Apache Tomcat issue

["Sharpless, Frank" <fs...@paperhost.com>]

 

Hello,

 

I have a very strange issue regarding my Apache/Tomcat configuration.
The symptom is that when a user is trying to connect to a non balanced
web application (i.e. /setup or /stech)  the initial request can take up
to 120 seconds to respond; any request after that replies very quickly,
usually within 1-2 seconds.  My environment consists of both load
balanced and non balanced servers, all using Apache to load balance.  

 

The only clue I have is that my load balanced web applications (i.e.
/abc and /ls ) do not have this issue; only the non balanced web
applications that are affected.

 

My Apache server version is Apache/2.2.0 (Win32) mod_jk/1.2.15
mod_ssl/2.2.0 OpenSSL/0.9.8a DAV/2. I am currently running Apache Tomcat
5.5.12 Server. Tomcat is using is Windows 2000 service pack 4; Apache is
running on Windows 2003 x64 service pack 1.

 

My httpd.conf  VirturalHost section contains the mounts:

 

  ### Balanced Mounts

 

  JkMount /abc applb

  JkMount /abc/* applb

  

  JkMount /ls cslb

  JkMount /ls/* cslb

  

 

  ## Non Balanced Mounts

  JkMount /setup setup

  JkMount /setup/* setup

  

  JkMount /stech stech

  JkMount /stech/* stech      

 

 

My remoteworker.properties file contains the following configuration:

 

ps=/

worker.list=stech,setup,cslb,applb

 

##

## Web Application Load Balancer

##

worker.cslb.type=lb

worker.cslb.balanced_workers=cmd01,cmd02

 

worker.applb.type=lb

worker.applb.balanced_workers=app01,app02

 

##

## Web Application Not Load Balanced

##

worker.stech.port=8999

worker.stech.host=10.5.10.4

worker.stech.type=ajp13

 

worker.setup.port=8999

worker.setup.host=10.5.10.10

worker.setup.type=ajp13

 

 

##

## App Workers

##

worker.app01.port=8999

worker.app01.host=10.5.10.3

worker.app01.type=ajp13

worker.app01.prepost_timeout=500

worker.app01.lbfactor=10

 

worker.app02.port=8999

worker.app02.host=10.5.10.4

worker.app02.type=ajp13

worker.app02.prepost_timeout=500

worker.app02.lbfactor=10

 

##

## Command Workers

##

worker.cmd01.port=8999

worker.cmd01.host=10.5.10.3

worker.cmd01.type=ajp13

worker.cmd01.prepost_timeout=500

worker.cmd01.lbfactor=10

 

worker.cmd02.port=8999

worker.cmd02.host=10.5.10.4

worker.cmd02.type=ajp13

worker.cmd02.prepost_timeout=500

worker.cmd02.lbfactor=10

 

Thanks for any help you can provide.

 

Regards,

 

A. Frank Sharpless

Manager, Application Development

fsharpless@paperhost.com

678.397.1602