nginx启用stream日志配置文件

主配置文件/etc/nginx/nginx.conf增加内容：

stream {

    log_format proxy '$remote_addr [$time_local] '
                 '$protocol $status $bytes_sent $bytes_received '
                 '$session_time "$upstream_addr" '
                 '"$upstream_bytes_sent" "$upstream_bytes_received" "$upstream_connect_time"';

    access_log /var/log/nginx/tcp-access.log proxy ;
    open_log_file_cache off;
    include /etc/nginx/conf.d/*.stream;
}

具体的tcp.stream配置文件

 upstream TCP59001 {
        hash $remote_addr consistent;
        server 192.168.1.176:59001;
    }
        server {
        listen 59001;
        proxy_connect_timeout 5s;
        proxy_timeout 30s;
        proxy_pass TCP59001;
    }

nginx重读配置并检查tcp session日志的生成

nginx重读配置

nginx -s reload

检查日志

tail /var/log/nginx/tcp-access.log

192.168.3.218 [25/Apr/2017:17:55:57 +0800] TCP 200 103 122 10.671 "192.168.1.176:59001" "122" "103" "0.000"
192.168.3.218 [25/Apr/2017:17:55:57 +0800] TCP 200 55 74 4.714 "192.168.1.176:59001" "74" "55" "0.000"
192.168.3.218 [25/Apr/2017:17:55:57 +0800] TCP 200 71 90 6.171 "192.168.1.176:59001" "90" "71" "0.000"
192.168.3.218 [25/Apr/2017:17:55:57 +0800] TCP 200 55 74 4.707 "192.168.1.176:59001" "74" "55" "0.000"
192.168.9.1 [25/Apr/2017:18:49:20 +0800] TCP 200 3423 3438 3375.851 "192.168.1.176:59003" "3438" "3423" "0.000"
192.168.9.1 [25/Apr/2017:18:54:55 +0800] TCP 200 359 374 334.827 "192.168.1.176:59001" "374" "359" "0.001"

至此配置已经完成，upstream的日志已经顺利记录到文件。

配置经验

• 测试发现nginx会等待session结束才会记录到日志文件；
• session日志只是tcp层面的记录，包括session时间，发送接收字节数等等；
• session内部发送日志(比如一个socket连接建立起来以后，多次发送心跳数据）需要在应用层面才能记录；