Re: Confused by mpm/mod_jk

2009-05-15 Thread Bill Davidson
Christopher Schultz wrote: Yes, most TCP/IP stacks use 127.0.0.1 as a special-case that avoids most of the real stack and instead uses a kernel buffer as the data transfer mechanism. I just tried to benchmark my own system localhost versus a DNS name that resolves to an IP address handled on th

Re: Confused by mpm/mod_jk

2009-05-15 Thread Bill Davidson
Rainer Jung wrote: StartServers 2 MaxClients 256 MinSpareThreads 25 MaxSpareThreads 75 ThreadsPerChild 32 Usually MinSpaceThreads and MaxSpareThreads having a multiple of ThreadsPerChild makes it easier understandable, what the numbers mean.

Re: Confused by mpm/mod_jk

2009-05-15 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Bill, On 5/11/2009 8:09 PM, Bill Davidson wrote: > Rainer Jung wrote: >>Are the Apaches connected to each Tomcat, or only to "their" Tomcat? > > Only to their own Tomcat. I even do the connection on the loopback > for security and (I hope) performan

Re: Confused by mpm/mod_jk

2009-05-12 Thread Rainer Jung
On 12.05.2009 02:09, Bill Davidson wrote: >>The 150 threads do not make a good fit to your MaxClients of 256. If >>your Apache is mainly forwarding requests to Tomcat, then it doesn't >>make much sense to allow 256 parallel connections to Apace, but only 150 >>on the backend. That will result in so

Re: Confused by mpm/mod_jk

2009-05-11 Thread Bill Davidson
Rainer Jung wrote: Hey great, someone using recent version :) I've been trying to stay current with the stable releases since upgrading the app from httpd 1.3 and Tomcat 3.2.4 last year. I usually wait a couple weeks to a month and watch the mailing lists after a release to make sure nothing m

Re: Confused by mpm/mod_jk

2009-05-11 Thread Rainer Jung
Hi Bill, On 11.05.2009 23:15, Bill Davidson wrote: > I'm trying to understand mpm_worker MaxCLients and it's relationship > with mod_jk connection_pool_size. > > Here's what I've got at the moment: > > OS: Red Hat 5.2 Server > httpd: 2.2.11 > tomcat-connector: 1.2.28 > tomcat: 6.0.18 > Java: 1.6

Confused by mpm/mod_jk

2009-05-11 Thread Bill Davidson
I'm trying to understand mpm_worker MaxCLients and it's relationship with mod_jk connection_pool_size. Here's what I've got at the moment: OS: Red Hat 5.2 Server httpd: 2.2.11 tomcat-connector: 1.2.28 tomcat: 6.0.18 Java: 1.6.0_13 httpd-mpm.conf: ListenBacklog 2048 StartServers