前言

• CentOS Linux release 8.2.2004 (Core)
• phpstdy X1.26
• nginx1.15

配置nginx日志出錯

nginx: [emerg] duplicate "log_format" name "main" in /usr/local/phpstudy/vhost/sys/nginx/sys.conf:8

名為 “main” 的 “log_format” 已存在，在/usr/local/phpstudy/vhost/sys/nginx/sys.conf 文件的第 8 行。

錯誤原因

我在nginx的配置文件/usr/local/phpstudy/soft/nginx/nginx-1.15/nginx/conf/nginx.conf中添加了名為 “main” 的 log_format。而/usr/local/phpstudy/vhost/sys/nginx/sys.conf文件已經存在名為 “main” 的 log_format （phpstdy 帶的）。因此產生錯誤：nginx: [emerg] duplicate "log_format" name "main" in /usr/local/phpstudy/vhost/sys/nginx/sys.conf:8。

/usr/local/phpstudy/soft/nginx/nginx-1.15/nginx/conf/nginx.conf的配置如下：

worker_processes auto; user www;error_log logs/error.log;events { use epoll; worker_connections 1024; multi_accept on; }http {lua_package_path "/www/common/waf_lua/?.lua;;";include mime.types;log_format main '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';gzip on; gzip_buffers 16 8k; gzip_comp_level 2; gzip_min_length 8k; gzip_types text/plain application/javascript text/css; keepalive_timeout 65;client_body_buffer_size 8m; client_header_buffer_size 32k; client_max_body_size 50m;include /usr/local/phpstudy/vhost/sys/nginx/*.conf; include /usr/local/phpstudy/vhost/nginx/*.conf; } stream {include /usr/local/phpstudy/vhost/nginx/*.stream; }

/usr/local/phpstudy/vhost/sys/nginx/sys.conf的配置如下：

map $time_iso8601 $logdate {'~^(?<ymd>\d{4}-\d{2}-\d{2})' $ymd;default 'date-not-found';}log_format main '$remote_addr - [$time_local] "$request"'$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_cookie"';access_log logs/access_$logdate.log main;sendfile on;limit_conn_zone $binary_remote_addr zone=perip:10m;limit_conn_zone $server_name zone=perserver:10m;proxy_cache_path proxy_cache levels=1:2 keys_zone=cache_one:100m inactive=2d max_size=1g;lua_shared_dict limit 50m;lua_shared_dict servers 1m;

解決辦法

保留一個名為 “main” 的 “log_format” 。

引申一個問題：如果想要為每個 server(或 vhost) 指定一個日志格式該如何？

定義不同名字的"log_format"。

比如，定了2個日志格式，分別名為server1、server2。

log_format server1 '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';log_format server2 '$remote_addr - $remote_user [$time_local] "$request" ''$status $body_bytes_sent "$http_referer" ''"$http_user_agent" "$http_x_forwarded_for"';

為每個 server指定一個日志格式。

server {...access_log /spool/vhost/logs/server1/access.log server1;... } server {...access_log /spool/vhost/logs/server2/access.log server2;... }

參考

http://nginx.org/en/docs/http/ngx_http_log_module.html

總結

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