David Snelling
26c7d61185
Current state: - Unified augmentation system to BrainyAugmentation interface - Changed methods to specific noun/verb naming (addNoun, getNoun, etc) - Made old methods private - Combined getNouns into single unified method - Neural API exists and is complete - Triple Intelligence uses correct Brainy operators (not MongoDB) Issues identified: - Documentation incorrectly shows MongoDB operators (code is correct) - Need to ensure all features are properly exposed - Need to verify nothing was lost in simplification This commit serves as a rollback point before applying fixes.
411 lines
No EOL
12 KiB
TypeScript
411 lines
No EOL
12 KiB
TypeScript
/**
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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, AugmentationContext } from './brainyAugmentation.js'
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interface ConnectionPoolConfig {
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enabled?: boolean
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maxConnections?: number // Maximum concurrent connections
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minConnections?: number // Minimum idle connections
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acquireTimeout?: number // Timeout for getting connection (ms)
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idleTimeout?: number // Connection idle timeout (ms)
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maxQueueSize?: number // Maximum queued requests
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retryAttempts?: number // Retry failed requests
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healthCheckInterval?: number // Connection health check (ms)
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}
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interface PooledConnection {
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id: string
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connection: any
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isIdle: boolean
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lastUsed: number
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healthScore: number
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activeRequests: number
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}
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interface QueuedRequest {
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id: string
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operation: string
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params: any
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resolver: (value: any) => void
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rejector: (error: Error) => void
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timestamp: number
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priority: number
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}
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export class ConnectionPoolAugmentation extends BaseAugmentation {
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name = 'ConnectionPool'
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timing = 'around' as const
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operations = ['storage'] as ('storage')[]
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priority = 95 // Very high priority for storage operations
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private config: Required<ConnectionPoolConfig>
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private connections: Map<string, PooledConnection> = new Map()
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private requestQueue: QueuedRequest[] = []
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private healthCheckInterval?: NodeJS.Timeout
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private storageType: string = 'unknown'
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private 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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constructor(config: ConnectionPoolConfig = {}) {
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super()
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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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protected async onInitialize(): Promise<void> {
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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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} 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: string, params: any): boolean {
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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<T = any>(
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operation: string,
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params: any,
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next: () => Promise<T>
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): Promise<T> {
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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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} 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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private detectStorageType(): string {
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const storage = this.context?.storage
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if (!storage) return 'unknown'
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const className = storage.constructor.name.toLowerCase()
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if (className.includes('s3')) return 's3'
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if (className.includes('r2')) return 'r2'
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if (className.includes('gcs') || className.includes('google')) return 'gcs'
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if (className.includes('azure')) return 'azure'
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if (className.includes('filesystem')) return 'filesystem'
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if (className.includes('memory')) return 'memory'
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return 'unknown'
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}
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private isCloudStorage(): boolean {
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return ['s3', 'r2', 'gcs', 'azure'].includes(this.storageType)
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}
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private isStorageOperation(operation: string): boolean {
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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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private getOperationPriority(operation: string): number {
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// Critical operations get highest priority
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if (operation.includes('save') || operation.includes('update')) return 10
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if (operation.includes('delete')) return 9
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if (operation.includes('get')) return 7
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if (operation.includes('list')) return 5
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if (operation.includes('backup')) return 3
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return 1
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}
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private async executeWithPool<T>(
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operation: string,
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params: any,
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executor: () => Promise<T>,
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priority: number
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): Promise<T> {
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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 = this.getAvailableConnection()
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if (connection) {
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return this.executeWithConnection(connection, operation, executor)
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}
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// Queue the request
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return this.queueRequest(operation, params, executor, priority)
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}
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private getAvailableConnection(): PooledConnection | null {
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// Find idle connection with best health score
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let bestConnection: PooledConnection | null = 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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private async executeWithConnection<T>(
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connection: PooledConnection,
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operation: string,
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executor: () => Promise<T>
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): Promise<T> {
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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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} 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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} 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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private async queueRequest<T>(
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operation: string,
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params: any,
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executor: () => Promise<T>,
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priority: number
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): Promise<T> {
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return new Promise((resolve, reject) => {
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const request: QueuedRequest = {
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id: `req_${Date.now()}_${Math.random()}`,
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operation,
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params,
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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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} 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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private processQueue(): void {
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if (this.requestQueue.length === 0) return
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const connection = this.getAvailableConnection()
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if (!connection) return
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const request = this.requestQueue.shift()!
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this.stats.queuedRequests--
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// Execute queued request
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this.executeWithConnection(connection, request.operation, async () => {
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// This is a bit tricky - we need to reconstruct the executor
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// In practice, we'd need to store the actual executor function
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// For now, we'll resolve with a placeholder
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return {} as any
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}).then(request.resolver).catch(request.rejector)
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}
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private async initializeConnectionPool(): Promise<void> {
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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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private async createConnection(): Promise<PooledConnection> {
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const connectionId = `conn_${Date.now()}_${Math.random()}`
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const connection: PooledConnection = {
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id: connectionId,
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connection: null, // In real implementation, create actual connection
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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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}
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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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private startHealthChecks(): void {
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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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private performHealthChecks(): void {
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const now = Date.now()
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const toRemove: string[] = []
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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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private startMetricsCollection(): void {
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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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private updateLatencyMetrics(latency: number): void {
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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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private updateThroughputMetrics(): void {
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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(): typeof this.stats & {
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queueSize: number
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activeConnections: number
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totalConnections: number
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poolUtilization: string
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storageType: string
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} {
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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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protected async onShutdown(): Promise<void> {
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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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} |