tomcat
2015-10-28 01:27
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为三台虚拟主机分别提供互相解析的hosts文件，并同步时间
LNMT：
client -->http --> nginx --> reverse_proxy --> http --> tomcat (http connector)
c7node1.wlw.com 192.168.0.22 tomcat服务器
C6node2.wlw.com 192.168.0.33 nginx反向代理
为c7node1.wlw.com创建webapp特有的目录结构,并提供首页文件
为C6node2.wlw.com提供nginx反向代理配置,除了jsp，do结尾的文件反向代理给tomcat处理，其他的静态文件由nginx处理
LAMT：
client --> http --> httpd --> reverse_proxy --> {http|ajp} --> tomcat {http connector|ajp connector}
c7node1.wlw.com 192.168.0.22 tomcat服务器C6node2.wlw.com 192.168.0.33 httpd反向代理
为C6node2.wlw.com提供http（主：proxy_module，子：proxy_module_http）反向代理配置
为C6node2.wlw.com提供http（主：proxy_module，子：proxy_module_ajp）反向代理配置
利用nginx实现tomcat的负载均衡
基于mod_jk的反向代理
编译安装mod_jk
利用httpd实现tomcat的负载均衡
①、 apache: mod_proxy，mod_proxy_http，mod_proxy_balancer
tomcat:http connector(端口为：8080)
②、 apache: mod_proxy，mod_proxy_ajp，mod_proxy_balancer
tomcat:ajp connector(端口为：9090)
③、 apache:mod_jk
tomcat:ajp connector（端口：9090）
配置mod_jk
Session Cluster：
session manager：会话管理器
StandardManager
PersistentManager：
FileStore
JDBC
DeltaManager
①、各节点配置使用deltamaanager
可以看到负载均衡后会话不会丢失
BackupManager
本文出自 “马尔高” 博客，请务必保留此出处http://kgdbfmwfn.blog.51cto.com/5062471/1707023
[root@c7node2 ~]# vim /etc/hosts 192.168.0.22 c7node1.wlw.com 192.168.0.11 c7node2.wlw.com 192.168.0.33 C6node2.wlw.com [root@c7node2 ~]# ansible tomcat -m copy -a 'src=/etc/hosts dest=/etc/' [root@c7node2 ~]# ansible all -a 'ntpdate cn.pool.ntp.org
LNMT：
client -->http --> nginx --> reverse_proxy --> http --> tomcat (http connector)
c7node1.wlw.com 192.168.0.22 tomcat服务器
C6node2.wlw.com 192.168.0.33 nginx反向代理
为c7node1.wlw.com创建webapp特有的目录结构,并提供首页文件
[root@c7node1 ~]# mkdir -pv /data/webapps/ROOT/{lib,classes,WEB-INF,META-INF}
[root@c7node1 ~]# vim /data/webapps/ROOT/index.jsp
<%@ page language="java" %>
<html>
<head><title>TomcatA</title></head>
<body>
<h1><font color="red">TomcatA </font></h1>
<table align="centre" border="1">
<tr>
<td>Session ID</td>
<% session.setAttribute("abc","abc"); %>
<td><%= session.getId() %></td>
</tr>
<tr>
<td>Created on</td>
<td><%= session.getCreationTime() %></td>
</tr>
</table>
</body>
</html>创建一个虚拟主机并设置为默认主机[root@c7node1 ~]# vim /usr/local/tomcat/conf/server.xml <Engine name="Catalina" defaultHost="c7node1.wlw.com"> ........ <Host name="c7node1.wlw.com" appBase="/data/webapps"> <Context path="" docBase="ROOT" /> <Valve className="org.apache.catalina.valves.AccessLogValve" directory="/data/logs" prefix="c7node1_access_log" suffix=".txt" pattern="%h %l %u %t "%r" %s %b" /> </Host> ........
