Tomcat5.5.12配置負載均衡

Tomcat5.5.12配置負載均衡

參考：

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1：安裝準備

下載Tomcat5.5.12.zip;apache_2.0.55-win32-x86-no_ssl;mod_jk.dll;

2：解壓縮Tomcat5.5.12.zip設定環境變數（JAVA_HOME＝C:Program FilesJavajdk1.5.0_02），安裝apache_2.0.55-win32-x86-no_ssl（安裝時需要填寫本機的計算機名！！）

3：把mod_jk.dll COPY到..Apache2modules下，在..Apache2conf下建新檔案workers.properties，檔案內容：

#
# workers.properties
#

# In Unix, we use forward slashes:
ps=/

# list the workers by name

worker.list=tomcat1, tomcat2, loadbalancer

# ------------------------
# First tomcat server
# ------------------------
worker.tomcat1.port=11009
worker.tomcat1.host=localhost
worker.tomcat1.type=ajp13

# Specify the size of the open connection cache.
#worker.tomcat1.cachesize

#
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
# ----&gt lbfactor must be > 0
# ----&gt Low lbfactor means less work done by the worker.
worker.tomcat1.lbfactor=100

# ------------------------
# Second tomcat server
# ------------------------
worker.tomcat2.port=12009
worker.tomcat2.host=localhost
worker.tomcat2.type=ajp13

# Specify the size of the open connection cache.
#worker.tomcat2.cachesize

#
# Specifies the load balance factor when used with
# a load balancing worker.
# Note:
# ----&gt lbfactor must be > 0
# ----&gt Low lbfactor means less work done by the worker.
worker.tomcat2.lbfactor=100

# ------------------------
# Load Balancer worker
# ------------------------

#
# The loadbalancer (type lb) worker performs weighted round-robin
# load balancing with sticky sessions.
# Note:
# ----&gt If a worker dies, the load balancer will check its state
# once in a while. Until then all work is redirected to peer
# worker.
worker.loadbalancer.type=lb
worker.loadbalancer.balanced_workers=tomcat1, tomcat2

#
# END workers.properties
#

4：設定confhttpd.config檔案

在# Example:
# LoadModule foo_module modules/mod_foo.so
#下新增
LoadModule jk_module modules/mod_jk.dll

#
# Configure mod_jk
#
JkWorkersFile conf/workers.properties
JkLogFile logs/mod_jk.log
JkLogLevel info

在DocumentRoot "C:/Program Files/Apache Group/Apache2/htdocs"下新增：

JkMount /*.jsp loadbalancer
JkMount /* loadbalancer
JkMount /servlet/* loadbalancer

5:配置tomcat的server.xml檔案

（1）把改成
tomcat1：
tomcat2：

（2）把tomcat1：tomcat2：

（3）把tomcat1： tomcat2：

（4）把改成

（5）去掉註釋
……………………
className="org.apache.catalina.cluster.tcp.ReplicationListener"
tcpListenAddress="auto"
tomcat1： tcpListenPort="4001"
tomcat2： tcpListenPort="4002"
tcpSelectorTimeout="100"
tcpThreadCount="6"/>
……………………