4. Database Management & Sync

4.1. Migrating an Initial Database

Import Guidelines

1. Preparing Your Dataset

   • Recommended initial dataset size: 1,000 - 5,000 records
   • Supported formats:

     {
       "formats": ["CSV"]
     }
     

   • Maximum file size: 100MB per upload

2. Data Structure Requirements

   field1,field2,field3,field4,field5
   value1,value2,value3,...
   ...
   

[!NOTE] 📸 Screenshot Needed: Data structure validation interface

Import Process

1. Using the Sync Interface

   # API endpoint for data import
   POST /api/v1/database/import
   
   # Supported query parameters
   ?chunk_size=1000
   ?validate_only=true
   ?dry_run=true
   

2. Batch Processing

   • Automatic chunking of large datasets
   • Progress tracking and resumability
   • Validation before import

[!NOTE] 📸 Screenshot Needed: Import progress interface with status indicators

Anti-Abuse Measures

1. Rate Limiting

   {
     "limits": {
       "requests_per_minute": 60,
       "concurrent_imports": 1,
       "max_file_size": "100MB",
       "max_records_per_import": 10000
     }
   }
   

2. Data Validation

   • Schema validation
   • Duplicate detection
   • Malicious content scanning

3. Access Control

   {
     "permissions": {
       "import": ["admin", "data_manager"],
       "validate": ["admin", "data_manager", "viewer"],
       "export": ["admin", "data_manager", "subscriber"]
     }
   }
   

[!NOTE] 📊 Diagram Needed: Security and validation flow chart

4.2. Post-Sync Verification

Data Integrity Checks

1. Automated Verification

   # Run integrity check
   yarn verify-data
   
   # Check specific tables
   yarn verify-data --table=users
   
   # Generate verification report
   yarn verify-data --report
   

2. Verification Metrics

   {
     "metrics": {
       "total_records": "integer",
       "failed_records": "integer",
       "duplicate_count": "integer",
       "missing_required_fields": "array",
       "invalid_format_fields": "array"
     }
   }
   

[!NOTE] 📸 Screenshot Needed: Data verification dashboard

Common Migration Issues

1. Data Type Mismatches

   {
     "common_issues": {
       "date_format": "Use ISO 8601 (YYYY-MM-DD)",
       "number_format": "Use decimal point, not comma",
       "boolean_values": ["true/false", "1/0", "yes/no"]
     }
   }
   

2. Character Encoding

   • Use UTF-8 encoding
   • Handle special characters
   • Convert legacy encodings

3. Missing Relations

   {
     "relation_checks": {
       "foreign_keys": "Ensure referenced records exist",
       "unique_constraints": "Check for duplicates",
       "required_associations": "Verify all required relations"
     }
   }
   

Troubleshooting Tools

1. Logging and Monitoring

   # View import logs
   yarn logs:import
   
   # Monitor sync status
   yarn sync:status
   
   # Debug specific record
   yarn debug:record --id=<record_id>
   

2. Data Recovery

   # Rollback last import
   yarn rollback:import
   
   # Export failed records
   yarn export:failed
   
   # Retry failed records
   yarn retry:failed
   

[!NOTE] 📸 Screenshot Needed: Troubleshooting dashboard with logs and tools

Best Practices

1. Pre-Import Checklist

   • Backup existing data
   • Validate data structure
   • Check system resources
   • Schedule during low-traffic periods

2. Performance Optimization

   {
     "optimization_tips": {
       "chunk_size": "Adjust based on memory",
       "indexes": "Create necessary indexes before import",
       "cache": "Clear cache before large imports"
     }
   }
   

3. Monitoring Guidelines

   • Watch system resources
   • Monitor error rates
   • Track import progress
   • Set up alerts for failures

[!NOTE] 📊 Diagram Needed: Import workflow with monitoring points

Recovery Procedures

1. Automatic Recovery

   {
     "recovery_options": {
       "auto_retry": "3 attempts",
       "checkpoint_interval": "1000 records",
       "rollback_on_failure": true
     }
   }
   

2. Manual Intervention

   • Export failed records
   • Fix data issues
   • Retry import
   • Verify fixes

3. Backup and Restore

   # Create backup
   yarn backup:create
   
   # List backups
   yarn backup:list
   
   # Restore from backup
   yarn backup:restore --id=<backup_id>
   

[!NOTE] 📸 Screenshot Needed: Recovery and backup management interface