tomcat负载均衡

er2121e · 发表于 2015-2-11 17:19:18

node2: #rpm -ivh jdk-7u67-linux-x64.rpm
      #vim /etc/profile.d/java.sh
         export JAVA_HOME=/usr/java/latest
         export PATH=$JAVA_HOME/bin:$PATH
      #tar xf apache-tomcat-7.-.55-C /usr/local
      #cd /usr/local
      #ln -sv apache-tomcat-7.0.55 tomcat
      #cd tomcat
      #useradd tomcat
      #chown -R tomcat.tomcat ./*
      #vim /etc/profile.d/tomcat.sh
         export CATALINA_HOME=/usr/local/tomcat
         export PATH=$CATALINA_HOME/bin:$PATH
      #su -tomcat -c ‘/usr/local/tomcat/bin/catalina.sh start’
      #cd /etc/profile.d/
      #scp java.sh tomcat.sh node3:/etc/profile.d/

node3: #rpm -ivh jdk-7u67-linux-x64.rpm
      #tar xf apache-tomcat-7.0.55 -C /usr/local
      #cd /usr/local
      #ln -sv apache-tomcat-7.0.55 tomcat
      #cd tomcat
      #useradd tomcat
      #chown -R tomcat.tomcat ./*
      #su -tomcat -c ‘/usr/local/tomcat/bin/catalina.sh start’
      #echo $PATH
      #catalina.sh start
      #ps aux | grep java（tomcat 身份运行java）
      #catalina.sh stop

node2:#cd /usr/local/tomcat/conf/
   #vim server.xml
<Enginename="Catalina"defaultHost="node2.stu7.com jvmRoute="TomcatA">
  <Host name="node2.stu7.com"  appBase="/webapps"
         unpackWARs="true" autoDeploy="true">
<Host name="node2.stu7.com"  appBase="/webapps"
         unpackWARs="true" autoDeploy="true">
         <Context path="" docBase="ROOT" reloadable="true" />
   </Host>

node2:#mkdir -pv /webapps/ROOT/{lib,classes, WEB-INF}
   # cd /webapps/ROOT/
   #vim index.jsp

<%@ page language="java" %>

<html>

<head><title>TomcatA</title></head>

<body>

<h1><font color="red">TomcatA.stu7.com</font></h1>

<tr>

<td>Session ID</td>

<% session.setAttribute("stu7.com","stu7.com"); %>

</tr>

<tr>

<td>Created on</td>

</tr>

</table>

</body>

</html>

#su -tomcat -c ‘catalina.sh start’
打开浏览器：172.16.249.125:8080

node2:#scp conf/server.xml node3:/usr/local/tomcat/conf/

node3:#mkdir -pv /webapps/ROOT/{lib,classes, WEB-INF}
#cd /webapps/ROOT/
#vim index.jsp

<%@ page language="java" %>

<html>

<head><title>TomcatB</title></head>

<body>

<h1><font color="blue">TomcatB.stu7.com</font></h1>

<tr>

<td>Session ID</td>

<% session.setAttribute("stu7.com","stu7.com"); %>

</tr>

<tr>

<td>Created on</td>

</tr>

</table>

</body>

</html>

#su -tomcat -c ‘catalina.sh start’

打开浏览器;172.16.249.126:8080

nginx方式：

node1:yum install nginx -y

#vim /etc/nginx/nginx.conf

upstream tcsrvs {

server 172.16.249.125:8080;

server 172.16.249.99:8080;

}

#vim /etc/nginx/conf.d/default.conf

location / {

#root /usr/share/nginx/html;

proxy_pass http://tcsrvs;

index index.html index.htm;

}

#nginx -t

#servce nginx start

打开浏览器：172.16.249.101

http方式:
node1:# httpd -M

proxy_balancer_module (shared)

proxy_http_module (shared)

proxy_ajp_module (shared)

#cd /etc/httpd/conf/

   #vim /httpd.conf
      #DocumentRoot "/var/www/html"
   #vim mod_http.conf (文件必须放在/etc/httpd/conf.d/)

NameVirtualHost *:80

BalancerMember http://172.16.249.125:8080 loadfactor=1

BalancerMember http://172.16.249.99:8080 loadfactor=1

ProxySet lbmethod=byrequests

</Proxy>

ServerName node4.stu7.com

ErrorLog logs/error_log

CustomLog logs/access_log common

ProxyVia On

ProxyRequests OFF

proxypreserveHost On

Order deny,allow

Allow from all

</Proxy>

Proxypass /status !

ProxyPass / balancer://tcsrvs/

proxypassReverse / balancer://tcsrvs/

Order deny,allow

Allow from all

</location>

</VirtualHost>

#service httpd start

#ss -tnl 80端口处于监听状态

打开浏览器：172.16.249.101：

ajp方式：

#cd /etc/httpd/conf/

   #vim /httpd.conf
      #DocumentRoot "/var/www/html"
   #vim mod_ajp.conf (文件必须放在/etc/httpd/conf.d/)

NameVirtualHost *:80

BalancerMember http://172.16.249.125:8009 loadfactor=1

BalancerMember http://172.16.249.99:8009 loadfactor=1

#ProxySet lbmethod=byrequests

</Proxy>

ServerName node4.stu7.com

ErrorLog logs/error_log

CustomLog logs/access_log common

ProxyVia On

ProxyRequests OFF

proxypreserveHost On

Order deny,allow

Allow from all

</Proxy>

Proxypass /status !

