| LVS群集 nginx+tomcat 项目拓扑图：  一.安装nginx + tomcat 192.168.1.248和192.168.1.249服务器上如下配置： 1. JDK的安装 将下载好的安装程序放到/soft目录下 cd /soft chmod a+x jdk-6u23-linux-i586.bin ./jdk-6u23-linux-i586.bin mkdir -p /data/conf mv jdk1.6.0_23/ /data/conf/jdk 删除系统中旧的版本 rm -rf /usr/bin/java rm -rf /usr/bin/javac 创建链接，设置新的版本 ln -s /data/conf/jdk/bin/java /usr/bin/java ln -s /data/conf/jdk/bin/javac /usr/bin/javac 查看新的版本信息 java -version javac -version 查看jdk版本是否是1.6.到此JDK已经安装完成 2. Tomcat安装 解压压缩文件 cd /soft tar xzvf apache-tomcat-6.0.32.tar.gz mv apache-tomcat-6.0.32 /data/conf/tomcat cd /data/conf/tomcat/bin/
添加用户 useradd webuser -s /sbin/nologin chown -R webuser:webuser /data/
tomcat优化选项 (1)添加tomcat管理员 # vi /usr/local/www/tomcat/conf/tomcat-users.xml 在 其中username="tomcat"为用户名password="li147258369"为密码 (2)修改JVM JAVA_OPTS="-Xms1024m -Xmx1024m -Xmn256m -Djava.awt.headless=true" (3)server.xml 参数修改 maxHttpHeaderSize="8192" useBodyEncodingForURI="true" maxThreads="600" 最大连接数 redirectPort="8443" enableLookups="false" 禁用DNS查询 compression="on" compressionMinSize="2048" 压缩,压缩大小 compressableMimeType="text/html,text/xml,text/javascript,text/css,text/plain" connectionTimeout="20000" disableUploadTimeout="true" /> 设置环境目录 vi /etc/profile TOMCAT_HOME=/data/conf/tomcat JAVA_HOME=/data/conf/jdk JRE_HOME=/data/conf/jdk/jre export JAVA_HOME JRE_HOME TOMCAT_HOME 备份tomcat配置文件 cd /data/conf/tomcat/conf mv server.xml server.xml.bak 设置tomcat配置文件,配置虚拟主机 vi server.xml 在后面添加 启动tomcat /data/conf/tomcat/bin/startup.sh 查看启动进程 ps -ef |grep tomcat 访问tomcat测试页,出现猫头网页，则安装成功！ links http://localhost:8080 3. 安装nginx 解压压缩文件 tar zxvf pcre-8.02.tar.gz cd pcre-8.02/ 编译安装 ./configure make && make install tar zxvf nginx-0.8.50.tar.gz cd nginx-0.8.50/ 编译安装 ./configure --prefix=/data/conf/nginx --with-http_stub_status_module make && make install 配置nginx配置文件 cd /data/conf/nginx 备份nginx.conf配置文件 mv nginx.conf nginx.conf.bak vi nginx.conf user nobody nobody; worker_processes 4; pid /data/conf/nginx/logs/nginx.pid; worker_rlimit_nofile 51200; events { use epoll; worker_connections 51200; } http{ include mime.types; default_type application/octet-stream; server_names_hash_bucket_size 128; client_header_buffer_size 32k; large_client_header_buffers 4 32k; client_max_body_size 8m; sendfile on; tcp_nopush on; keepalive_timeout 60; tcp_nodelay on; fastcgi_connect_timeout 300; fastcgi_send_timeout 300; fastcgi_read_timeout 300; fastcgi_buffer_size 64k; fastcgi_buffers 4 64k; fastcgi_busy_buffers_size 128k; fastcgi_temp_file_write_size 128k; gzip on; gzip_min_length 1k; gzip_buffers 4 16k; gzip_http_version 1.0; gzip_comp_level 2; gzip_types text/plain application/x-javascript text/css application/xml; gzip_vary on; upstream www { server 127.0.0.1:8080; } server { listen 80; server_name www.benet.com; location / { root /data/web/www.benet.com ; index index.jsp index.htm index.html; proxy_redirect off; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; proxy_pass http://www; } access_log /data/logs/benet.com/www.benet.access.log; server { server { } 检测配置文件是否存在错误 ./nginx -t 启动nginx 创建项目目录 mkdir /data/web/www.benet.com mkdir /data/web/www.accp.com mkdir /data/web/www.apache.com mkdir -p /data/logs/benet.com mkdir -p /data/logs/accp.com mkdir -p /data/logs/apache.com 建立测试网页 echo "This is benet home page !!!" > /data/web/www.benet.com/index.html echo "This is accp home page !!! " > /data/web/www.accp.com/index.html echo "This is apache home page !!!" > /data/web/www.apache.com/index.html 添加hosts记录 echo "192.168.1.248 www.benet.com" >> /etc/hosts echo "192.168.1.248 www.accp.com" >> /etc/hosts echo "192.168.1.248 www.apache.com" >> /etc/hosts 浏览测试网页，出现相应的网页，则配置完成。 links http://www.benet.com links http://www.accp.com links http://www.apache.com 4. sersync 同步配置，使得网站项目文件一致。 在192.168.1.248服务器上安装rsync tar xzvf rsync-3.0.7.tar.gz cd rsync-3.0.7 ./configure --prefix=/data/conf/rsync make && make install rpm -qa |grep rsync rpm -qf /usr/bin/rsync rpm -e rsync-2.6.8-3.1 ln -s /data/conf/rsync/bin/rsync /usr/bin/rsync 查看rsync版本 rsync -version 配置rsync配置文件 vi rsyncd.conf port = 873 max connections = 4 pid file = /data/conf/rsync/rsync.pid lock file = /data/conf/rsync/rsync.lock log file = /data/conf/rsync/rsync.log [dataweb] path = /data/web auth users = aa secrets file = /data/conf/rsync/conf/rsync.passwd uid = webuser gid = webuser read only = no 创建认证用户名和密码文件 vi /data/conf/rsync/conf/rsync.passwd aa:123456 启动rsync守护进程 rsync --daemon 在192.168.1.249安装sersync tar xzvf sersync2.5_32bit_binary_stable_final.tar.gz mv GNU-Linux-x86/ /data/conf/sersync cd /data/conf/sersync/ 配置sersync配置文件 vi confxml.xml 修改为 开启sersync守护进程 ./sersync2 -d 测试文件是否同步 在192.168.1.249服务器上/data/web/目录下创建些文件 在192.168.1.248服务器上/data/web/目录下看是否同步有相应的文件 LVS群集配置 1.