Nginx+Tomcat负载均衡、动静分离
一、负载均衡+动静分离修改nginx/conf/nginx.conf，修改完后如下：
#usernobody;
worker_processes1;
#error_loglogs/error.log;
#error_loglogs/error.lognotice;
error_loglogs/error.loginfo;
pid logs/nginx.pid;
events {
worker_connections1024;
}
http {
include mime.types;
default_typeapplication/octet-stream;
#log_formatmain'$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_loglogs/access.logmain;
#设定请求缓冲
server_names_hash_bucket_size 128;
client_header_buffer_size 32k;
large_client_header_buffers 4 32k;
client_max_body_size 300m;
sendfile on;
tcp_nopush on;
keepalive_timeout 60;
tcp_nodelay on;
server_tokens off;
client_body_buffer_size 512k;
proxy_connect_timeout 5;
proxy_send_timeout 60;
proxy_read_timeout 5;
proxy_buffer_size 16k;
proxy_buffers 4 64k;
proxy_busy_buffers_size 128k;
proxy_temp_file_write_size 128k;
client_header_timeout3m;
client_body_timeout 3m;
send_timeout 3m;
gzip on;#开启gzip，节省带宽
gzip_min_length1100;
gzip_buffers 4 8k;
gzip_types text/plain text/css application/x-javascript image/bmp application/javascript;
output_buffers 1 32k;
postpone_output1460;
limit_rate_after 3m;#限速模块，前3M下载时不限速
limit_rate 512k; #限速模块
server {
listen 80;
server_namelocalhost;
#charset koi8-r;
access_loglogs/host.access.log;
#自动补全"/"
if (-d $request_filename){
rewrite ^/(.*)([^/])$ http://$host/$1$2/ last;
}
###################动静分离配置#######################
###################动态访问转向tomcat处理#######################
#location ~ \.(jsp|page|do)?$ {
# proxy_set_headerHost $host;
# proxy_set_headerX-Real-IP$remote_addr;
# proxy_pass http://mcul;#mcul与负载均衡upstream配置名称mcul一致
#}
###################设定访问静态文件直接读取不经过tomcat#########
#location ~ .*\.(htm|html|gif|jpg|jpeg|png|bmp|swf|ioc|rar|zip|txt|flv|mid|doc|ppt|pdf|xls|mp3|wma)${
# expires 30d;
#}
#location ~ .*\.(js|css)?$ {
# expires 1h;
#}
####################所有请求均有Tomcat处理############
location / {
root html;
indexindex.html index.htm;
proxy_passhttp://mcul;#mcul与负载均衡upstream配置名称mcul一致
}
###################动静分离配置#######################
##################404错误页#################
error_page404 /404.html;
location = /40x.html {
root html;
}
##################404错误页#################
# redirect server error pages to the static page /50x.html
#
##################50x错误页#################
error_page 500 502 503 504/50x.html;
location = /50x.html {
root html;
}
##################50x错误页#################
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_indexindex.php;
# fastcgi_paramSCRIPT_FILENAME/scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# denyall;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_namesomenamealiasanother.alias;
# location / {
# root html;
# indexindex.html index.htm;
# }
#}
############负载均衡配置###########
upstream mcul {
server 127.0.0.1:8080 weight=1;
server 127.0.0.1:9080 weight=2;
}
############负载均衡配置###########
# HTTPS server
#
#server {
# listen 443;
# server_namelocalhost;
# ssl on;
# ssl_certificate cert.pem;
# ssl_certificate_keycert.key;
# ssl_session_timeout5m;
# ssl_protocolsSSLv2 SSLv3 TLSv1;
# ssl_ciphersHIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# indexindex.html index.htm;
# }
#}
}
二、Session复制
1.修改Tomcat/conf/server.xml, 在<Engine name="."
..></Engine>标签中最后处添加以下代码：
注意：对于这一步各个版本的Tomcat代码可能，具体可看http://localhost:8080/docs/cluster-howto.html
<Cluster className="org.apache.catalina.ha.tcp.SimpleTcpCluster"
channelSendOptions="6">
<Manager className="org.apache.catalina.ha.session.BackupManager"
expireSessionsOnShutdown="false"
notifyListenersOnReplication="true"
mapSendOptions="6"/>
<!--
<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="auto"
port="5000"
selectorTimeout="100"
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"/>
<Interceptor className="org.apache.catalina.tribes.group.interceptors.ThroughputInterceptor"/>
</Channel>
<Valve className="org.apache.catalina.ha.tcp.ReplicationValve"
filter=".*\.gif|.*\.js|.*\.jpeg|.*\.jpg|.*\.png|.*\.htm|.*\.html|.*\.css|.*\.txt"/>
<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.修改应用的web.xml,在<web-app>结束标签前追加
<distributable/>
三、重启，测试
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