ProxyPass / balancer://tcsrvs/

proxypassReverse / balancer://tcsrvs/

Order deny,allow

Allow from all

</location>

</VirtualHost>

#service httpd start

#ss -tnl 80端口处于监听状态

打开浏览器：172.16.249.101：

制定管理页面不代理：

#cd /etc/httpd/conf.d/

#vim mod_ajp.conf

NameVirtualHost *:80

BalancerMember ajp://172.16.249.125:8009 loadfactor=1

BalancerMember ajp://172.16.249.99:8009 loadfactor=1

# ProxySet lbmethod=byrequests

</Proxy>

ServerName node4.stu7.com

ErrorLog logs/error_log

CustomLog logs/access_log common

ProxyVia On

ProxyRequests OFF

proxypreserveHost On

Order deny,allow

Allow from all

</Proxy>

SetHandler balancer-manager

Proxypass !

Order deny,allow

Allow from all

</Location>

Proxypass /status !

ProxyPass / balancer://tcsrvs/

proxypassReverse / balancer://tcsrvs/

Order deny,allow

Allow from all

</location>

</VirtualHost>

#serivce httpd restart

打开浏览器：172.16.249.101/balancer-manager

mod_jk方式：

#lftp 172.16.0.1/pub/Sources/6.x86_64/tomcat
   tomcat-connectors-1.2.40-src.tar.gz
#yum install httpd-devel -y
#tar xf tomcat-connectors-1.2.40-src.tar.gz
# cd tomcat-connectors-1.2.40-src/native
#./configure --with-apxs=`which apxs`
#make && make install
  #ls /usr/lib64/httpd/moudules/
  #cd /etc/httpd
  #vim conf.d/mod_jk.conf
   LoadModule jk_module modules/mod_jk.so
   JkWorkersFile /etc/httpd/conf.d/workers.properties
   JklogFile logs/mod_jk.log
   JklogLevel info
   JkMOunt /status !
   JkMount /jk-status StatA
   JkMount /* tcsrvs
#vim workers.properties

worker.list=tcsrvs,StatA

worker.TomcatA.port=8009

worker.TomcatA.host=172.16.249.125

worker.TomcatA.type=ajp13

worker.TomcatA.lbfactor=1

worker.TomcatB.port=8009

worker.TomcatB.host=172.16.249.99

worker.TomcatB.type=ajp13

worker.TomcatB.lbfactor=1

worker.tcsrvs.type=lb

worker.tcsrvs.sticky_session=0

worker.tcsrvs.balance_workers=TomcatA,TomcatB

worker.statA.type=status

#service httpd restart
打开浏览器：172.16.249.101：

session绑定：
#vim /usr/local/tomcat/conf/server.xml
<Enginename="Catalina"defaultHost="node2.stu7.com jvmRoute="TomcatA">
#su - tomcat -c ‘catalina.sh start’
#vim workers.properties

worker.list=tcsrvs,StatA

worker.TomcatA.port=8009

worker.TomcatA.host=172.16.249.125

worker.TomcatA.type=ajp13

worker.TomcatA.lbfactor=1

worker.TomcatB.port=8009

worker.TomcatB.host=172.16.249.99

worker.TomcatB.type=ajp13

worker.TomcatB.lbfactor=1

worker.tcsrvs.type=lb

worker.tcsrvs.sticky_session=1

worker.tcsrvs.balance_workers=TomcatA,TomcatB

worker.statA.type=status

#service httpd restart
打开浏览器：172.16.249.101：

Delta会话集群配置

node2:#nano server.xml
在Engine或Host组件内部定义Cluster组件：

<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="228.101.10.41"

port="45564"

frequency="500"

dropTime="3000"/>

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

address="172.16.249.125"

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>

#vim server.xml

<Enginename="Catalina"defaultHost="localhost"jvmRoute="TomcatA">

<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="228.101.10.24" 修改组播地址

port="45564"

frequency="500"

dropTime="3000"/>

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

address="172.16.249.125" 节点地址

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>

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

unpackWARs="true" autoDeploy="true">

node2#scp server.xml node3:/usr/local/tomcat/conf/server/xml
node3:#vim server.xml

<Enginename="Catalina"defaultHost="localhost"jvmRoute=TomcatB">

<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="228.101.10.24" 修改组播地址

port="45564"

frequency="500"

dropTime="3000"/>

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

address="172.16.249.99" 节点地址

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>

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

unpackWARs="true" autoDeploy="true">

node2:#cp web.xml /webapps/ROOT/WEB-INF/
   #cd /webapps/ROOT/WEB-INF/
   #vim web.xml
      添加<distributable />
   #scp web.xml node2:/webapps/ROOT/WEB-INF/
node2:#su - tomcat -c 'catalina.sh stop'
node2:#su - tomcat -c 'catalina.sh start'
node3:#su - tomcat -c 'catalina.sh stop'
node3:#su - tomcat -c 'catalina.sh start'
node2:#cd /usr/local/tomcat/
   #tail logs/catalina.out

打开浏览器：172.16.249.101：（无论怎么刷新都是session id一致)

说明：

确保Engine组件中存在jvmRoute属性，其值要与mod_jk配置中使用worker同名；

<Enginename="Catalina"defaultHost="localhost"jvmRoute="tomcatA">

为打算使用集群会话的webapp的web.xml配置文件（一般在META-INF）添加
<distributable/>

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