客户端 就是真实服务器 在192.168.1.248和249服务器环回接口上绑定 虚拟ip vi /data/conf/realserver #!/bin/bash #description : start realserver VIP=192.168.1.100 /etc/rc.d/init.d/functions case "$1" in start) echo " start LVS of REALServer" /sbin/ifconfig lo:0 $VIP broadcast $VIP netmask 255.255.255.255 up echo "1" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "1" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "2" >/proc/sys/net/ipv4/conf/all/arp_announce ;; stop) /sbin/ifconfig lo:0 down echo "close LVS Directorserver" echo "0" >/proc/sys/net/ipv4/conf/lo/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/lo/arp_announce echo "0" >/proc/sys/net/ipv4/conf/all/arp_ignore echo "0" >/proc/sys/net/ipv4/conf/all/arp_announce ;; *) echo "Usage: $0 {start|stop}" exit 1 esac 开启虚拟IP cd /data/conf ./realserve start 查看虚拟IP ip add 或者 ifconfig 192.168.1.246 lvs主机------------192.168.1.247 lvs备份机 1. 在1.246和247上安装 ipvsadm yum -y install ipvsadm 2. 192.168.1.246 lvs主机安装keepalived 安装keepalived cd /soft tar xzvf keepalived-1.1.19_.tar.gz ./configure --prefix=/data/conf/keepalived make make install 创建keepalived目录 mkdir -p /etc/keepalived 创建keepalived.conf配置文件 vim /etc/keepalived/keepalived.conf #writed by sery , [email protected] #guration File for keepalived #global define global_defs { router_id LVS_CNC_1 } vrrp_sync_group VGM { group { VI_CACHE } } ################################################################ # vvrp_instance define # ################################################################ vrrp_instance VI_CACHE { state MASTER interface eth0 lvs_sync_daemon_inteface eth0 virtual_router_id 51 priority 180 advert_int 5 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.100 } } ############################################################## # virtual machine setting # ############################################################## # setting port 80 forward virtual_server 192.168.1.100 80 { delay_loop 6 lb_algo wlc lb_kind DR # persistence_timeout 20 protocol TCP real_server 192.168.1.248 80 { weight 100 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } real_server 192.168.1.249 80 { weight 100 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } 启动keepalived cd /data/conf/keepalived/sbin ./keepalived -D 查看keepalived进程，是否有3个进程 ps -ef |grep keepalived 查看ipvsadm ipvsadm -L -c 3. 192.168.1.247 lvs备份机 安装keepalived cd /soft tar xzvf keepalived-1.1.19_.tar.gz ./configure --prefix=/data/conf/keepalived make make install 创建keepalived目录 mkdir -p /etc/keepalived 创建keepalived.conf配置文件 #writed by sery , [email protected] #guration File for keepalived #global define global_defs { router_id LVS_CNC_2 } vrrp_sync_group VGM { group { VI_CACHE } } ################################################################ # vvrp_instance define # ################################################################ vrrp_instance VI_CACHE { state BACKUP interface eth0 lvs_sync_daemon_inteface eth0 virtual_router_id 51 priority 150 advert_int 5 authentication { auth_type PASS auth_pass 1111 } virtual_ipaddress { 192.168.1.100 } } ############################################################## # virtual machine setting # ############################################################## # setting port 80 forward virtual_server 192.168.1.100 80 { delay_loop 6 lb_algo wlc lb_kind DR # persistence_timeout 20 protocol TCP real_server 192.168.1.248 80 { weight 100 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } real_server 192.168.1.249 80 { weight 100 TCP_CHECK { connect_timeout 3 nb_get_retry 3 delay_before_retry 3 connect_port 80 } } } 启动keepalived cd /data/conf/keepalived/sbin ./keepalived -D 查看keepalived进程，是否有3个进程 ps -ef |grep keepalived 查看ipvsadm ipvsadm -L -c LVS群集测试： 设置hosts文件 192.168.1.100 www.benet.com 192.168.1.100 www.accp.com 192.168.1.100 www.apache.com 访问测试网页 http://www.benet.com 关闭LVS master主机，看是否还能访问测试网页不，如果能访问，则LVS配置成功了，若不行，则进行相应的排错啦、 |
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