nginx 일정시간 연결 차단

events {
    worker_connections 1024;
}
http {
    upstream backend {
        server 10.0.0.1;
        server 10.0.0.2;
    }
 
    upstream naver_backend {
        server 10.0.0.1 max_fails=2 fail_timeout=300s;
        server 10.0.0.2 max_fails=2 fail_timeout=300s;
    }
 
    server {
        listen 80;
 
        location / {
            proxy_pass http://backend;
            proxy_next_upstream error timeout http_500 http_502 http_503 http_504 non_idempotent;
 
            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 /crawl/sns {
            proxy_pass http://backend;
            proxy_next_upstream error timeout http_500 http_502 http_503 http_504 non_idempotent;
 
            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 /crawl/naver/place {
            proxy_pass http://naver_backend;
            proxy_next_upstream error timeout http_500 http_502 http_503 http_504 non_idempotent;
 
            proxy_set_header Host $host;
            proxy_set_header X-Real-IP $remote_addr;
            proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        }
    }
}

503이 오면 그쪽으로 보내는 요청 한동안 막아둘 수 있음