feat: Add SQLite database integration for aircraft history and callsign enhancement
- Implement comprehensive database package with versioned migrations - Add skyview-data CLI tool for managing aviation reference data - Integrate database with merger for real-time aircraft history persistence - Support OurAirports and OpenFlights data sources (runtime loading) - Add systemd timer for automated database updates - Fix transaction-based bulk loading for 2400% performance improvement - Add callsign enhancement system with airline/airport lookups - Update Debian packaging with database directory and permissions Database features: - Aircraft position history with configurable retention - External aviation data loading (airlines, airports) - Callsign parsing and enhancement - API client for external lookups (OpenSky, etc.) - Privacy mode for complete offline operation CLI commands: - skyview-data status: Show database statistics - skyview-data update: Load aviation reference data - skyview-data list: Show available data sources - skyview-data clear: Remove specific data sources 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
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docs/MIGRATION_GUIDE.md
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docs/MIGRATION_GUIDE.md
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# SkyView Database Migration Guide
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This guide covers the transition from SkyView's in-memory data storage to persistent SQLite database storage, introduced in version 0.1.0.
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## Overview of Changes
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### What's New
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- **Persistent Storage**: Aircraft position history survives restarts
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- **Callsign Enhancement**: Enriched aircraft information with airline/airport data
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- **Embedded Aviation Database**: OpenFlights airline and airport data included
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- **Configurable Retention**: Control how long historical data is kept
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- **Privacy Controls**: Comprehensive privacy mode for sensitive environments
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### What's Changed
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- **Memory Usage**: Reduced memory footprint for aircraft tracking
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- **Startup Time**: Slightly longer initial startup due to database initialization
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- **Configuration**: New database and callsign configuration sections
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- **File Structure**: New database file created in system or user directories
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## Pre-Migration Checklist
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### System Requirements
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- **Disk Space**: Minimum 100MB available for database and backups
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- **Permissions**: Write access to `/var/lib/skyview/` (system) or `~/.local/share/skyview/` (user)
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- **SQLite**: No additional installation required (embedded in SkyView)
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### Current Data
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⚠️ **Important**: In-memory aircraft data from previous versions cannot be preserved during migration. Historical tracking will start fresh after the upgrade.
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## Migration Process
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### Automatic Migration (Recommended)
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#### For Debian Package Users
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```bash
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# Update to new version
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sudo apt update && sudo apt upgrade skyview-adsb
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# Service will automatically restart and initialize database
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sudo systemctl status skyview
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```
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#### For Manual Installation Users
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```bash
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# Stop current SkyView instance
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sudo systemctl stop skyview # or kill existing process
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# Backup current configuration
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cp /etc/skyview/config.json /etc/skyview/config.json.backup
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# Start new version (database will be created automatically)
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sudo systemctl start skyview
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```
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### Manual Database Setup
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If automatic initialization fails, you can manually initialize the database:
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```bash
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# Create database directory
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sudo mkdir -p /var/lib/skyview
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sudo chown skyview:skyview /var/lib/skyview
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# Run SkyView with explicit database initialization
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sudo -u skyview /usr/bin/skyview --init-database --config /etc/skyview/config.json
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```
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## Configuration Updates
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### New Configuration Sections
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Add these sections to your existing `config.json`:
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```json
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{
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"database": {
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"path": "",
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"max_history_days": 7,
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"backup_on_upgrade": true
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},
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"callsign": {
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"enabled": true,
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"cache_hours": 24,
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"external_apis": true,
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"privacy_mode": false
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}
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}
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```
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### Configuration Migration
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#### Default System Configuration
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The new default configuration will be created at `/etc/skyview/config.json` if it doesn't exist:
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```json
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{
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"server": {
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"host": "",
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"port": 8080
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},
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"sources": [
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{
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"id": "local",
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"name": "Local Receiver",
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"host": "localhost",
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"port": 30005,
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"format": "beast",
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"latitude": 0,
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"longitude": 0,
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"altitude": 0,
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"enabled": true
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}
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],
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"settings": {
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"history_limit": 500,
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"stale_timeout": 60,
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"update_rate": 1
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},
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"origin": {
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"latitude": 51.4700,
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"longitude": -0.4600,
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"name": "Default Origin"
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},
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"database": {
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"path": "",
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"max_history_days": 7,
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"backup_on_upgrade": true
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},
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"callsign": {
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"enabled": true,
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"cache_hours": 24,
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"external_apis": true,
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"privacy_mode": false
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}
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}
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```
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#### Preserving Custom Settings
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If you have customized your configuration, merge your existing settings with the new sections:
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```bash
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# Backup original
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cp /etc/skyview/config.json /etc/skyview/config.json.original
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# Edit configuration to add new sections
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sudo nano /etc/skyview/config.json
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```
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## Privacy Configuration
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### Enabling Privacy Mode
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For sensitive environments that require no external data transmission:
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```json
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{
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"callsign": {
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"enabled": true,
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"external_apis": false,
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"privacy_mode": true,
