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From ben short <>
Subject Limit connections to tomcat via mod_jk
Date Wed, 04 Feb 2009 13:13:35 GMT

We have Apache Httpd 2.4.4 in front of Tomcat 6.0.13 and are using
mod_jk to talk between them.
Apache Httpd is using prefork configured to allow 256 processes.
Tomcat also has 256 threads available.

When a user requests a page one call to the Tomcat is made followed by
many requests to get static content served up by Apache Httpd.

When under load we find that pages take a long time to load due to the
number of requests. We believe that by increasing the number of Apache
Httpd processes available the pages should load faster as the majority
of requests are for static content.

What we need to be able to do is limit the number of concurrent
requests from Apache Httpd to Tomcat. Meaning that we could have 768
Apache processes available for static content and 256 threads for

Is something like this possible?


Ben Short

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