Support setting a timeout for SQLite
Problem
Problem SQLite queries fail immediately if the DB is locked. I blindly tried passing arguments similarly to how the docs show for PostgreSQL, needless to say, it didn't work. [code block]
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1 Fix
Implement Timeout for SQLite Queries in Prisma
SQLite locks the database file during write operations, which can lead to immediate query failures if another operation tries to access the database while it is locked. Unlike PostgreSQL, SQLite does not automatically handle retries for locked databases, necessitating explicit timeout settings to manage such scenarios.
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- 1
Update Prisma Configuration
Modify the Prisma configuration to include a timeout setting for SQLite connections. This will allow queries to wait for a specified duration before failing due to a locked database.
prismadatasource db { provider = "sqlite" url = "file:./dev.db?timeout=5000" } - 2
Test Connection with Timeout
After updating the configuration, run a test query to ensure that the timeout is functioning correctly. This will help confirm that the application can handle locked database scenarios without immediate failure.
typescriptawait prisma.user.findMany(); - 3
Handle Query Failures Gracefully
Implement error handling in your application code to manage cases where queries still fail after the timeout. This can include retry logic or user notifications.
typescripttry { await prisma.user.findMany(); } catch (error) { console.error('Query failed:', error); } - 4
Monitor Database Locking Issues
Set up logging or monitoring for database locking issues to identify patterns or frequent occurrences. This will help in understanding if further optimizations are needed.
typescriptconsole.log('Monitoring database locks...');
Validation
To confirm the fix worked, execute multiple concurrent write operations to the SQLite database and ensure that queries do not fail immediately due to locking. Check logs for any timeout-related messages and verify that the application handles them as expected.
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Submitted by
Alex Chen
2450 rep