Main service can no longer connect to Postgres through internal networking
shsiena
PROOP

3 months ago

Hi everyone, I have an app deployed on railway that has been working fine for a month straight with no changes.

All of a sudden, it seems like my main service is no longer able to reach my postgres service over the internal networking.

This is what I see in the logs from the main service:

Can't reach database server at `postgres.railway.internal:5432`
Please make sure your database server is running at `postgres.railway.internal:5432`.

and this is what I see in the postgres logs:

2025-11-27 16:26:30.683 UTC [92] WARNING:  pg_getnameinfo_all() failed: Temporary failure in name resolution
2025-11-27 16:26:30.683 UTC [92] LOG:  connection received: host=??? port=???
2025-11-27 16:26:30.684 UTC [92] LOG:  could not accept SSL connection: EOF detected
2025-11-27 16:26:30.885 UTC [95] LOG:  connection received: host=localhost port=53760
2025-11-27 16:26:30.886 UTC [95] LOG:  connection authorized: user=postgres database=railway application_name=psql
2025-11-27 16:26:30.891 UTC [95] LOG:  disconnection: session time: 0:00:00.006 user=postgres database=railway host=localhost port=53760

I have not made any recent changes that would have caused this.

My project id is e938e858-26d6-4eb7-9193-1c1488e8edfc

6 Replies

shsiena
PROOP

3 months ago

There is a very real possibility that I'm just a moron and configured something wrong, but I'm at all out of ideas for how to fix this. I would really appreciate any help


shsiena
PROOP

3 months ago

I'll be happy to provide any additional information


shsiena
PROOP

3 months ago

I've tried restarting both services, but it has not fixed it


shsiena
PROOP

3 months ago

the main service will also no longer build because it cannot connect to the postgres service


shsiena
PROOP

3 months ago

it seems like the environment is the problem, I made an exact copy and it works fine


shsiena
PROOP

3 months ago

this is very strange, any advice would be greatly appreciated


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