From 74c77ba3ea3810d67f698696d48d5c29e1286fc4 Mon Sep 17 00:00:00 2001 From: Automated Action Date: Fri, 16 May 2025 06:59:18 +0000 Subject: [PATCH] Update README with enhanced database and migration documentation --- README.md | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/README.md b/README.md index 0d93fc5..cc2b7ac 100644 --- a/README.md +++ b/README.md @@ -133,6 +133,27 @@ The application is configured to use SQLite with the following database location The application automatically selects the first available and writable location from this list. +### Enhanced Database Reliability + +The application includes several features to ensure robust and reliable database operations: + +1. **Multi-path discovery**: Automatically finds and uses the first writable database location +2. **Directory creation**: Creates database directories if they don't exist +3. **Database initialization**: Initializes the database with required tables using both SQLAlchemy and direct SQLite +4. **Connection retry logic**: Automatically retries database connections with exponential backoff +5. **SQLite optimizations**: Uses WAL journal mode and other SQLite performance optimizations +6. **Error diagnostic logging**: Comprehensive error logging for easier troubleshooting +7. **Fallback mechanisms**: Falls back to direct SQLite operations if SQLAlchemy fails + +### Alembic Migration Enhancements + +Alembic migrations include robust error handling and initialization: + +1. **Pre-migration checks**: Verifies database directories exist and are writable +2. **Auto-creation**: Creates necessary directories and initializes the database file +3. **Retry logic**: Implements retry logic for migration operations +4. **Detailed diagnostics**: Provides detailed error information for failed migrations + ## Getting Started ### Installation @@ -149,6 +170,11 @@ The application automatically selects the first available and writable location alembic upgrade head ``` +The migration process will automatically: +1. Create the database directory if it doesn't exist +2. Initialize the database file if needed +3. Apply all migrations with retry logic for reliability + ### Starting the Application ```