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[经验分享] nginx+keeplive

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发表于 2018-11-12 09:00:18 | 显示全部楼层 |阅读模式
  nginx master 192.168.0.5
  nginx backup 192.168.0.6
  nginx_vip 192.168.0.100
  web1   192.168.0.7
  web2   192.168.0.8
  nginx_master和nginx_backup 安装代码
tar -zxvf pcre-8.31.tar.gz  安装pcre 让安装Nginx支持rewrite  
cd pcre-8.31
  
./configure
  
make
  
make install
  
添加用户组
  
groupadd www
  
useradd -g www www
  
tar -zxvf nginx-0.8.55.tar.gz
  
cd nginx-0.8.55
  
mkdir -p /usr/local/nginx
  
./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_ssl_module
  
make
  
make install
  安装过程中出现
  /usr/local/nginx/sbin/nginx: error whileloading shared libraries: libpcre.so.1: cannot open shared object file: No suchfile or directory
  解决办法:
  ldd$(which /usr/local/nginx/sbin/nginx)
  linux-gate.so.1 =>(0x008a8000)
  libpthread.so.0 => /lib/libpthread.so.0 (0x00643000)
  libcrypt.so.1 => /lib/libcrypt.so.1 (0x06806000)
  libpcre.so.1 => not found
  libssl.so.6 => /lib/libssl.so.6 (0x062e5000)
  libcrypto.so.6 => /lib/libcrypto.so.6(0x00ae2000)
  libdl.so.2 => /lib/libdl.so.2 (0x0063d000)
  libz.so.1 => /usr/lib/libz.so.1 (0x0065d000)
  libc.so.6 => /lib/libc.so.6 (0x004cc000)
  /lib/ld-linux.so.2 (0x004ae000)
  libgssapi_krb5.so.2 =>/usr/lib/libgssapi_krb5.so.2 (0x06236000)
  libkrb5.so.3 => /usr/lib/libkrb5.so.3 (0x06052000)
  libcom_err.so.2 => /lib/libcom_err.so.2 (0x00c41000)
  libk5crypto.so.3 => /usr/lib/libk5crypto.so.3 (0x0612b000)
  libresolv.so.2 => /lib/libresolv.so.2(0x00a06000)
  libkrb5support.so.0 => /usr/lib/libkrb5support.so.0 (0x06212000)
  libkeyutils.so.1 => /lib/libkeyutils.so.1 (0x00de8000)
  libselinux.so.1 => /lib/libselinux.so.1 (0x006c5000)
  libsepol.so.1 => /lib/libsepol.so.1(0x0067d000)
  解决办法:(启动缺少libpcre.so.1块)ln -s/usr/local/lib/libpcre.so.1 /lib/ 32位
  ln -s/usr/local/lib/libpcre.so.1 /lib64/ 64位
  安装完之后发现一个模块忘记安装了
  解决办法
/usr/local/nginx/sbin/nginx -V  查看已安装模块情况  
cd /home/nginx-0.8.55
  
./configure --prefix=/usr/local/nginx --user=www --group=www --with-http_stub_status_module --with-http_ssl_module
  
make
  
cp /usr/local/nginx/sbin/nginx /usr/local/nginx/sbin/nginx.bak
  
cp ./objs/nginx /usr/local/nginx/sbin/nginx
  
/usr/local/nginx/sbin/nginx -V
  如果不行的话,请高手指点
  MASTER和BACKUP都这样安装
  下面是NGINX.CONF
user  www www;  
worker_processes  2;
  
pid /usr/local/nginx/logs/nginx.pid;
  
worker_rlimit_nofile 51200;
  
#error_log  logs/error.log;
  
#error_log  logs/error.log  notice;
  
#error_log  logs/error.log  info;
  
#pid        logs/nginx.pid;
  
