haproxy简单负载均衡搭建
最近对负载均衡进行搭建具体方法如下:
- haproxy 修改部分(haproxy-cfg.cfg)
global daemon maxconn 4500 defaults mode http timeout connect 5000ms timeout client 50000ms timeout server 180000ms stats enable stats uri /stats stats auth admin:linkage!^* frontend http-in bind *:9090 default_backend dynamic_servers backend dynamic_servers mode http option httpclose option forwardfor header X-Forwarded-For appsession JSESSIONID len 52 timeout 30m balance roundrobin server server_9091 218.9.70.6:9091 maxconn 250 server server_9092 218.9.70.6:9092 maxconn 250 server server_9093 218.9.70.6:9093 maxconn 250 server server_9094 218.9.70.6:9094 maxconn 250 server server_9095 218.9.70.6:9095 maxconn 250
使用haproxy做端口转发,只需要修改tomcat的 到不同的端口(保证端口不被占用)
在haproxy映射即可。
启动方法 ./haproxy -f haproxy-cfg.cfg
haproxy 有编译好的版本,也可以自行编译参考方法
http://wenku.baidu.com/view/0a7a28154431b90d6c85c760.html
tomcat示例
<!-- Note: A "Server" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/server.html --> <Server port="9005" shutdown="SHUTDOWN"> <!--APR library loader. Documentation at /docs/apr.html --> <Listener className="org.apache.catalina.core.AprLifecycleListener" SSLEngine="on" /> <!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html --> <Listener className="org.apache.catalina.core.JasperListener" /> <!-- JMX Support for the Tomcat server. Documentation at /docs/non-existent.html --> <Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" /> <Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" /> <!-- Global JNDI resources Documentation at /docs/jndi-resources-howto.html --> <GlobalNamingResources> <!-- Editable user database that can also be used by UserDatabaseRealm to authenticate users --> <Resource name="UserDatabase" auth="Container" type="org.apache.catalina.UserDatabase" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" pathname="conf/tomcat-users.xml" /> </GlobalNamingResources> <!-- A "Service" is a collection of one or more "Connectors" that share a single "Container" Note: A "Service" is not itself a "Container", so you may not define subcomponents such as "Valves" at this level. Documentation at /docs/config/service.html --> <Service name="Catalina"> <!--The connectors can use a shared executor, you can define one or more named thread pools--> <!-- <Executor name="tomcatThreadPool" namePrefix="catalina-exec-" maxThreads="150" minSpareThreads="4"/> --> <!-- A "Connector" represents an endpoint by which requests are received and responses are returned. Documentation at : Java HTTP Connector: /docs/config/http.html (blocking & non-blocking) Java AJP Connector: /docs/config/ajp.html APR (HTTP/AJP) Connector: /docs/apr.html Define a non-SSL HTTP/1.1 Connector on port 8080 --> <Connector port="9091" protocol="HTTP/1.1" connectionTimeout="100000" redirectPort="8443" URIEncoding="gbk"/> <!-- A "Connector" using the shared thread pool--> <!-- <Connector executor="tomcatThreadPool" port="8081" protocol="HTTP/1.1" connectionTimeout="20000" redirectPort="8443" /> --> <!-- Define a SSL HTTP/1.1 Connector on port 8443 This connector uses the JSSE configuration, when using APR, the connector should be using the OpenSSL style configuration described in the APR documentation --> <!-- <Connector port="8443" protocol="HTTP/1.1" SSLEnabled="true" maxThreads="150" scheme="https" secure="true" clientAuth="false" sslProtocol="TLS" /> --> .....
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