一、页面上显示接口504 gateway time-out
二、手动调用微服务接口正常,接口比较慢、返回内容比较多
三、查看nginx 日志
[error] 12831#0: *2102 upstream timed out (110: Connection timed out) while reading response header from upstream, client: 20.1.2.107, server: _, request: "GET```/gw/device
四、修改nginx超时时间、返回体大小上限
large_client_header_buffers 4 16k;
client_max_body_size 300m;
client_body_buffer_size 128k;
proxy_connect_timeout 600;
proxy_read_timeout 600;
proxy_send_timeout 600;
proxy_buffer_size 64k;
proxy_buffers 4 32k;
proxy_busy_buffers_size 64k;
proxy_temp_file_write_size 64k;
最后nginx重新加载配置
./nginx -s reload
验证ok