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 1.1;
  gzip_comp_level 2;
  gzip_types    text/plain application/x-javascript text/css application/xml;
  gzip_vary on;
  log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
  '$status $body_bytes_sent "$http_referer" '
  '"$http_user_agent" "$http_x_forwarded_for"';
  access_log  logs/access.log  main;
  upstream backend
  {
  ip_hash;
  server 192.168.0.7:80;
  server 192.168.0.8:80;
  }
  server {
  listen       80;
  server_name  www.zyg.com;
  location / {
  root   /var/www/html;
  index  index.html index.htm index.php;
  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://backend;
  }
  error_page  404              /404.html;
  error_page   500 502 503 504  /50x.html;
  location /nginx {
  access_log off;
  stub_status on;
  }
  }
  
}
  nginx安装完毕
  开始安装keepalived
tar -zxvf keepalived-1.1.15.tar.gz  
cd keepalived-1.1.15
  
mkdir -p /usr/local/keepalived
  
./configure --prefix=/usr/local/keepalived/
  
make
  
make install
  
cp /usr/local/keepalived/sbin/keepalived /usr/sbin/
  
cp /usr/local/keepalived/etc/sysconfig/keepalived /etc/sysconfig/
  
cp /usr/local/keepalived/etc/rc.d/init.d/keepalived /etc/init.d/
  配置文件
[root@localhost logs]# cat /etc/keepalived/keepalived.conf  
!Confiuration File for keeplived
  
global_defs {
  notification_email {
  zyg455178278@sina.com
  }
  notification_email_from keepalived@ chtopnet.com
  smtp_server 127.0.0.1
  smtp_connect_timeout 30
  route_id LVS_DEVEL
  
}
  
vrrp_instance VI_1 {
  state BACKUP
  interface eth0
  virtual_router_id 51
  mcast_src_ip 192.168.0.5
  priority 100
  advert_int 1
  authentication {
  auth_type PASS
  auth_pass chtopnet
  }
  virtual_ipaddress {
  192.168.0.100
  }
  
}
  日志文件
Nov 15 23:04:25 localhost Keepalived_vrrp: Configuration is using : 62250 Bytes  
Nov 15 23:04:25 localhost Keepalived_vrrp: VRRP_Instance(VI_1) Entering BACKUP STATE
  
Nov 15 23:04:25 localhost Keepalived_vrrp: VRRP sockpool: [ifindex(2), proto(112), fd(7,8)]
  
Nov 15 23:04:26 localhost Keepalived_vrrp: VRRP_Instance(VI_1) forcing a new MASTER election
  
Nov 15 23:04:27 localhost Keepalived_vrrp: VRRP_Instance(VI_1) Transition to MASTER STATE
  
Nov 15 23:04:28 localhost Keepalived_vrrp: VRRP_Instance(VI_1) Entering MASTER STATE
  
Nov 15 23:04:28 localhost Keepalived_vrrp: VRRP_Instance(VI_1) setting protocol VIPs.
  
Nov 15 23:04:28 localhost Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.0.100
  
Nov 15 23:04:28 localhost avahi-daemon[3695]: Registering new address record for 192.168.0.100 on eth0.
  
Nov 15 23:04:33 localhost Keepalived_vrrp: VRRP_Instance(VI_1) Sending gratuitous ARPs on eth0 for 192.168.0.100
  查看ipaddr是否有VIP
[root@localhost logs]# ip addr  
1: lo:  mtu 16436 qdisc noqueue
  link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
  inet 127.0.0.1/8 scope host lo
  inet6 ::1/128 scope host
  valid_lft forever preferred_lft forever
  
2: eth0:  mtu 1500 qdisc pfifo_fast qlen 1000
  link/ether 00:0c:29:09:32:67 brd ff:ff:ff:ff:ff:ff
  inet 192.168.0.5/24 brd 192.168.0.255 scope global eth0
  inet 192.168.0.100/32 scope global eth0
  inet6 fe80::20c:29ff:fe09:3267/64 scope link
  valid_lft forever preferred_lft forever
  
3: sit0:  mtu 1480 qdisc noop
  link/sit 0.0.0.0 brd 0.0.0.0
  最后模拟测试故障通过



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