Re: mod_jk fails to forward request on high traffic

2009-09-10 Thread John Cherouvim
Thanks guys, that seems to solve the problem. I also tried Mark's DisableReuse and it works fine, but I reverted since the timeouts solution works well and looks better. Another resource I used to get a better understanding of the issue was http://kbase.redhat.com/faq/docs/DOC-15866 Thanks

mod_jk fails to forward request on high traffic

2009-09-08 Thread John Cherouvim
Hello I have a website which during peak time (peak lasts around ~4 hours with 14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests. My setup is: - SUSE Linux Enterprise Server 10 (x86_64) with 8 cpus, 16GB ram - 1 instance of apache 2.2.10 with mpm prefork -

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread Mark Thomas
John Cherouvim wrote: Hello I have a website which during peak time (peak lasts around ~4 hours with 14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests. My guess is that all of your Tomcat AJP threads are tied up with idle httpd threads. Try the following in your

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread Rainer Jung
On 08.09.2009 17:49, Mark Thomas wrote: John Cherouvim wrote: Hello I have a website which during peak time (peak lasts around ~4 hours with 14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests. My guess is that all of your Tomcat AJP threads are tied up with idle

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread John Cherouvim
Thanks for your reply. I'll try DisableReuse on the next peak, although I read in http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html that: For this you set JkOptions +DisableReuse in your Apache httpd configuration. This will have a huge negative performance impact! Is there

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread Mark Thomas
John Cherouvim wrote: Thanks for your reply. I'll try DisableReuse on the next peak, although I read in http://tomcat.apache.org/connectors-doc/generic_howto/timeouts.html that: For this you set JkOptions +DisableReuse in your Apache httpd configuration. This will have a huge negative

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread André Warnier
Rainer Jung wrote: On 08.09.2009 17:49, Mark Thomas wrote: John Cherouvim wrote: Hello I have a website which during peak time (peak lasts around ~4 hours with 14 pageviews/sec, 140 http requests/sec) starts to drop pageview requests. My guess is that all of your Tomcat AJP threads are tied

Re: mod_jk fails to forward request on high traffic

2009-09-08 Thread André Warnier
John Cherouvim wrote: ... Is there a possibility that there is a problem with the fact that I use: IfModule mpm_prefork_module ... ServerLimit1024 MaxClients 1024 and default Connector settings? Connector port=8010 protocol=AJP/1.3 redirectPort=8443 address=127.0.0.1 /