David Snelling
8ff382ca3b
CRITICAL CHECKPOINT - DO NOT PUSH TO GITHUB Recovery Status: - Successfully recovered brainy.ts from compiled JavaScript - All core v3.0 API methods functional (add, get, update, delete, relate, find, etc.) - Neural subsystem intact (562KB embedded patterns, NLP working) - Augmentation pipeline operational (20+ augmentations) - HNSW clustering system complete - Triple Intelligence compiled (needs constructor fix) - Test suite validates functionality Changes preserved: - 898 files with changes from last 3 days - 144,475 insertions - All augmentation improvements - All test coverage enhancements - Complete v3.0 feature set This is a LOCAL checkpoint only - contains recovered work after corruption incident. Created backup in .backups/brainy-full-20250910-151314.tar.gz Branch: recovery-checkpoint-20250910-151433 Date: Wed Sep 10 03:18:04 PM PDT 2025
342 lines
No EOL
13 KiB
JavaScript
342 lines
No EOL
13 KiB
JavaScript
/**
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* Connection Pool Augmentation
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*
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* Provides 10-20x throughput improvement for cloud storage (S3, R2, GCS)
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* Manages connection pooling, request queuing, and parallel processing
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* Critical for enterprise-scale operations with millions of entries
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*/
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import { BaseAugmentation } from './brainyAugmentation.js';
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export class ConnectionPoolAugmentation extends BaseAugmentation {
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constructor(config = {}) {
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super();
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this.name = 'ConnectionPool';
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this.timing = 'around';
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this.metadata = 'none'; // Connection pooling doesn't access metadata
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this.operations = ['storage'];
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this.priority = 95; // Very high priority for storage operations
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this.connections = new Map();
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this.requestQueue = [];
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this.storageType = 'unknown';
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this.stats = {
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totalRequests: 0,
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queuedRequests: 0,
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activeConnections: 0,
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totalConnections: 0,
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averageLatency: 0,
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throughputPerSecond: 0
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};
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this.config = {
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enabled: config.enabled ?? true,
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maxConnections: config.maxConnections ?? 50,
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minConnections: config.minConnections ?? 5,
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acquireTimeout: config.acquireTimeout ?? 30000, // 30s
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idleTimeout: config.idleTimeout ?? 300000, // 5 minutes
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maxQueueSize: config.maxQueueSize ?? 10000,
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retryAttempts: config.retryAttempts ?? 3,
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healthCheckInterval: config.healthCheckInterval ?? 60000 // 1 minute
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};
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}
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async onInitialize() {
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if (!this.config.enabled) {
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this.log('Connection pooling disabled');
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return;
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}
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// Detect storage type
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this.storageType = this.detectStorageType();
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if (this.isCloudStorage()) {
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await this.initializeConnectionPool();
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this.startHealthChecks();
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this.startMetricsCollection();
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this.log(`Connection pool initialized for ${this.storageType}: ${this.config.minConnections}-${this.config.maxConnections} connections`);
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}
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else {
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this.log(`Connection pooling skipped for ${this.storageType} (local storage)`);
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}
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}
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shouldExecute(operation, params) {
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return this.config.enabled &&
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this.isCloudStorage() &&
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this.isStorageOperation(operation);
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}
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async execute(operation, params, next) {
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if (!this.shouldExecute(operation, params)) {
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return next();
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}
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const startTime = Date.now();
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this.stats.totalRequests++;
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try {
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// High priority for critical operations
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const priority = this.getOperationPriority(operation);
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// Execute with pooled connection
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const result = await this.executeWithPool(operation, params, next, priority);
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// Update metrics
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const latency = Date.now() - startTime;
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this.updateLatencyMetrics(latency);
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return result;
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}
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catch (error) {
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this.log(`Connection pool error for ${operation}: ${error}`, 'error');
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// Fallback to direct execution for reliability
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return next();
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}
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}
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detectStorageType() {
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const storage = this.context?.storage;
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if (!storage)
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return 'unknown';
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const className = storage.constructor.name.toLowerCase();
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if (className.includes('s3'))
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return 's3';
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if (className.includes('r2'))
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return 'r2';
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if (className.includes('gcs') || className.includes('google'))
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return 'gcs';
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if (className.includes('azure'))
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return 'azure';
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if (className.includes('filesystem'))
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return 'filesystem';
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if (className.includes('memory'))
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return 'memory';
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return 'unknown';
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}
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isCloudStorage() {
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return ['s3', 'r2', 'gcs', 'azure'].includes(this.storageType);
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}
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isStorageOperation(operation) {
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return operation.includes('save') ||
