WayrApp Backend & Ecosystem Documentation - v1.0.0
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    Database Optimizer for Sovereign WayrApp Nodes

    Main optimization class that provides comprehensive database performance tuning for community-owned educational platforms. Designed to work autonomously with minimal administrator intervention while providing detailed insights when needed.

    Each method is optimized for the specific data patterns of language learning platforms: user progress tracking, content discovery, exercise completion, and educational analytics.

    DatabaseOptimizer

    Index

    Methods

    • Create Performance Indexes for Educational Platform Queries

      Automatically creates optimized database indexes specifically designed for common language learning platform operations. These indexes dramatically improve query performance for typical community usage patterns.

      Educational Platform Optimizations:

      • User progress and leaderboard queries
      • Course discovery and filtering
      • Exercise content search and retrieval
      • Learning analytics and reporting
      • Token management and cleanup

      The indexes are created using CONCURRENTLY to avoid blocking community users during optimization. Safe to run multiple times - existing indexes are automatically skipped.

      Community Impact:

      • Faster course browsing and search
      • Improved user progress tracking
      • Quicker exercise loading
      • Enhanced administrative reporting

      Returns Promise<void>

      Completes when all performance indexes are created

    • Analyze Database Statistics for Community Usage Patterns

      Examines the node's database statistics to understand how the community uses their educational platform. Provides insights into data distribution, query patterns, and optimization opportunities specific to this node's learning content and user behavior.

      Community Insights Provided:

      • Most frequently accessed courses and content
      • User engagement patterns and peak usage times
      • Content distribution across languages and levels
      • Database growth trends and storage optimization opportunities

      This analysis helps community administrators understand their platform's usage and make informed decisions about content organization and resource allocation.

      Returns Promise<any>

      Detailed statistics about the node's database usage patterns

    • Identify Slow Queries Affecting Community Experience

      Detects database queries that may be impacting the learning experience for community users. Focuses on educational platform operations that should be fast: course loading, exercise retrieval, progress updates.

      Educational Platform Focus:

      • Course and lesson loading performance
      • Exercise retrieval and submission speed
      • User progress calculation efficiency
      • Content search and discovery speed

      Requires pg_stat_statements extension (commonly available in managed database services). Provides actionable insights for community administrators to improve their platform's responsiveness.

      Returns Promise<any>

      List of slow queries with performance metrics and optimization suggestions

    • Optimize Database Configuration for Educational Workloads

      Applies database configuration optimizations specifically tuned for language learning platform workloads. Balances read performance (course browsing, content delivery) with write performance (progress tracking, exercise submissions).

      Educational Platform Optimizations:

      • Enhanced memory allocation for content queries
      • Parallel processing for complex learning analytics
      • Optimized statistics for course recommendation algorithms
      • Improved vacuum settings for user activity data

      These optimizations are safe and reversible, designed to improve the learning experience without requiring database expertise from community administrators.

      Returns Promise<void>

      Completes when database configuration is optimized

    • Clean Up Expired Data for Optimal Node Performance

      Removes expired and outdated data that can slow down the community's educational platform. Focuses on data that accumulates over time and doesn't impact the learning experience when removed.

      Automated Cleanup Tasks:

      • Expired authentication tokens (security and performance)
      • Old lesson completion records (keeps recent progress intact)
      • Temporary session data and cached content
      • Database statistics updates for optimal query planning

      Community Benefits:

      • Faster database queries and page loading
      • Reduced storage costs for community hosting
      • Improved backup and maintenance speed
      • Enhanced security through token cleanup

      Safe to run regularly - only removes data that doesn't affect the educational experience or user progress tracking.

      Returns Promise<void>

      Completes when expired data cleanup is finished

    • Get Database Size and Storage Information for Community Planning

      Provides detailed information about the node's database storage usage, helping community administrators understand their platform's growth and plan for future hosting needs.

      Community Planning Insights:

      • Total database size and growth trends
      • Storage usage by educational content type (courses, exercises, media)
      • User data storage requirements
      • Largest tables and optimization opportunities

      Use Cases:

      • Hosting cost planning and budgeting
      • Storage optimization and cleanup prioritization
      • Backup strategy planning
      • Migration and scaling decisions

      Essential for community administrators managing their node's infrastructure and planning for sustainable growth of their educational platform.

      Returns Promise<any>

      Detailed database size information and table breakdown

    • Monitor Database Connection Usage for Community Load Management

      Tracks database connection usage patterns to help community administrators understand their platform's load characteristics and optimize for peak learning periods.

      Community Load Insights:

      • Active connections during peak learning hours
      • Connection state distribution (active, idle, waiting)
      • Resource utilization patterns
      • Potential connection bottlenecks

      Educational Platform Context:

      • Class session peaks (synchronized learning activities)
      • Individual study patterns (evening/weekend usage)
      • Content creation periods (educator activity)
      • Assessment and testing load spikes

      Helps community administrators optimize their hosting configuration and understand when their educational platform experiences high demand.

      Returns Promise<any>

      Connection usage statistics and load distribution

    • Run Comprehensive Performance Analysis for Community Administrators

      Performs a complete health check and performance analysis of the node's database, providing community administrators with a comprehensive overview of their educational platform's technical health and optimization opportunities.

      Complete Analysis Includes:

      • Database size and growth trends
      • Connection usage and load patterns
      • Query performance and slow operation detection
      • Table statistics and data distribution
      • Storage optimization recommendations

      Community Administrator Dashboard:

      • Platform health score and key metrics
      • Performance trends and usage patterns
      • Actionable optimization recommendations
      • Capacity planning insights
      • Cost optimization opportunities

      Automated Scheduling:

      • Runs periodically via StartupManager
      • Provides historical performance tracking
      • Alerts for performance degradation
      • Proactive maintenance recommendations

      Essential for maintaining a high-quality learning experience and making informed decisions about the community's educational platform infrastructure.

      Returns Promise<any>

      Comprehensive performance analysis report with actionable insights