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"cache_hours": 168
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}
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}
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```
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### Privacy Mode Features
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- **No External API Calls**: Completely disables OpenSky Network and other external APIs
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- **Local-Only Enhancement**: Uses embedded OpenFlights data for callsign lookup
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- **Offline Operation**: Full functionality without internet connectivity
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- **Compliance Ready**: Suitable for air-gapped or restricted networks
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## Post-Migration Verification
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### Database Verification
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```bash
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# Check database file exists and has correct permissions
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ls -la /var/lib/skyview/skyview.db
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# Should show: -rw-r--r-- 1 skyview skyview [size] [date] skyview.db
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# Verify database schema
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sqlite3 /var/lib/skyview/skyview.db "SELECT version FROM schema_info ORDER BY version DESC LIMIT 1;"
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# Should return current schema version number
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```
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### Service Health Check
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```bash
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# Check service status
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sudo systemctl status skyview
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# Check logs for any errors
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sudo journalctl -u skyview -f
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# Verify web interface accessibility
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curl -I http://localhost:8080/
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# Should return: HTTP/1.1 200 OK
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```
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### Feature Testing
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1. **Historical Data**: Verify aircraft positions persist after restart
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2. **Callsign Enhancement**: Check that airline names appear for aircraft with callsigns
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3. **Performance**: Monitor memory and CPU usage compared to previous version
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## Troubleshooting
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### Common Migration Issues
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#### Database Permission Errors
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```
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Error: unable to open database file
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```
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**Solution**:
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```bash
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sudo chown -R skyview:skyview /var/lib/skyview/
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sudo chmod 755 /var/lib/skyview/
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sudo chmod 644 /var/lib/skyview/skyview.db
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```
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#### Migration Failures
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```
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Error: migration failed at version X
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```
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**Solution**:
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```bash
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# Stop service
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sudo systemctl stop skyview
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# Remove corrupted database
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sudo rm /var/lib/skyview/skyview.db
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# Restart service (will recreate database)
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sudo systemctl start skyview
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```
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#### Configuration Conflicts
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```
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Error: unknown configuration field 'database'
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```
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**Solution**: Update configuration file with new sections, or reset to default configuration.
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### Rolling Back
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If you need to revert to the previous version:
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```bash
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# Stop current service
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sudo systemctl stop skyview
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# Install previous package version
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sudo apt install skyview-adsb=[previous-version]
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# Remove database directory (optional)
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sudo rm -rf /var/lib/skyview/
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# Restore original configuration
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sudo cp /etc/skyview/config.json.backup /etc/skyview/config.json
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# Start service
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sudo systemctl start skyview
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```
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⚠️ **Note**: Rolling back will lose all historical aircraft data stored in the database.
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## Performance Impact
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### Expected Changes
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#### Memory Usage
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- **Before**: ~50-100MB RAM for aircraft tracking
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- **After**: ~30-60MB RAM (reduced due to database storage)
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#### Disk Usage
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- **Database**: ~10-50MB depending on retention settings and traffic
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- **Backups**: Additional ~10-50MB for migration backups
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#### Startup Time
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- **Before**: 1-2 seconds
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- **After**: 2-5 seconds (database initialization)
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### Optimization Recommendations
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#### For High-Traffic Environments
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```json
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{
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"database": {
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"max_history_days": 3,
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"backup_on_upgrade": false
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},
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"settings": {
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"history_limit": 100
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}
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}
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```
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#### For Resource-Constrained Systems
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```json
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{
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"callsign": {
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"enabled": false
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},
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"database": {
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"max_history_days": 1
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}
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}
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```
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## Benefits After Migration
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### Enhanced Features
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- **Persistent History**: Aircraft tracks survive system restarts
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- **Rich Callsign Data**: Airline names, routes, and aircraft types
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- **Better Analytics**: Historical data enables trend analysis
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- **Improved Performance**: Reduced memory usage for long-running instances
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### Operational Improvements
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- **Service Reliability**: Database recovery after crashes
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- **Maintenance Windows**: Graceful restart without data loss
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- **Monitoring**: Historical data for performance analysis
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- **Compliance**: Privacy controls for regulatory requirements
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## Support
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### Getting Help
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- **Documentation**: Check `/usr/share/doc/skyview-adsb/` for additional guides
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- **Logs**: Service logs available via `journalctl -u skyview`
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- **Configuration**: Example configs in `/usr/share/skyview/examples/`
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- **Community**: Report issues at project repository
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### Reporting Issues
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When reporting migration issues, include:
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- SkyView version (before and after)
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- Operating system and version
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- Configuration file content
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- Error messages from logs
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- Database file permissions (`ls -la /var/lib/skyview/`)
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This migration enables SkyView's evolution toward more sophisticated aircraft tracking while maintaining the simplicity and reliability of the existing system.
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