Deployed wrong database
I have an unusual problem. I have two Wasp apps on Railway and somehow, I've deployed the server component of the one app to the server container of the other app. Now, I have the wrong databases in Postgres on Railway. The user table is still correct. This is not a huge problem since there are no active users at the moment but I'm wondering how I can deploy the right database tables again.
Just deploying the server component as usual didn't work. The build goes through but the tables remain the same.
8 Replies
Hi @mb23. I'm kapa.ai, your friendly support bot. I will try to answer your question by searching through the knowledge base. :wave:
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It sounds like you're experiencing an issue with your database tables after deploying the wrong server component to one of your Railway apps. This is a common challenge when managing multiple Wasp applications on the same hosting platform.
To fix this issue and deploy the correct database tables, you'll need to run database migrations on your Railway deployment. Here's how you can approach this:
Solution: Run Database Migrations
1. First, you'll need to establish a connection to your production database. This requires creating a tunnel to your Railway PostgreSQL database:
(While this example uses Fly.io syntax, the concept is similar for Railway)
2. Set your local environment to point to the production database by updating your
.env.server file with the correct DATABASE_URL as described in the deployment docs.
3. Run database migrations to update your schema:
This will synchronize the database with your current schema definition as mentioned in the CLI reference.
4. After running the migrations, redeploy your server:
As described in the Railway deployment docs, make sure to select the server service when prompted.
Alternative Approach
If the above doesn't work, you might need to:
1. Delete the problematic tables in your Railway PostgreSQL database (keeping the user table intact since you mentioned it's correct)
2. Run the migrations again
3. Redeploy your server
Remember that when you have multiple Wasp apps, it's important to ensure each has its own uniquely named database to avoid conflicts, as this is a known issue that has been addressed in Wasp.
If you continue to have issues, you might need to check if there are any errors during the migration process or if there are any conflicts between your schema definitions.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @mb23, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?@kapa.ai But I have run the database migrations as part of the server build already. It says no migrations to apply. These other tables also don't appear in my migration files.
Let me check the knowledge base for you again. One moment! :books:
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I understand your frustration. If your migrations are showing "no migrations to apply" but you still have the wrong tables, there are a few possible issues at play.
Why Migrations Might Not Be Working
If the tables don't appear in your migration files, this suggests that either:
1. The wrong migration files are being applied to your database
2. The migrations exist in your local project but weren't properly copied to the deployed environment
3. The database might be using migrations from the other app
Possible Solutions
Here are some approaches to fix this issue:
1. Clean and Recreate Migrations
You might need to delete the existing migrations and create new ones:
This approach is similar to migrating from SQLite to PostgreSQL, where you need to start fresh with migrations.
2. Check Migration Status
Connect to your production database and check the status of migrations:
This will show you which migrations have been applied, helping you understand if the wrong migrations are being used.
3. Force Database Reset (if possible)
If you don't have important data yet:
1. Delete the database on Railway and create a new one
2. Update your connection string in your deployment
3. Deploy again with fresh migrations
4. Check for Schema Drift
Your database schema might be out of sync with your migrations. This is a known issue that Wasp has addressed. Try running:
With your local environment connected to the production database to see if it detects any schema drift.
If none of these approaches work, you might need to manually correct the database schema by connecting directly to the database and altering the tables to match your expected schema.
Let me know if you need more specific guidance based on which approach you'd like to try!
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @mb23, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?
@kapa.ai can I just remove and re-add the database in Railway and then it will be "rebuilt" with the next server build?
Let me check the knowledge base for you again. One moment! :books:
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Yes, removing and re-adding the database in Railway is a valid approach to solve your issue. When you deploy your server again after setting up a fresh database, the migrations will run automatically during the build process, creating all the correct tables according to your schema.
Here's how you can do it:
1. In Railway, delete your current PostgreSQL database instance
2. Create a new PostgreSQL database instance
3. Link this new database to your server service
4. Update the environment variables in your server service to point to the new database
5. Redeploy your server using:
This approach effectively gives you a clean slate. During the server deployment, Wasp will run
prisma migrate deploy which applies all your existing migrations to the fresh database, creating the correct schema as mentioned in the deployment documentation.
Since you mentioned there are no active users at the moment, this is probably the simplest and most straightforward solution to your problem.
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Note: you can ask me a follow up question by @ mentioning me again :speech_balloon:
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Sorry @mb23, I seem to be having a bit of trouble. Don't worry though, I've pinged my support and they will try to fix me up! :technologist:
Perhaps try again in 15mins?Hey @mb23 , hope it's going well. If you don't have any data in the database yet the best approach might be as you've said.
1. Delete the deployed database
2. Do the deployment process again with right server which will re-create the database and use correct migrations this time
@franjo This worked 🙂
Great, glad it worked 😁