Кластеризация (Apache 2.2.25 mod_jk + JBoss EAP 6.2) с отключенной репликацией сеансов и включенной привязкой не работает.

Для такого сценария вам необходимо реализовать эту архитектуру. Мы используем ту же архитектуру для размещения Wildfly.

Примечание. Не забудьте включить привязку сеанса/постоянство соединения в Load Balancer (LB) и Apache mod_jk.

В этой архитектуре:

За

   WEB1 -> App1 is Active APP NODE
   WEB2 -> APP2 is Active APP NODE

Так что если запрос/соединение приходит НА LB, то оно перенаправляется на WEB1. Поскольку на LB включена фиксация сеанса/постоянство соединения, все запросы, поступающие от одного и того же клиента, перенаправляются только на WEB1.

Вот моя конфигурация Apache Load Balancer:

workers.properties для node1

# Define list of workers that will be used
# for mapping requests
# The configuration directives are valid
# for the mod_jk version 1.2.18 and later
#
worker.list=loadbalancer,status

# Define Node1
# modify the host as your host IP or DNS name.
worker.node1.port=8009
worker.node1.host=10.62.147.58
worker.node1.type=ajp13
worker.node1.lbfactor=1
#worker.node1.socket_timeout=600
#worker.node1.ping_timeout=1000
worker.node1.ping_mode=A
#worker.node1.connection_pool_timeout=600
worker.node1.redirect=node2


# Define Node2
# modify the host as your host IP or DNS name.
worker.node2.port=8009
worker.node2.host=10.62.147.59
worker.node2.type=ajp13
worker.node2.lbfactor=1
#worker.node2.socket_timeout=600
#worker.node2.ping_timeout=1000
worker.node2.ping_mode=A
#worker.node2.connection_pool_timeout=600
worker.node2.activation=disabled

# Load-balancing behavior
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=node1,node2
worker.loadbalancer.sticky_session=1
worker.loadbalancer.retry_interval=30
worker.loadbalancer.recover_time=20
#worker.loadbalancer.sticky_session_force=1

# Status worker for managing load balancer
worker.status.type=status

workers.properties для node2

# Define list of workers that will be used
# for mapping requests
# The configuration directives are valid
# for the mod_jk version 1.2.18 and later
#
worker.list=loadbalancer,status

# Define Node1
# modify the host as your host IP or DNS name.
worker.node1.port=8009
worker.node1.host=10.62.147.58
worker.node1.type=ajp13
worker.node1.lbfactor=1
#worker.node1.socket_timeout=600
#worker.node1.ping_timeout=1000
worker.node1.ping_mode=A
#worker.node1.connection_pool_timeout=600
worker.node1.activation=disabled


# Define Node2
# modify the host as your host IP or DNS name.
worker.node2.port=8009
worker.node2.host=10.62.147.59
worker.node2.type=ajp13
worker.node2.lbfactor=1
#worker.node2.socket_timeout=600
#worker.node2.ping_timeout=1000
worker.node2.ping_mode=A
#worker.node2.connection_pool_timeout=600
worker.node2.redirect=node1

# Load-balancing behavior
worker.loadbalancer.type=lb
worker.loadbalancer.balance_workers=node1,node2
worker.loadbalancer.sticky_session=1
worker.loadbalancer.retry_interval=30
worker.loadbalancer.recover_time=20
#worker.loadbalancer.sticky_session_force=1

# Status worker for managing load balancer
worker.status.type=status

mod-jk.conf

# Load mod_jk module
# Specify the filename of the mod_jk lib
LoadModule jk_module modules/mod_jk.so

# Where to find workers.properties
JkWorkersFile conf/workers.properties

# Where to put jk logs
JkLogFile logs/mod_jk.log

# Set the jk log level [debug/error/info]
JkLogLevel info

# Select the log format
JkLogStampFormat "[%a %b %d %H:%M:%S %Y]"

# JkOptions indicates to send SSK KEY SIZE
# Notes:
# 1) Changed from +ForwardURICompat.
# 2) For mod_rewrite compatibility, use +ForwardURIProxy (default since 1.2.24)
# See http://tomcat.apache.org/security-jk.html
JkOptions +ForwardKeySize +ForwardURICompatUnparsed -ForwardDirectories +ForwardURIProxy +ForwardURICompat


# JkRequestLogFormat
JkRequestLogFormat "%w %V %T"

# Mount your applications
#JkMount /__application__/* loadbalancer
# Let Apache serve the images
#JkUnMount /__application__/images/* loadbalancer

# You can use external file for mount points.
# It will be checked for updates each 60 seconds.
# The format of the file is: /url=worker
# /examples/*=loadbalancer
JkMountFile conf/uriworkermap.properties

# Add shared memory.
# This directive is present with 1.2.10 and
# later versions of mod_jk, and is needed for
# for load balancing to work properly
# Note: Replaced JkShmFile logs/jk.shm due to SELinux issues. Refer to
# https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=225452
JkShmFile run/jk.shm

JkMount /* loadbalancer
# Add jkstatus for managing runtime data
<Location /jkstatus>
JkMount status
Order deny,allow
Deny from none
Allow from All
</Location>