502 error
harshitkmr101
PROOP

2 months ago

My application was working fine a couple hours ago and is suddenly throwing 502 and that is a major hamper to the devleopment. Can you gyus please help ?

$10 Bounty

9 Replies

Railway
BOT

2 months ago

Hey there! We've found the following might help you get unblocked faster:

If you find the answer from one of these, please let us know by solving the thread!


brody
EMPLOYEE

2 months ago

This thread has been marked as public for community involvement, as it does not contain any sensitive or personal information. Any further activity in this thread will be visible to everyone.

Status changed to Open brody about 2 months ago


mateodemuynck
PRO

2 months ago

Hey,

Could you provide some logs and/or screenshots please ?


harshitkmr101
PROOP

2 months ago

Starting Container

INFO: Started server process [1]

INFO: Waiting for application startup.

2025-10-13 11:20:40,491 - backend.main - INFO - Starting FastAPI application...

2025-10-13 11:20:40,492 - apscheduler.scheduler - INFO - Adding job tentatively -- it will be properly scheduled when the scheduler starts

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - Cron scheduler configured:

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - - Job: Trigger Evaluation

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - - Interval: Every 30 seconds (TESTING MODE)

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - - Max Instances: 1 (prevents overlapping runs)

2025-10-13 11:20:40,493 - apscheduler.scheduler - INFO - Added job "Evaluate idle time triggers and create tickets" to job store "default"

2025-10-13 11:20:40,493 - apscheduler.scheduler - INFO - Scheduler started

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - Cron scheduler started!

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - Next run will be in 30 seconds... (TESTING MODE)

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - Running initial trigger evaluation on startup...

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - ================================================================================

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - Starting trigger evaluation cron job at 2025-10-13 11:20:40.493758

2025-10-13 11:20:40,493 - backend.cron_scheduler - INFO - ================================================================================

================================================================================

[2025-10-13 11:20:40.505086] Starting trigger evaluation...

================================================================================

And then the cron job keeps on running and its logs are all visible and working fine but I cannot seem to access the endpoint, it keeps returning the 502. So I know the backend is working fine but cannot hit any api or anything.


mateodemuynck
PRO

2 months ago

Do you have anything inside HTTP logs on Railway ?


harshitkmr101
PROOP

2 months ago

It got up for one request and then went back like this. I have no idea what is happening and why.

Attachments


passos
MODERATOR

2 months ago

Hi, can you send a screenshot of the 502 request expanded?


passos

Hi, can you send a screenshot of the 502 request expanded?

rafael-gtavares
FREE

2 months ago

O meu está dando a mesma coisa.
Api rodando e se conectando com o banco mas o erro persiste.


passos
MODERATOR

2 months ago

Vamos manter a thread em inglês (let's keep the thread in english). Also, I would recommend opening your own help thread and first read the following documentation on common pitfalls: https://docs.railway.com/reference/errors/application-failed-to-respond.


harshitkmr101
PROOP

2 months ago

Hey What do you mean by expanded? Its just straight up this page

Attachments


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