nginx-proxy-manager Error 503 - Service temporarily unavailable

Checklist

Have you pulled and found the error with jc21/nginx-proxy-manager:latest docker image?
- Yes
Are you sure you're not using someone else's docker image?
- Yes
Have you searched for similar issues (both open and closed)?
- Yes

Describe the bug I have configured NPM in the correct way when it comes to port & traffic forwarding. When I use a domain with no traffic, it works well with no issue. When I use a domain with a lot of traffic on it (700-800 clients simultaneously), I get Error 503. I am using the same domain directly without passing to the proxy, and it is working perfectly fine. When I use Proxy and I keep refreshing the website, 1/4 of times works, 3/4 of times gives error 503. I use this to hide the IP of the streaming server.

""I have checked the logs and I am getting:

183#183: *127384 connect() failed (111: Connection r efused) while connecting to upstream, client: xxx.xxx.xxx.xxx, server: 0.0.0.0:8080, upstream: "xx.xx.xxx.xx:8080", bytes from/to client:0/0, bytes from/to upstre am:0/0""

Is there any way I can increase the load that it can handle? I want to set it to have no limits on traffic handling. Is there any way to do so?

Nginx Proxy Manager Version

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Nov 13 '24 11:11 a1hoxha

+1

Nov 13 '24 16:11 mynxg

2024/11/13 16:49:28 [error] 173#173: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 222..., server: nginxproxymanager, request: "POST /api/tokens HTTP/1.1", upstream: "http://127.0.0.1:3000/tokens", host: "117...:8888", referrer: "http://117...**:8888/login"

Nov 13 '24 16:11 mynxg

2024/11/13 16:49:28 [error] 173#173: *2 connect() failed (111: Connection refused) while connecting to upstream, client: 222..., server: nginxproxymanager, request: "POST /api/tokens HTTP/1.1", upstream: "http://127.0.0.1:3000/tokens", host: "117...:8888", referrer: "http://117...**:8888/login"

View the logs of Docker containers. 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Wrote JWT key pair to config file: /data/keys.json Current database version: none [initial-schema] Migrating Up... [initial-schema] auth Table created [initial-schema] user Table created [initial-schema] user_permission Table created [initial-schema] proxy_host Table created [initial-schema] redirection_host Table created [initial-schema] dead_host Table created [initial-schema] stream Table created [initial-schema] access_list Table created [initial-schema] certificate Table created [initial-schema] access_list_auth Table created [initial-schema] audit_log Table created [websockets] Migrating Up... [websockets] proxy_host Table altered [forward_host] Migrating Up... [forward_host] proxy_host Table altered [http2_support] Migrating Up... [http2_support] proxy_host Table altered [http2_support] redirection_host Table altered [http2_support] dead_host Table altered [forward_scheme] Migrating Up... [forward_scheme] proxy_host Table altered [disabled] Migrating Up... [disabled] proxy_host Table altered [disabled] redirection_host Table altered [disabled] dead_host Table altered [disabled] stream Table altered [custom_locations] Migrating Up... [custom_locations] proxy_host Table altered [hsts] Migrating Up... [hsts] proxy_host Table altered [hsts] redirection_host Table altered [hsts] dead_host Table altered [settings] Migrating Up... [settings] setting Table created [access_list_client] Migrating Up... [access_list_client] access_list_client Table created [access_list_client] access_list Table altered [access_list_client_fix] Migrating Up... [access_list_client_fix] access_list Table altered [pass_auth] Migrating Up... [pass_auth] access_list Table altered [redirection_scheme] Migrating Up... [redirection_scheme] redirection_host Table altered [redirection_status_code] Migrating Up... [redirection_status_code] redirection_host Table altered [stream_domain] Migrating Up... [stream_domain] stream Table altered [stream_domain] Migrating Up... Creating a new user: [email protected] with password: changeme Initial admin setup completed Default settings added Logrotate Timer initialized CMD: logrotate /etc/logrotate.d/nginx-proxy-manager Logrotate completed. Fetching IP Ranges from online services... Fetching https://ip-ranges.amazonaws.com/ip-ranges.json

An error is reported when it reaches this point.

Nov 13 '24 16:11 mynxg

Checked the reason: Part of it is an issue with the IP range. It's more appropriate to change it to the way of using environment variables.

Nov 14 '24 09:11 mynxg

The bug has been reproduced. The reason is that the mapping path in Docker is too long. It can be fixed by shortening the path a bit.

It has been resolved.

#start：docker compose -f docker-compose-nginx-proxy-manager.yml up -d
services:
  app:
    image: 'jc21/nginx-proxy-manager:latest'
    restart: unless-stopped
    ports:
      - '80:80' 
      - '81:81'  
      - '443:443' 
    volumes:
      - "/root/docker-data/npm/data:/data"
      - "/root/docker-data/npm/letsencrypt:/etc/letsencrypt"

Nov 14 '24 10:11 mynxg

该 bug 已复现，原因是 Docker 中的映射路径过长，可以通过稍微缩短路径来解决。

已解决。

#start：docker compose -f docker-compose-nginx-proxy-manager.yml up -d
services:
  app:
    image: 'jc21/nginx-proxy-manager:latest'
    restart: unless-stopped
    ports:
      - '80:80' 
      - '81:81'  
      - '443:443' 
    volumes:
      - "/root/docker-data/npm/data:/data"
      - "/root/docker-data/npm/letsencrypt:/etc/letsencrypt"

good，It's a problem with the mapping path being too long. If it's too short, it'll be fine immediately. Don't worry about any other databases or anything else

May 19 '25 10:05 WangGuan11

Issue is now considered stale. If you want to keep it open, please comment :+1:

Nov 19 '25 02:11 github-actions[bot]