系统运维 DBA职责
DB设计
DB备份，恢复：热备，冷备
DB安装，升级，补丁
DB账户管理
SQL review和优化
DB监控：cpu 内存
DB日志管理：
错误日志：errorlog
通用查询日志(初期使用)
二进制日志
慢查询日志
DB优化
Nginx Proxy & Load Balance & LNMP
Nginx Proxy Service E-commerce website Server 1: provide image request response ( apache / nginx ) Server 2: provide dynamic request response ( php-fpm / apache-php ) Server 3: provide static request response ( apache / nginx ) Server 4: provide data request response ( mysql ) It need one additional nginx server 1. Install nginx 2. proxy to specific server Example location / { proxy_pass http://192.168.199.187:80/; } location /bbs/ { proxy_pass http://192.168.199.187:80/bbs/; } location ~* \.(jpg|png|gif)$ { proxy_pass http://172.16.100.7; } Enhance the log information and specific the hostname location / { proxy_pass http://192.168.199.187:80/; proxy_set_header <parameter name> $host; (client requst the hostname ) proxy_set_header <parameter name> $remote_addr; ...
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