I am using mod_jk-1.2.31-httpd-2.2.x.so for Load Balancing with Apcahe 2.2.15 and multiple instance of apache tomcat 6 on RHEL6 LINUX OS. I have create workers.properties
worker.list=stat,balancer
worker.worker1.port=8019
worker.worker1.host=localhost
worker.worker1.type=ajp13
worker.worker1.lbfactor=1
worker.worker2.port=8029
worker.worker2.host=localhost
worker.worker2.type=ajp13
worker.worker2.lbfactor=1
worker.balancer.type=lb
worker.stat.type=status
worker.balancer.balance_workers=worker1,worker2
worker.balancer.method=B
worker.balancer.sticky_session=True
In httpd.conf
LoadModule jk_module modules/mod_jk-1.2.31-httpd-2.2.x.so
# Load workers files from the config directory "/etc/httpd/conf".
JkWorkersFile /etc/httpd/conf/workers.properties
## Path to jk logs
JkLogFile logs/mod_jk.log
JkShmFile run/mod_jk.shm
# Jk log level [debug/error/info]
JkLogLevel info
# Jk log format
JkLogStampFormat "[%a %b %d %H:%M:%S %Y] "
# JkOptions for forwarding
JkOptions +ForwardKeySize +ForwardURICompat -ForwardDirectories
# JkRequestLogFormat set the request format
JkRequestLogFormat "%w %V %T"
JkMount /status stat
JkMount /Oa balancer
JkMount /Oa/* balancer
If calling Mount Webproject Oa then in log mod_jk.log
[Thu Dec 03 12:54:41 2015] [22380:140534825461728] [info]
init_jk::mod_jk.c (3198): mod_jk/1.2.31 (1026297) initialized
[Thu Dec 03 12:54:41 2015] [22381:140534825461728] [info]
init_jk::mod_jk.c (3198): mod_jk/1.2.31 (1026297) initialized
[Thu Dec 03 12:54:48 2015] stat newoag.iitk.ac.in 0.000353 [Thu Dec
03 12:55:52 2015] [22385:140534825461728] [info]
jk_open_socket::jk_connect.c (626): connect to 127.0.0.1:8019 failed
(errno=13)
[Thu Dec 03 12:55:52 2015] [22385:140534825461728] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening
socket to (127.0.0.1:8019) (errno=13)
[Thu Dec 03 12:55:52 2015] [22385:140534825461728] [error]
ajp_send_request::jk_ajp_common.c (1578): (worker1) connecting to
backend failed. Tomcat is probably not started or is listening on
the wrong port (errno=13)
[Thu Dec 03 12:55:52 2015] [22385:140534825461728] [info]
ajp_service::jk_ajp_common.c (2543): (worker1) sending request to
tomcat failed (recoverable), because of error during request sending
(attempt=1)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
jk_open_socket::jk_connect.c (626): connect to 127.0.0.1:8019 failed
(errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening
socket to (127.0.0.1:8019) (errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [error]
ajp_send_request::jk_ajp_common.c (1578): (worker1) connecting to
backend failed. Tomcat is probably not started or is listening on
the wrong port (errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
ajp_service::jk_ajp_common.c (2543): (worker1) sending request to
tomcat failed (recoverable), because of error during request sending
(attempt=2)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [error]
ajp_service::jk_ajp_common.c (2562): (worker1) connecting to tomcat
failed.
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
service::jk_lb_worker.c (1388): service failed, worker worker1 is in
error state
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
jk_open_socket::jk_connect.c (626): connect to 127.0.0.1:8029 failed
(errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening
socket to (127.0.0.1:8029) (errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [error]
ajp_send_request::jk_ajp_common.c (1578): (worker2) connecting to
backend failed. Tomcat is probably not started or is listening on
the wrong port (errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
ajp_service::jk_ajp_common.c (2543): (worker2) sending request to
tomcat failed (recoverable), because of error during request sending
(attempt=1)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
jk_open_socket::jk_connect.c (626): connect to 127.0.0.1:8029 failed
(errno=13)
[Thu Dec 03 12:55:53 2015] [22385:140534825461728] [info]
ajp_connect_to_endpoint::jk_ajp_common.c (959): Failed opening
socket to (127.0.0.1:8029) (errno=13)
Please suggest me, Can I used ajp connector 8019,8029.. in place of default port 8009? How it is working? Please send document if any for load balacing of multiple instance of tomcat in one system.
In RHEL6, SELinux is enforce mode in defualt, for access port set mode Permissive for SELinux
setenforce 0
you can view mode of SELinux
getenforce