17 days ago
Hi team,
We investigated repeated errors in the Railway Postgres service for project QMS (production). The database container itself is generally healthy after restart (logs show crash recovery and database system is ready to accept connections), but the schema and migration history are out of sync with the application code. That is causing runtime failures.
Root cause (summary)
Application code is ahead of the Railway database schema (migrations not fully applied).
Some migrations failed mid-run, leaving the DB in a half-applied state.
4 Replies
Status changed to Open Railway • 17 days ago
17 days ago
How are you running the database migration? If it's part of your application deployment, just redeploy your application service and it should sync the latest schema changes with your database.
17 days ago
If that doesn't help; sharing any relevant error logs will be helpful in resolving this issue.
17 days ago
If migrations are half-applied, a simple redeploy won't fix it, you need to resolve the broken state first.
Connect directly via railway connect or psql $DATABASE_URL and run:
SELECT * FROM alembic_version; ( or your migration table)
Find the last successful migration, manually mark the failed one as complete or roll it back, then rerun migrations cleanly.
What migration tool are you using (Alembic, Prisma, Django)?
darseen
If that doesn't help; sharing any relevant error logs will be helpful in resolving this issue.
17 days ago
Hi, thank you for your response.
That was half-applied / failed migration state. Another redeploy will keep hitting the same Prisma error until _prisma_migrations and the real schema are aligned. This works only after prisma migrate deploy succeeds once manually.
Status changed to Solved parsasamandi • 17 days ago