ISSUE SUMMARY: Volume Mount Path Concatenation Bug
caseystubbs
HOBBYOP

3 months ago

Project Details:

  • Project ID: ae3b3975-f870-475b-8b94-70b5c17ac904
  • Service: PostgreSQL (Postgres)
  • Service ID: 94e38f1b-c417-418d-bce7-18752000baca

Affected Environments:

  • Production Environment ID: c9abb4e1-420c-484c-935b-413fd0ee08c0 (CRASHED)
  • Staging Environment ID: 380668c2-563e-4e17-b3ad-0034e1f6c831 (RUNNING)

Problem: The PostgreSQL service in production is crashing due to a volume mount path concatenation bug. Instead of using the correct mount path /var/lib/postgresql/data, the system is concatenating multiple copies of the path on each deployment.

Current Error:

Railway volume not mounted to the correct path, 
expected /var/lib/postgresql/data 
but got /var/lib/postgresql/data,/var/lib/postgresql/data,/var/lib/postgresql/data,/var/lib/postgresql/data

Volume Details:

  • Production Volume: postgres-volume-638- (ID: 8113f0ec-cb1a-4d74-a50c-da161643db81)
  • Staging Volume: postgres-volume (working correctly)
  • Mount Path: /var/lib/postgresql/data

Troubleshooting Attempted:

  1. Removed corrupted volume
  2. Created fresh volume with clean configuration
  3. Bug persists - path concatenation continues on each deployment

Impact: Production PostgreSQL service cannot start. Staging PostgreSQL works fine with identical configuration.

Solved

2 Replies

Status changed to Awaiting Railway Response Railway 3 months ago


sam-a
EMPLOYEE

2 months ago

Hey! I took a look at your project and found the issue. Your production Postgres service has 6 separate volumes all mounted at /var/lib/postgresql/data. When the system tries to mount all of them, it concatenates the paths together, which is why you're seeing that error.

Your staging environment only has 1 volume on the Postgres service, which is why it works fine.

To fix this, you'll need to remove the extra volumes from your production Postgres service, keeping only the one that has your data. You can do this from the service settings page under the Volumes section. Once you're down to a single volume, redeploy and it should start up normally.


Status changed to Awaiting User Response Railway 2 months ago


sam-a

Hey! I took a look at your project and found the issue. Your production Postgres service has **6 separate volumes** all mounted at `/var/lib/postgresql/data`. When the system tries to mount all of them, it concatenates the paths together, which is why you're seeing that error. Your staging environment only has 1 volume on the Postgres service, which is why it works fine. To fix this, you'll need to remove the extra volumes from your production Postgres service, keeping only the one that has your data. You can do this from the service settings page under the Volumes section. Once you're down to a single volume, redeploy and it should start up normally.

caseystubbs
HOBBYOP

2 months ago

Thanks i got it going appreciate it!


Status changed to Awaiting Railway Response Railway 2 months ago


Status changed to Solved sam-a 2 months ago


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