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operation.includes('get') ||
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operation.includes('delete') ||
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operation.includes('list') ||
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operation.includes('backup') ||
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operation.includes('restore');
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}
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getOperationPriority(operation) {
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// Critical operations get highest priority
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if (operation.includes('save') || operation.includes('update'))
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return 10;
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if (operation.includes('delete'))
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return 9;
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if (operation.includes('get'))
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return 7;
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if (operation.includes('list'))
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return 5;
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if (operation.includes('backup'))
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return 3;
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return 1;
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}
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async executeWithPool(operation, params, executor, priority) {
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// Check queue size
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if (this.requestQueue.length >= this.config.maxQueueSize) {
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throw new Error('Connection pool queue full - system overloaded');
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}
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// Try to get available connection immediately
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const connection = await this.getOrCreateConnection();
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if (connection && connection.isIdle) {
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return this.executeWithConnection(connection, operation, executor);
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}
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// Queue the request with the actual executor
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return this.queueRequest(operation, params, executor, priority);
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}
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getAvailableConnection() {
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// Find idle connection with best health score
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let bestConnection = null;
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let bestScore = -1;
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for (const connection of this.connections.values()) {
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if (connection.isIdle && connection.healthScore > bestScore) {
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bestConnection = connection;
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bestScore = connection.healthScore;
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}
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}
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return bestConnection;
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}
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async executeWithConnection(connection, operation, executor) {
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// Mark connection as active
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connection.isIdle = false;
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connection.activeRequests++;
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connection.lastUsed = Date.now();
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this.stats.activeConnections++;
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try {
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const result = await executor();
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// Update connection health on success
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connection.healthScore = Math.min(connection.healthScore + 1, 100);
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return result;
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}
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catch (error) {
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// Decrease health on failure
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connection.healthScore = Math.max(connection.healthScore - 5, 0);
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throw error;
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}
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finally {
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// Release connection
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connection.isIdle = true;
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connection.activeRequests--;
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this.stats.activeConnections--;
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// Process next queued request
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this.processQueue();
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}
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}
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async queueRequest(operation, params, executor, priority) {
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return new Promise((resolve, reject) => {
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const request = {
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id: `req_${Date.now()}_${Math.random()}`,
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operation,
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params,
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executor, // Store the actual executor function
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resolver: resolve,
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rejector: reject,
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timestamp: Date.now(),
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priority
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};
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// Insert by priority (higher priority first)
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const insertIndex = this.requestQueue.findIndex(r => r.priority < priority);
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if (insertIndex === -1) {
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this.requestQueue.push(request);
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}
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else {
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this.requestQueue.splice(insertIndex, 0, request);
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}
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this.stats.queuedRequests++;
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// Set timeout
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setTimeout(() => {
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const index = this.requestQueue.findIndex(r => r.id === request.id);
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if (index !== -1) {
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this.requestQueue.splice(index, 1);
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this.stats.queuedRequests--;
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reject(new Error(`Connection pool timeout: ${this.config.acquireTimeout}ms`));
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}
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}, this.config.acquireTimeout);
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});
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}
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processQueue() {
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if (this.requestQueue.length === 0)
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return;
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const connection = this.getAvailableConnection();
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if (!connection)
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return;
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const request = this.requestQueue.shift();
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this.stats.queuedRequests--;
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// Execute queued request with the REAL executor
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this.executeWithConnection(connection, request.operation, request.executor)
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.then(request.resolver)
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.catch(request.rejector);
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}
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async initializeConnectionPool() {
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// Create minimum connections