为C6node2.wlw.com提供nginx反向代理配置,除了jsp，do结尾的文件反向代理给tomcat处理，其他的静态文件由nginx处理
[root@C6node2 ~]# vim /etc/nginx/conf.d/default.conf
location / {
}
location ~* \.(jsp|do)$ {
proxy_pass http://c7node1.wlw.com:8080/; }LAMT：
client --> http --> httpd --> reverse_proxy --> {http|ajp} --> tomcat {http connector|ajp connector}
c7node1.wlw.com 192.168.0.22 tomcat服务器C6node2.wlw.com 192.168.0.33 httpd反向代理
为C6node2.wlw.com提供http（主：proxy_module，子：proxy_module_http）反向代理配置
[root@C6node2 ~]# vim /etc/httpd/conf/httpd.conf <VirtualHost *:80> ServerName c7node1.wlw.com ProxyVia on ProxyPreserveHost on ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass / http://192.168.0.22:8080/ ProxyPassReverse / http://192.168.0.22:8080/ <Location /> Order allow,deny Allow from all </Location> </VirtualHost>
为C6node2.wlw.com提供http（主：proxy_module，子：proxy_module_ajp）反向代理配置
[root@C6node2 ~]# vim /etc/httpd/conf/httpd.conf <Location /balancer-manager> SetHandler balancer-manager Proxypass ! Order Deny,Allow Allow from all </Location> #状态页面 <VirtualHost *:80> ServerName c7node1.wlw.com ProxyVia on ProxyPreserveHost on ProxyRequests off <Proxy *> Order allow,deny Allow from all </Proxy> ProxyPass /status ! ProxyPass / ajp://192.168.0.22:8080/ ProxyPassReverse / ajp://192.168.0.22:8080/ <Location /> Order allow,deny Allow from all </Location> <Location /status> SetHandler server-status Order deny,allow Deny from all Allow from 192.168 </Location> </VirtualHost>
利用nginx实现tomcat的负载均衡
[root@C6node2 conf.d]# vim /etc/nginx/nginx.conf
http {
........
upstream tomcat {
server c7node1.wlw.com:8080;
server c7node2.wlw.com:8080;
}
server {
listen 80 default_server;
location / {
}
location ~* \.(jsp|do)$ {
# ip_hash; 如果需要基于源IP地址hash，可以添加此选项
proxy_pass http://tomcat; }
........
}基于mod_jk的反向代理
编译安装mod_jk
[root@C6node2 ~]# wget http://apache.fayea.com/tomcat/tomcat-connectors/jk/tomcat-connectors-1.2.41-src.tar.gz [root@C6node2 ~]# tar xf tomcat-connectors-1.2.41-src.tar.gz [root@C6node2 ~]# cd tomcat-connectors-1.2.41-src/native/ [root@C6node2 native]# yum install -y httpd-devel [root@C6node2 native]# ./configure --with-apxs=/usr/sbin/apxs [root@C6node2 native]# make && make install配置mod_jk
[root@C6node2 ~]# cd /etc/httpd/conf.d [root@C6node2 conf.d]# vim httpd-jk.conf LoadModule jk_module modules/mod_jk.so JkWorkersFile /etc/httpd/conf.d/workers.properties JkLogFile logs/mod_jk.log JkLogLevel debug JkMount /* TomcatA JkMount /status stat1 [root@C6node2 conf.d]# vim workers.properties worker.list=TomcatA,stat1 worker.TomcatA.port=9090 worker.TomcatA.host=192.168.0.11 worker.TomcatA.type=ajp13 worker.TomcatA.lbfactor=1 worker.stat1.type = status
利用httpd实现tomcat的负载均衡
①、 apache: mod_proxy，mod_proxy_http，mod_proxy_balancer
tomcat:http connector(端口为：8080)
[root@C6node2 conf]# vim /etc/httpd/conf/httpd.conf
<VirtualHost *:80>
ServerName c6node2.wlw.com
ProxyVia on
ProxyPreserveHost on
ProxyRequests off
<Proxy *>
Order allow,deny
Allow from all
</Proxy>
# Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED
<Proxy balancer://tomcatsr>
BalancerMember http://192.168.0.22:8080 loadfactor=1 route=TomcatA
BalancerMember http://192.168.0.11:8080 loadfactor=1 route=TomcatB
# ProxySet stickysession=ROUTEID 这里是基于route做绑定，可以添加上面Header信息，测试可加可不加
# ProxySet stickysession=JSESSIONID 这里基于session做绑定
</Proxy>
ProxyPass /status !
ProxyPass / balancer://tomcatsr/
ProxyPassReverse / balancer://tomcatsr/
<Location />
Order allow,deny
Allow from all
</Location>
<Location /status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from 192.168
</Location>
</VirtualHost>②、 apache: mod_proxy，mod_proxy_ajp，mod_proxy_balancer
tomcat:ajp connector(端口为：9090)
[root@C6node2 conf]# vim /etc/httpd/conf/httpd.conf
<VirtualHost *:80>
ServerName c6node2.wlw.com
ProxyVia on
ProxyPreserveHost on
ProxyRequests off
<Proxy *>
Order allow,deny
Allow from all
</Proxy>
# Header add Set-Cookie "ROUTEID=.%{BALANCER_WORKER_ROUTE}e; path=/" env=BALANCER_ROUTE_CHANGED
<Proxy balancer://tomcatsr>
BalancerMember ajp://192.168.0.22:9090 loadfactor=1 route=TomcatA
BalancerMember ajp://192.168.0.11:9090 loadfactor=1 route=TomcatB
# ProxySet stickysession=ROUTEID 这里是基于route做绑定，可以添加上面Header信息，测试可加可不加
# ProxySet stickysession=JSESSIONID 这里基于session做绑定
</Proxy>
ProxyPass /status !
