Tomcat+Nginx集群负载均衡

nginx配置

#user  nobody;

worker_processes  16;

error_log  logs/error.log  info;

pid        logs/nginx.pid;

worker_rlimit_nofile 65535;

events{

#use epoll;

worker_connections  4096;

}

http {

include       mime.types;

default_type  application/octet-stream;

log_format  main  ‘$remote_addr - $remote_user [$time_local] "$request" ‘

‘$status $body_bytes_sent "$http_referer" ‘

‘"$http_user_agent""$http_x_forwarded_for"‘;

client_max_body_size 300m;

client_header_buffer_size 32k;

large_client_header_buffers 4 32k;

sendfile on;

tcp_nopush on;

tcp_nodelay on;

keepalive_timeout 60;

client_header_timeout  3m;

client_body_timeout    3m;

send_timeout           3m;

gzip  on;

gzip_min_length 1k;

gzip_buffers 4 16k;

gzip_http_version 1.1;

gzip_comp_level 2;

#gzip_types application/xml;

gzip_vary on;

proxy_set_header Host $host:$server_port;

proxy_set_header X-Real-IP $remote_addr;

#proxy_set_header REMOTE-HOST $remote_addr;

proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;

proxy_connect_timeout   60;

proxy_send_timeout      60;

proxy_read_timeout      60;

proxy_buffer_size       16k;

proxy_buffers           4 64k;

proxy_busy_buffers_size 128k;

proxy_temp_file_write_size 128k;

upstream myserver {

#ip_hash;

sticky;

server localhost:8001 weight=1;

server localhost:8002 weight=1;

server localhost:8003 weight=1;

server localhost:8004 weight=1;

}

server {

listen 80;

server_name  192.168.1.50;

root  "../";

index index.html index.htm;

location / {

proxy_next_upstream http_500 http_502 http_503 error timeout invalid_header;

location ~ \.(jsp|action)$ {

proxy_pass http://myserver;

}

location ~ \.(gif|jpg|jpeg|png|bmp|swf|flv|mp4|mp3|GIF|JPG|JPEG|PNG|BMP)$ {

expires  30d;

}

location ~ \.(js|css|xml)?$ {

expires  1h;

}

}

error_page   500 502 503 504  /50x.html;

location = /50x.html {

root   html;

}

}

}

tomcat-server.xml配置

<?xml version="1.0" encoding="UTF-8"?>

<!--

Licensed to the Apache Software Foundation (ASF) under one or more

contributor license agreements.  See the NOTICE file distributed with

this work for additional information regarding copyright ownership.

The ASF licenses this file to You under the Apache License, Version 2.0

(the "License"); you may not use this file except in compliance with

the License.  You may obtain a copy of the License at

http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software

distributed under the License is distributed on an "AS IS" BASIS,

WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

See the License for the specific language governing permissions and

limitations under the License.

--><!-- 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="8001" shutdown="SHUTDOWN">

<!--APR library loader. Documentation at /docs/apr.html -->

<Listener SSLEngine="on" className="org.apache.catalina.core.AprLifecycleListener"/>

<!--Initialize Jasper prior to webapps are loaded. Documentation at /docs/jasper-howto.html -->

<Listener className="org.apache.catalina.core.JasperListener"/>

<!-- Prevent memory leaks due to use of particular java/javax APIs-->

<Listener className="org.apache.catalina.core.JreMemoryLeakPreventionListener"/>

<!-- 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 auth="Container" description="User database that can be updated and saved" factory="org.apache.catalina.users.MemoryUserDatabaseFactory" name="UserDatabase" pathname="conf/tomcat-users.xml" type="org.apache.catalina.UserDatabase"/>

</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 connectionTimeout="20000" port="8080" protocol="HTTP/1.1"

redirectPort="8663" URIEncoding="UTF-8" maxThreads="200"/>

<!-- A "Connector" using the shared thread pool-->

<!--

<Connector executor="tomcatThreadPool"

port="8080" 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" />

-->

<!-- Define an AJP 1.3 Connector on port 8009 -->

<Connector port="8009" protocol="AJP/1.3" redirectPort="8663"/>

<!-- An Engine represents the entry point (within Catalina) that processes

every request.  The Engine implementation for Tomcat stand alone

analyzes the HTTP headers included with the request, and passes them

on to the appropriate Host (virtual host).

Documentation at /docs/config/engine.html -->

<!-- You should set jvmRoute to support load-balancing via AJP ie :

<Engine name="Catalina" defaultHost="localhost" jvmRoute="jvm1">

-->

<Engine defaultHost="localhost" name="Catalina" jvmRoute="tomcat1">

<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="228.0.0.4"

port="45564"

frequency="500"

dropTime="3000"/>

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

address="192.168.1.71"

port="4001"

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.JvmRouteSessionIDBinderListener"/>

<ClusterListener className="org.apache.catalina.ha.session.ClusterSessionListener"/>

</Cluster>

<!--For clustering, please take a look at documentation at:

/docs/cluster-howto.html  (simple how to)

/docs/config/cluster.html (reference documentation) -->

<!--

<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"/>

-->

<!-- The request dumper valve dumps useful debugging information about

the request and response data received and sent by Tomcat.

Documentation at: /docs/config/valve.html -->

<!--

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

-->

<!-- This Realm uses the UserDatabase configured in the global JNDI

resources under the key "UserDatabase".  Any edits

that are performed against this UserDatabase are immediately

available for use by the Realm.  -->

<Realm className="org.apache.catalina.realm.UserDatabaseRealm" resourceName="UserDatabase"/>

<!-- Define the default virtual host

Note: XML Schema validation will not work with Xerces 2.2.

-->

<Host appBase="webapps" autoDeploy="true" name="localhost" unpackWARs="true" xmlNamespaceAware="false" xmlValidation="false">

<!-- SingleSignOn valve, share authentication between web applications

Documentation at: /docs/config/valve.html -->

<!--

<Valve className="org.apache.catalina.authenticator.SingleSignOn" />

-->

<!-- Access log processes all example.

Documentation at: /docs/config/valve.html -->

<!--

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"

prefix="localhost_access_log." suffix=".txt" pattern="common" resolveHosts="false"/>

-->

<Context  path ="/czb"   docBase ="C:/czb"   debug="0"    privileged="true" />

<Context  path ="/FileExtract"   docBase ="C:/FileExtract"   debug="0"    privileged="true" />

<Context  path ="/WebFiles"   docBase ="C:/WebFiles"   debug="0"    privileged="true" />

</Host>

</Engine>

</Service>

</Server>