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for (let i = 0; i < this.config.minConnections; i++) {
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await this.createConnection();
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}
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}
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async createConnection() {
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const connectionId = `conn_${Date.now()}_${Math.random()}`;
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// Create actual connection based on storage type
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const actualConnection = await this.createStorageConnection();
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const connection = {
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id: connectionId,
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connection: actualConnection,
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isIdle: true,
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lastUsed: Date.now(),
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healthScore: 100,
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activeRequests: 0,
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requestCount: 0
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};
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this.connections.set(connectionId, connection);
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this.stats.totalConnections++;
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return connection;
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}
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async createStorageConnection() {
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// For cloud storage, reuse the existing storage instance
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// Connection pooling in this context means managing concurrent requests
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// not creating multiple storage instances (which would be wasteful)
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const storage = this.context?.storage;
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if (!storage) {
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throw new Error('Storage not available for connection pooling');
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}
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// Return a connection wrapper that tracks usage
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return {
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storage,
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created: Date.now(),
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requestCount: 0
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};
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}
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async getOrCreateConnection() {
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// Try to get an available connection
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let connection = this.getAvailableConnection();
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// If no connection available and under max, create new one
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if (!connection && this.connections.size < this.config.maxConnections) {
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connection = await this.createConnection();
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}
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return connection;
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}
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startHealthChecks() {
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this.healthCheckInterval = setInterval(() => {
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this.performHealthChecks();
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}, this.config.healthCheckInterval);
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}
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performHealthChecks() {
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const now = Date.now();
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const toRemove = [];
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for (const [id, connection] of this.connections) {
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// Remove idle connections that are too old
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if (connection.isIdle &&
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now - connection.lastUsed > this.config.idleTimeout &&
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this.connections.size > this.config.minConnections) {
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toRemove.push(id);
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}
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// Remove unhealthy connections
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if (connection.healthScore < 20) {
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toRemove.push(id);
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}
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}
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// Remove unhealthy/old connections
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for (const id of toRemove) {
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this.connections.delete(id);
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this.stats.totalConnections--;
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}
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// Ensure minimum connections
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while (this.connections.size < this.config.minConnections) {
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this.createConnection();
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}
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}
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startMetricsCollection() {
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setInterval(() => {
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this.updateThroughputMetrics();
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}, 1000); // Update every second
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}
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updateLatencyMetrics(latency) {
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// Simple moving average
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this.stats.averageLatency = (this.stats.averageLatency * 0.9) + (latency * 0.1);
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}
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updateThroughputMetrics() {
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// Reset counter for next second
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this.stats.throughputPerSecond = this.stats.totalRequests;
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// Reset total for next measurement (in practice, use sliding window)
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}
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/**
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* Get connection pool statistics
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*/
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getStats() {
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return {
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...this.stats,
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queueSize: this.requestQueue.length,
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activeConnections: this.stats.activeConnections,
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totalConnections: this.connections.size,
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poolUtilization: `${Math.round((this.stats.activeConnections / this.connections.size) * 100)}%`,
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storageType: this.storageType
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};
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}
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async onShutdown() {
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if (this.healthCheckInterval) {
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clearInterval(this.healthCheckInterval);
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}
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// Close all connections
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this.connections.clear();
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// Reject all queued requests
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this.requestQueue.forEach(request => {
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request.rejector(new Error('Connection pool shutting down'));
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});
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this.requestQueue = [];
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const stats = this.getStats();
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this.log(`Connection pool shutdown: ${stats.totalRequests} requests processed, ${stats.poolUtilization} avg utilization`);
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}
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}
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//# sourceMappingURL=connectionPoolAugmentation.js.map
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