詳解Linux系統配置nginx的負載均衡
負載均衡的幾種方式:
1.輪詢:默認按照時間順序對所有服務器一個一個的訪問,如果有服務器宕機,會自動剔除;
2.weight:服務器的方位幾率和weight成正比,這個可以在服務器配置不均的時候進行配置;
3.ip_hash:對每個請求的ip進行hash計算,并按照一定的規則分配對應的服務器(可解決session共享);
4.fair:按照每臺服務器的響應時間(rt)來分配請求,rt知道優先分配;
5.url_hash:按照訪問url的hash值來分配請求;
NGINX配置文件:
user nginx;worker_processes auto;error_log /var/log/nginx/error.log;pid /run/nginx.pid;events { worker_connections 1024;}http { 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 /var/log/nginx/access.log main; sendfile on; tcp_nopush on; tcp_nodelay on; keepalive_timeout 65; types_hash_max_size 2048; include blockip.conf; #過慮IP include /etc/nginx/mime.types; default_type application/octet-stream; # Load modular configuration files from the /etc/nginx/conf.d directory. # See http://nginx.org/en/docs/ngx_core_module.html#include # for more information. include /etc/nginx/conf.d/*.conf; upstream www.域名.com { server IP1:端口; #服務器1 server IP2:端口; #服務器2 ip_hash; #負載均衡的規則 } server { listen 80 default_server; #NGINX 指向的服務域名 listen [::]:80 default_server; server_name IP; #NGINX 指向的服務器 IP root /usr/share/nginx/html; #NGINX HTML 目錄 # Load configuration files for the default server block. include /etc/nginx/default.d/*.conf; location / { proxy_pass http://www.域名.com; #nginx指向的域名 } error_page 404 /404.html; location = /40x.html { #404頁面 } error_page 500 502 503 504 /500.html; location = /500.html { #500頁面 } }}
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