxxxxxxxxxxxx For additional commands, e-mail: users-help@xxxxxxxxxxxxxxxx
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