Ok so mod_status helped me make an interesting observation : There is only one child picking up the request for sleep.cgi when i launch it new in new tabs/ new windows, rest are children all waiting, and picking the next requests when this one gets done . Srv PID Acc M CPU SS Req Conn Child Slot Client VHost Request 0-0 20815 0/0/0 W 0.00 0 684599440 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /server-status HTTP/1.1 1-0 20816 0/0/0 W 0.00 36 684635474 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 However clicking that one link on the page again and again launches up new processes with no restraint. here below ( same link clicked again and again ) and the same child pid is responsible for launching up new instances of sleep.cgi ( 20815, 20816 ) 0-0 20815 0/0/0 W 0.00 7 684077228 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 0-0 20815 0/0/0 W 0.00 6 684076661 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 0-0 20815 0/0/0 W 0.00 5 684076206 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 1-0 20816 1/1/1 W 0.00 7 0 0.1 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 1-0 20816 0/0/0 W 0.00 6 684076898 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 1-0 20816 0/0/0 W 0.00 6 684076442 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /cgi-bin/sleep.cgi HTTP/1.1 1-0 20816 0/0/0 W 0.00 0 684070224 0.0 0.00 0.00 127.0.0.1 127.0.1.1 GET /server-status HTTP/1.1 The apache conf , I have attached here. Let me know , what else could help Thanks Digz 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 >> > >
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