ProxyPass / balancer://tomcatsr/
ProxyPassReverse / balancer://tomcatsr/
<Location />
Order allow,deny
Allow from all
</Location>
<Location /status>
SetHandler server-status
Order deny,allow
Deny from all
Allow from 192.168
</Location>
</VirtualHost>③、 apache:mod_jk
tomcat:ajp connector（端口：9090）
配置mod_jk
[root@C6node2 ~]# cd /etc/httpd/conf.d [root@C6node2 conf.d]# vim httpd-jk.conf LoadModule jk_module modules/mod_jk.so JkWorkersFile /etc/httpd/conf.d/workers.properties JkLogFile logs/mod_jk.log JkLogLevel debug JkMount /* lbcluster JkMount /status stat [root@C6node2 conf.d]# vim workers.properties worker.list = lbcluster,stat worker.TomcatA.type = ajp13 worker.TomcatA.host = 192.168.0.22 worker.TomcatA.port = 9090 #这里配置的是ajp connector的端口 worker.TomcatA.lbfactor = 5 worker.TomcatB.type = ajp13 worker.TomcatB.host = 192.168.0.11 worker.TomcatB.port = 9090 worker.TomcatB.lbfactor = 5 worker.lbcluster.type = lb worker.lbcluster.sticky_session = 0 #设置为1则开启session绑定 worker.lbcluster.balance_workers = TomcatA, TomcatB worker.stat.type = status
Session Cluster：
session manager：会话管理器
StandardManager
[root@c7node1 ROOT]# vim /usr/local/tomcat/conf/server.xml </Host> <Host name="c7node1.wlw.com" appBase="/data/webapps"> <Context path="" docBase="ROOT" /> <Manager className="org.apache.catalina.session.StandardManager" maxInactiveInterval="7200" /> </Host> [root@c7node1 ROOT]# pwd /usr/local/tomcat/work/Catalina/c7node1.wlw.com/ROOT [root@c7node1 ROOT]# ls org SESSIONS.ser #可以看到这里生成了SESSIONS.ser会话文件
PersistentManager：
FileStore
JDBC
DeltaManager
①、各节点配置使用deltamaanager
[root@c7node2 WEB-INF]# vim /usr/local/tomcat/conf/server.xml <Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster" channelSendOptions="8"> <Manager className="org.apache.catalina.ha.session.DeltaManager" expireSessionsOnShutdown="false" notifyListenersOnReplication="true"/> <Channel className="org.apache.catalina.tribes.group.GroupChannel"> <Membership className="org.apache.catalina.tribes.membership.McastService" address="228.0.4.8" 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 className="org.apache.catalina.tribes.transport.ReplicationTransmitter"> <Transport className="org.apache.catalina.tribes.transport.nio.PooledParallelSender"/> </Sender> <Interceptor className="org.apache.catalina.tribes.group.interceptors.TcpFailureDetector"/> <Interceptor className="org.apache.catalina.tribes.group.interceptors.MessageDispatch15Interceptor"/> </Channel> <Valve className="org.apache.catalina.ha.tcp.ReplicationValve" filter=""/> <Valve className="org.apache.catalina.ha.session.JvmRouteBinderValve"/> <Deployer className="org.apache.catalina.ha.deploy.FarmWarDeployer" tempDir="/tmp/war-temp/" deployDir="/tmp/war-deploy/" watchDir="/tmp/war-listen/" watchEnabled="false"/> <ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/> </Cluster>②、为需要使用session cluster的webapps开启session。添加distribution的功能
[root@c7node2 WEB-INF]# cp /usr/local/tomcat/conf/web.xml /data/webapps/ROOT/WEB-INF/ [root@c7node2 WEB-INF]# vim /data/webapps/ROOT/WEB-INF/web.xml ........ <distributable/> </web-app>
可以看到负载均衡后会话不会丢失
BackupManager
本文出自 “马尔高” 博客，请务必保留此出处http://kgdbfmwfn.blog.51cto.com/5062471/1707023
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