Apache2+Tomcat6负载均衡

不念不忘少年蓝@ 2022-09-29 04:12 108阅读 0赞

**Apache****，Tomcat集群，负载均衡**

1软件列表

·apache\_2.2.4-win32-x86-no\_ssl.msi

·tomcat6.0

·mod\_jk-1.2.26-httpd-2.2.4.so

2安装方法

·编辑系统配置文件WINDOWS/system32/drivers/etc/hosts，追加一行：127.0.0.1   localhost

· 将tomcat的连接文件mod\_jk-1.2.26-httpd-2.2.4.so复制到Apache安装目录下的modulers目录下

·编辑Apache配置文件conf/httpd.conf

在文件尾部追加内容：

LoadModule jk\_module modules/mod\_jk-1.2.26-httpd-2.2.4.so

JkWorkersFile conf/workers.properties

JkMount /\* lbcontroller

·在Apache安装目录下的conf目录下，新建workers.properties文件，编辑内容如下：

\#分发控制器，lbcontroller值对应conf/httpd.conf中的JkMount /\* lbcontroller

worker.list=lbcontroller

\#\#\#\#\#\#Tomcat1实例配置\#\#\#\#\#

\#tomcat1，对应tomcat的server.xml 中<Engine name="tomcat1" defaultHost="localhost" jvmRoute="tomcat1">的jvmRoute值

\#host值对应server.xml中的<Host name="localhost" appBase="webapps">以及hosts文件中的值

worker.tomcat1.host=localhost

\#port值对应server.xml中的节点<Connector port="8010" protocol="AJP/1.3" redirectPort="8443" />

worker.tomcat1.port=8010

worker.tomcat1.type=ajp13

\#分发权重，值越大负载越大

worker.tomcat1.lbfactor=1

\#Tomcat2实例配置

worker.tomcat2.host=localhost

worker.tomcat2.port=8011

worker.tomcat2.type=ajp13

worker.tomcat2.lbfactor=1

\#负载均衡分发控制器

worker.lbcontroller.type=lb

worker.lbcontroller.balance\_workers=tomcat1,tomcat2

worker.lbcontroller.sticky\_session=1

·修改各个tomcat配置文件server.xml，保持各端口相异

<Connector port="8001" protocol="HTTP/1.1"

connectionTimeout="20000"

redirectPort="8443" URIEncoding="UTF-8"/>

<Host name="localhost" appBase="webapps"

unpackWARs="true"  autoDeploy="true"

xmlValidation="false"  xmlNamespaceAware="false">

增加或从注释中释放以下两个节点：

1，<Valve className="org.apache.catalina.valves.RequestDumperValve"/>

2，<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"

channelSendOptions="8">

<Manager className="org.apache.catalina.ha.session.DeltaManager"

expireSessionsOnShutdown="false"

notifyListenersOnReplication="true"/>

<Membership className="org.apache.catalina.tribes.membership.McastService"

address="228.0.0.4"

port="45564"

frequency="500"

dropTime="3000"/>

<Receiver className="org.apache.catalina.tribes.transport.nio.NioReceiver"

address="auto"

port="4000"

autoBind="100"

selectorTimeout="5000"

maxThreads="6"/>

</Sender>

</Channel>

<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"

filter=""/>

<Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer"

tempDir="/tmp/war-temp/"

deployDir="/tmp/war-deploy/"

watchDir="/tmp/war-listen/"

watchEnabled="false"/>

</Cluster>

如果需要实现session 复制 需要在web.xml 中加上<distributable/>

<?xml version="1.0" encoding="ISO-8859-1"?>

<welcome-file-list>

<welcome-file>index.html</welcome-file>

<welcome-file>index.htm</welcome-file>

<welcome-file>index.jsp</welcome-file>

</welcome-file-list>

</web-app>

说明：

将web系统发布至各个tomcat的webapp下

通过localhost/myweb即可访问

Apache2+Tomcat6负载均衡

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