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From Amol Puglia <amolcpug...@yahoo.com>
Subject Tomcat Load Balancing Not working and Apache URL is giving 500 error
Date Thu, 09 Sep 2010 07:28:19 GMT
Hello Team,

We have installed one instance of apache and 3 instance of tomcat.

We have compiled mod_jk module to forward request to 3 instance of tomcat.

We have configured workers.properties and it is loaded in httpd.conf file.

We are successfully able to redirect request to plain tomcat installation.

We are getting 500 internal server error while accessing apache url after deploying our EMATRIX
application.

Below are the details of workers.properties file and httpd.conf file.

# lists the workers by name

worker.list=loadbalancer

# Tomcat1 configuration

worker.tomcat1.port=8009

worker.tomcat1.host=server_name

worker.tomcat1.type=ajp13

worker.tomcat1.lbfactor=100

# Tomcat2 configuration

worker.tomcat2.port=8010

worker.tomcat2.host=server_name

worker.tomcat2.type=ajp13

worker.tomcat2.lbfactor=100

# Tomcat3 configuration

worker.tomcat3.port=8011

worker.tomcat3.host=server_name

worker.tomcat3.type=ajp13

worker.tomcat3.lbfactor=100


#Load Balance worker configuration

worker.loadbalancer.type=lb

worker.loadbalancer.balanced_workers=tomcat1,tomcat2,tomcat3


Httpd.conf file details :-

LoadModule jk_module modules/mod_jk.so

JkWorkersFile conf/workers.properties

JkLogFile logs/mod_jk.log

JkLogLevel info

JkMount /eMatrix/* loadbalancer


Apache Version details :- 2.0.59

Tomcat Version details :- apache-tomcat-6.0.20

Mod_jk version details :- mod_jk-1.2.24

We have also noticed that jk module is loading properly in apache.

[Tue Sep 07 09:43:29 2010] [notice] Apache/2.0.59 (Unix) mod_jk/1.2.24 DAV/2 mod_ssl/2.0.59
OpenSSL/0.9.7d configured -- resuming normal operations


kindly help me to acheive loadbalancing from apache to tomcat.




      
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