原文来自于:http://heylinux.com/archives/2938.html
是由淘宝网发起的Web服务器项目。它在Nginx的基础上,针对大访问量网站的需求,添加了很多高级功能和特性。Tengine的性能和稳定性已经在大型的网站如淘宝网,天猫商城等得到了很好的检验。它的最终目标是打造一个高效、稳定、安全、易用的Web平台。
而本文章中的配置参数,都已经在生产环境中得到应用,针对10万高并发的状态以及8核CPU做了相应的优化。
1. 增大Nginx用户的open files数值
[root@idc1-server1 ~]$ sudo -i[root@idc1-server1 ~]# vim /etc/security/limits.confnginx hard nofile 102400nginx soft nofile 102400
2. 优化内核参数
[root@idc1-server1 ~]# vim /etc/sysctl.conf# For Nginxnet.ipv4.ip_forward = 0net.ipv4.conf.default.rp_filter = 1net.ipv4.conf.default.accept_source_route = 0kernel.sysrq = 0kernel.core_uses_pid = 1net.ipv4.tcp_syncookies = 1kernel.msgmnb = 65536kernel.msgmax = 65536kernel.shmmax = 68719476736kernel.shmall = 4294967296net.ipv4.tcp_max_tw_buckets = 6000net.ipv4.tcp_sack = 1net.ipv4.tcp_window_scaling = 1net.ipv4.tcp_rmem = 4096 87380 4194304net.ipv4.tcp_wmem = 4096 16384 4194304net.core.wmem_default = 8388608net.core.rmem_default = 8388608net.core.rmem_max = 16777216net.core.wmem_max = 16777216net.core.netdev_max_backlog = 262144net.core.somaxconn = 262144net.ipv4.tcp_max_orphans = 3276800net.ipv4.tcp_max_syn_backlog = 262144net.ipv4.tcp_timestamps = 0net.ipv4.tcp_synack_retries = 1net.ipv4.tcp_syn_retries = 1net.ipv4.tcp_tw_recycle = 1net.ipv4.tcp_tw_reuse = 1net.ipv4.tcp_mem = 94500000 915000000 927000000net.ipv4.tcp_fin_timeout = 1net.ipv4.tcp_keepalive_time = 30net.ipv4.ip_local_port_range = 1024 65000fs.file-max = 102400
[root@idc1-server1 ~]# sysctl -p
3. 安装并配置Tengine
[root@idc1-server1 ~]# /etc/init.d/nginx stop[root@idc1-server1 ~]# yum erase nginx[root@idc1-server1 ~]# useradd -M -g nginx -d /opt/tengine -s /sbin/nologin -c "Nginx web server" nginx[root@idc1-server1 ~]# mkdir -p /root/dong/downloads/
[root@idc1-server1 ~]# cd /root/dong/downloads/[root@idc1-server1 downloads]# yum install gcc gcc-c+= pcre-devel openssl openssl-devel[root@idc1-server1 downloads]# wget http://tengine.taobao.org/download/tengine-2.0.0.tar.gz[root@idc1-server1 downloads]# tar xzvf tengine-2.0.0.tar.gz[root@idc1-server1 downloads]# cd tengine-2.0.0[root@idc1-server1 tengine-2.0.0]# ./configure --prefix=/opt/tengine[root@idc1-server1 tengine-2.0.0]# make[root@idc1-server1 tengine-2.0.0]# make install[root@idc1-server1 tengine-2.0.0]# mkdir /opt/tengine/run[root@idc1-server1 tengine-2.0.0]# vim /opt/tengine/conf/nginx.conf
user nginx nginx;worker_processes 8;worker_cpu_affinity 00000001 00000010 00000100 00001000 00010000 00100000 01000000 10000000;error_log /opt/tengine/logs/error.log;pid /opt/tengine/run/nginx.pid;worker_rlimit_nofile 102400;events { use epoll; worker_connections 102400;}http { include mime.types; default_type application/octet-stream; charset utf-8; server_names_hash_bucket_size 128; client_header_buffer_size 4k; large_client_header_buffers 4 4k; client_max_body_size 8m; sendfile on; tcp_nopush on; keepalive_timeout 120; open_file_cache max=102400 inactive=20s; open_file_cache_min_uses 1; open_file_cache_valid 30s; tcp_nodelay on; 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 idc1-servers { check interval=3000 rise=2 fall=5 timeout=1000 type=http; check_http_send "GET /health HTTP/1.0\r\n\r\n"; check_http_expect_alive http_2xx http_3xx; server 10.100.1.10:80; server 10.100.1.11:80 down; server 10.100.1.12:80; server 10.100.1.13:80; server 10.100.1.14:80; server 10.100.1.15:80; server 10.100.1.16:80; server 10.100.1.17:80; server 10.100.1.18:80; server 10.100.1.19:80; server 10.100.1.20:80; } server { listen 80; server_name 10.100.1.2; location / { proxy_pass http://idc1-servers; proxy_set_header Host $host; proxy_set_header X-Real-IP $remote_addr; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } location /status { check_status; access_log off; } } log_format 10.100.1.2 '$remote_addr - $remote_user [$time_local] $request ' '"$status" $body_bytes_sent "$http_referer" ' '"$http_user_agent" "$http_x_forwarded_for"'; access_log /opt/tengine/logs/cluster.log 10.100.1.2;}
注:在上面的配置文件中,我用了一个/health页面来检测健康状态,如果返回值为2xx或3xx则视为正常。这样我们在需要手动对某些服务器进行隔离或升级的时候,就可以暂时移走这个页面使Nginx自动将其移出集群。
另外在/status页面上启用了集群的状态展示页面,可以像HAProxy一样看到每个后端服务器的状态。4. 启动Tengine并测试
[root@idc1-server1 tengine-2.0.0]# /opt/tengine/sbin/nginx -s reload访问链接:http://10.100.1.2/health