Apache mod_jk module uses for communication between Apache webserver and tomcat application server.
Most of the real-world applications are multi-tier applications
and application server always behind the web servers. It will improve
application performance and better way of handle load balance between
application servers.
Generally, all static content requests serve by webserver
and if any dynamic request, then only it will go to application servers such a
way it will improve application performance.
OS: Windows 10
Webserver: Apache2.4
Pre-Requisite
Install Apache server
http://www.liferaysavvy.com/2021/07/install-apache-webserver-in-windows.html
Download mod_jk module
Apache is providing tomcat connectors that is mod_jk
from following website. Download binary version of mod_jk module. We can
also build mod_jk from source. All apache modules have extension *.so.
Apache Haus is also proving binary version of apache modules.
http://archive.apache.org/dist/tomcat/tomcat-connectors/jk/binaries/windows/
Download “tomcat-connectors-1.2.40-windows-x86_64-httpd-2.4.x.zip”
from above download page or use direct link below.
Extract “tomcat-connectors-1.2.40-windows-x86_64-httpd-2.4.x.zip”
it contains “mod_jk.so” file.
Copy “mod_jk.so” file to Apache24 module
directory
Load Module
Create mod_jk configuration file in apache conf
extra directory “C:\Apache2441\conf\extra” and add load module
configurations as follows. Configuration also covered log location and its format.
|
LoadModule
jk_module "${SRVROOT}/modules/mod_jk.so" <IfModule
jk_module> JkLogFile ${SRVROOT}/logs/mod_jk.log JkLogStampFormat "[%b %d %Y -
%H:%M:%S] " JkRequestLogFormat "%w %V %T" JkLogLevel info JkOptions +ForwardKeySize
+ForwardURICompat -ForwardDirectories </IfModule> |
Include “mod_jk” configuration in
httpd.conf
Open “httpd.conf” file in the apache conf
directory and include “mod_jk” configuration as follows.
|
# mod_jk
configurations Include
conf/extra/mod_jk.conf |
Start Apache
Once enabled the mod_jk module, start/restart
server. Access default page in browser.
Verify mod_jk loading
Once apache is started successfully you can see mod_jk.log
file in the apache logs directory. If you open the logs we can see below
message for successful loading of module or we can see error information.
mod_jk/1.2.40 initialized
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