Instance has abruptly stopped. TCP health check on port 8000 failed, restart attempt 2. Instance failed to start

[Sebastian]

Hi @PEIEE,

This error means that your service failed to respond to the TCP health check. You can find more information on these pages:

Troubleshooting Deployments

Exposing ports without health checks

Hi @Aks, Every exposed port of a web service must respond to a TCP or HTTP health check. If you want to expose service without health checks, you can change its type to worker. I hope it helps. Let us know if you need anything else!

Best way to respond to a tcp health check in node.js?

Hi @ajihugef, To pass the TCP health check, your app must simply listen on the exposed port. Check our GitHub repositories for examples: