Alex Newman
2bb07dd41a
Addresses review feedback to register signal handlers earlier in the lifecycle. Previously handlers were registered in start() after HTTP server initialization, leaving a vulnerability window. Benefits: - Signal handlers now active immediately after WorkerService construction - Protects against signals received during initialization (DB setup, HTTP server binding, background initialization) - Prevents orphaned chroma-mcp processes even if killed during startup - shutdown() method is defensive and safe to call at any stage This closes the gap where a SIGTERM/SIGINT during initializeBackground() could leave chroma-mcp subprocess running without cleanup. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>
1208 lines
42 KiB
TypeScript
1208 lines
42 KiB
TypeScript
/**
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* Worker Service - Slim Orchestrator
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*
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* Refactored from 2000-line monolith to ~150-line orchestrator.
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* Routes organized by feature area in http/routes/*.ts
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* See src/services/worker/README.md for architecture details.
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*/
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import express from 'express';
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import http from 'http';
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import path from 'path';
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import * as fs from 'fs';
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import { Client } from '@modelcontextprotocol/sdk/client/index.js';
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import { StdioClientTransport } from '@modelcontextprotocol/sdk/client/stdio.js';
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import { getWorkerPort, getWorkerHost } from '../shared/worker-utils.js';
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import { logger } from '../utils/logger.js';
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import { exec, execSync, spawn } from 'child_process';
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import { homedir } from 'os';
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import { existsSync, writeFileSync, readFileSync, unlinkSync, mkdirSync } from 'fs';
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import { promisify } from 'util';
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const execAsync = promisify(exec);
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// PID file management for self-spawn pattern
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const DATA_DIR = path.join(homedir(), '.claude-mem');
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const PID_FILE = path.join(DATA_DIR, 'worker.pid');
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const HOOK_RESPONSE = '{"continue": true, "suppressOutput": true}';
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interface PidInfo {
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pid: number;
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port: number;
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startedAt: string;
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}
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// PID file utility functions
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function writePidFile(info: PidInfo): void {
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mkdirSync(DATA_DIR, { recursive: true });
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writeFileSync(PID_FILE, JSON.stringify(info, null, 2));
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}
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function readPidFile(): PidInfo | null {
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try {
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if (!existsSync(PID_FILE)) return null;
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return JSON.parse(readFileSync(PID_FILE, 'utf-8'));
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} catch (error) {
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logger.warn('SYSTEM', 'Failed to read PID file', { path: PID_FILE, error: (error as Error).message });
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return null;
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}
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}
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function removePidFile(): void {
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try {
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if (existsSync(PID_FILE)) unlinkSync(PID_FILE);
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} catch (error) {
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logger.warn('SYSTEM', 'Failed to remove PID file', { path: PID_FILE, error: (error as Error).message });
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}
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}
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// Lockfile for CLI command mutual exclusion (prevents race conditions on Windows)
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const LOCK_FILE = path.join(DATA_DIR, 'worker.lock');
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const LOCK_STALE_MS = 120000; // Lock considered stale after 2 minutes
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interface LockInfo {
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pid: number;
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command: string;
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startedAt: string;
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}
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/**
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* Clean up stale lock from crashed processes
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*/
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function cleanupStaleLock(): void {
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try {
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if (!existsSync(LOCK_FILE)) return;
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const lockData = readFileSync(LOCK_FILE, 'utf-8');
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const lockInfo: LockInfo = JSON.parse(lockData);
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const lockAge = Date.now() - new Date(lockInfo.startedAt).getTime();
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if (lockAge > LOCK_STALE_MS) {
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logger.warn('SYSTEM', 'Removing stale lock', {
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lockAge: Math.round(lockAge / 1000) + 's',
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originalPid: lockInfo.pid,
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originalCommand: lockInfo.command
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});
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unlinkSync(LOCK_FILE);
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}
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} catch {
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// If we can't read the lock, it's likely corrupted - remove it
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try { unlinkSync(LOCK_FILE); } catch {}
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}
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}
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/**
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* Acquire exclusive lock for worker operations
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* Uses atomic file creation (O_EXCL) for cross-process safety
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*/
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function acquireLock(command: string): boolean {
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mkdirSync(DATA_DIR, { recursive: true });
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cleanupStaleLock();
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const lockInfo: LockInfo = {
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pid: process.pid,
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command,
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startedAt: new Date().toISOString()
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};
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let retries = 3;
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while (retries > 0) {
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try {
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// O_EXCL ensures atomic creation - fails if file exists
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const fd = fs.openSync(LOCK_FILE, fs.constants.O_CREAT | fs.constants.O_EXCL | fs.constants.O_WRONLY);
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fs.writeSync(fd, JSON.stringify(lockInfo, null, 2));
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fs.closeSync(fd);
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return true;
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} catch (error: unknown) {
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if ((error as NodeJS.ErrnoException).code === 'EEXIST') {
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return false;
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}
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// Retry on ENOENT (can happen on Windows if file/dir state is in flux)
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if ((error as NodeJS.ErrnoException).code === 'ENOENT') {
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retries--;
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if (retries === 0) {
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logger.warn('SYSTEM', 'Lock acquisition error (ENOENT)', { error: (error as Error).message });
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return false;
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}
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// Ensure directory exists and try again
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try { mkdirSync(DATA_DIR, { recursive: true }); } catch {}
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continue;
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}
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logger.warn('SYSTEM', 'Lock acquisition error', { error: (error as Error).message });
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return false;
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}
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}
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return false;
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}
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/**
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* Release lock file
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*/
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function releaseLock(): void {
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try {
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if (existsSync(LOCK_FILE)) unlinkSync(LOCK_FILE);
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} catch (error) {
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logger.warn('SYSTEM', 'Lock release error', { error: (error as Error).message });
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}
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}
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/**
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* Wait for lock with timeout
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*/
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async function waitForLock(command: string, timeoutMs: number): Promise<boolean> {
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const start = Date.now();
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while (Date.now() - start < timeoutMs) {
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if (acquireLock(command)) return true;
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await new Promise(r => setTimeout(r, 200));
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}
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return false;
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}
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/**
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* Get platform-adjusted timeout (Windows socket cleanup is slower)
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*/
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function getPlatformTimeout(baseMs: number): number {
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const WINDOWS_MULTIPLIER = 2.0;
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return process.platform === 'win32' ? Math.round(baseMs * WINDOWS_MULTIPLIER) : baseMs;
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}
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async function isPortInUse(port: number): Promise<boolean> {
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try {
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const response = await fetch(`http://127.0.0.1:${port}/api/health`, {
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signal: AbortSignal.timeout(2000)
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});
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return response.ok;
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} catch { return false; }
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}
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async function waitForHealth(port: number, timeoutMs: number = 30000): Promise<boolean> {
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const start = Date.now();
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while (Date.now() - start < timeoutMs) {
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try {
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const response = await fetch(`http://127.0.0.1:${port}/api/readiness`, {
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signal: AbortSignal.timeout(2000)
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});
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if (response.ok) return true;
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} catch {
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// Not ready yet
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}
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await new Promise(r => setTimeout(r, 500));
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}
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return false;
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}
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async function httpShutdown(port: number): Promise<boolean> {
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try {
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const response = await fetch(`http://127.0.0.1:${port}/api/admin/shutdown`, {
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method: 'POST',
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signal: AbortSignal.timeout(5000)
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});
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if (!response.ok) {
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logger.warn('SYSTEM', 'Shutdown request returned error', { port, status: response.status });
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return false;
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}
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return true;
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} catch (error) {
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// Connection refused is expected if worker already stopped
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const isConnectionRefused = (error as Error).message?.includes('ECONNREFUSED');
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if (!isConnectionRefused) {
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logger.warn('SYSTEM', 'Shutdown request failed', { port, error: (error as Error).message });
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}
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return false;
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}
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}
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async function waitForPortFree(port: number, timeoutMs: number = 10000): Promise<boolean> {
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const start = Date.now();
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while (Date.now() - start < timeoutMs) {
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if (!(await isPortInUse(port))) return true;
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await new Promise(r => setTimeout(r, 500));
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}
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return false;
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}
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// Import composed service layer
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import { DatabaseManager } from './worker/DatabaseManager.js';
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import { SessionManager } from './worker/SessionManager.js';
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import { SSEBroadcaster } from './worker/SSEBroadcaster.js';
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import { SDKAgent } from './worker/SDKAgent.js';
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import { GeminiAgent } from './worker/GeminiAgent.js';
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import { OpenRouterAgent } from './worker/OpenRouterAgent.js';
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import { PaginationHelper } from './worker/PaginationHelper.js';
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import { SettingsManager } from './worker/SettingsManager.js';
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import { SearchManager } from './worker/SearchManager.js';
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import { FormattingService } from './worker/FormattingService.js';
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import { TimelineService } from './worker/TimelineService.js';
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import { SessionEventBroadcaster } from './worker/events/SessionEventBroadcaster.js';
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// Import HTTP layer
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import { createMiddleware, summarizeRequestBody as summarizeBody, requireLocalhost } from './worker/http/middleware.js';
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import { ViewerRoutes } from './worker/http/routes/ViewerRoutes.js';
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import { SessionRoutes } from './worker/http/routes/SessionRoutes.js';
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import { DataRoutes } from './worker/http/routes/DataRoutes.js';
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import { SearchRoutes } from './worker/http/routes/SearchRoutes.js';
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import { SettingsRoutes } from './worker/http/routes/SettingsRoutes.js';
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export class WorkerService {
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private app: express.Application;
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private server: http.Server | null = null;
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private startTime: number = Date.now();
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private mcpClient: Client;
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// Initialization flags for MCP/SDK readiness tracking
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private mcpReady: boolean = false;
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private initializationCompleteFlag: boolean = false;
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private isShuttingDown: boolean = false;
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// Service layer
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private dbManager: DatabaseManager;
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private sessionManager: SessionManager;
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private sseBroadcaster: SSEBroadcaster;
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private sdkAgent: SDKAgent;
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private geminiAgent: GeminiAgent;
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private openRouterAgent: OpenRouterAgent;
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private paginationHelper: PaginationHelper;
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private settingsManager: SettingsManager;
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private sessionEventBroadcaster: SessionEventBroadcaster;
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// Route handlers
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private viewerRoutes: ViewerRoutes;
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private sessionRoutes: SessionRoutes;
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private dataRoutes: DataRoutes;
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private searchRoutes: SearchRoutes | null;
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private settingsRoutes: SettingsRoutes;
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// Initialization tracking
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private initializationComplete: Promise<void>;
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private resolveInitialization!: () => void;
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constructor() {
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this.app = express();
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// Initialize the promise that will resolve when background initialization completes
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this.initializationComplete = new Promise((resolve) => {
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this.resolveInitialization = resolve;
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});
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// Initialize service layer
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this.dbManager = new DatabaseManager();
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this.sessionManager = new SessionManager(this.dbManager);
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this.sseBroadcaster = new SSEBroadcaster();
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this.sdkAgent = new SDKAgent(this.dbManager, this.sessionManager);
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this.geminiAgent = new GeminiAgent(this.dbManager, this.sessionManager);
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this.geminiAgent.setFallbackAgent(this.sdkAgent); // Enable fallback to Claude on Gemini API failure
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this.openRouterAgent = new OpenRouterAgent(this.dbManager, this.sessionManager);
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this.openRouterAgent.setFallbackAgent(this.sdkAgent); // Enable fallback to Claude on OpenRouter API failure
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this.paginationHelper = new PaginationHelper(this.dbManager);
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this.settingsManager = new SettingsManager(this.dbManager);
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this.sessionEventBroadcaster = new SessionEventBroadcaster(this.sseBroadcaster, this);
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// Set callback for when sessions are deleted (to update activity indicator)
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this.sessionManager.setOnSessionDeleted(() => {
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this.broadcastProcessingStatus();
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});
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// Initialize MCP client
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this.mcpClient = new Client({
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name: 'worker-search-proxy',
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version: '1.0.0'
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}, { capabilities: {} });
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// Initialize route handlers (SearchRoutes will use MCP client initially, then switch to SearchManager after DB init)
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this.viewerRoutes = new ViewerRoutes(this.sseBroadcaster, this.dbManager, this.sessionManager);
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this.sessionRoutes = new SessionRoutes(this.sessionManager, this.dbManager, this.sdkAgent, this.geminiAgent, this.openRouterAgent, this.sessionEventBroadcaster, this);
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this.dataRoutes = new DataRoutes(this.paginationHelper, this.dbManager, this.sessionManager, this.sseBroadcaster, this, this.startTime);
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// SearchRoutes needs SearchManager which requires initialized DB - will be created in initializeBackground()
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this.searchRoutes = null;
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this.settingsRoutes = new SettingsRoutes(this.settingsManager);
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this.setupMiddleware();
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this.setupRoutes();
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// Register signal handlers early to ensure cleanup even if start() hasn't completed
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// The shutdown() method is defensive and safe to call at any initialization stage
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this.registerSignalHandlers();
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}
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/**
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* Register signal handlers for graceful shutdown
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* Called in constructor to ensure cleanup even if start() hasn't completed
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*/
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private registerSignalHandlers(): void {
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const handleShutdown = async (signal: string) => {
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if (this.isShuttingDown) {
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logger.warn('SYSTEM', `Received ${signal} but shutdown already in progress`);
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return;
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}
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this.isShuttingDown = true;
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logger.info('SYSTEM', `Received ${signal}, shutting down...`);
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try {
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await this.shutdown();
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process.exit(0);
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} catch (error) {
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logger.error('SYSTEM', 'Error during shutdown', {}, error as Error);
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process.exit(1);
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}
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};
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process.on('SIGTERM', () => handleShutdown('SIGTERM'));
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process.on('SIGINT', () => handleShutdown('SIGINT'));
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}
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/**
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* Setup Express middleware
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*/
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private setupMiddleware(): void {
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const middlewares = createMiddleware(this.summarizeRequestBody.bind(this));
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middlewares.forEach(mw => this.app.use(mw));
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}
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/**
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* Setup HTTP routes (delegate to route classes)
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*/
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private setupRoutes(): void {
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// Health check endpoint
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// TEST_BUILD_ID helps verify which build is running during debugging
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const TEST_BUILD_ID = 'TEST-008-wrapper-ipc';
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this.app.get('/api/health', (_req, res) => {
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res.status(200).json({
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status: 'ok',
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build: TEST_BUILD_ID,
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managed: process.env.CLAUDE_MEM_MANAGED === 'true',
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hasIpc: typeof process.send === 'function',
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platform: process.platform,
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pid: process.pid,
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initialized: this.initializationCompleteFlag,
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mcpReady: this.mcpReady,
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});
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});
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// Readiness check endpoint - returns 503 until full initialization completes
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// Used by ProcessManager and worker-utils to ensure worker is fully ready before routing requests
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this.app.get('/api/readiness', (_req, res) => {
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if (this.initializationCompleteFlag) {
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res.status(200).json({
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status: 'ready',
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mcpReady: this.mcpReady,
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});
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} else {
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res.status(503).json({
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status: 'initializing',
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message: 'Worker is still initializing, please retry',
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});
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}
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});
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// Version endpoint - returns the worker's current version
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this.app.get('/api/version', (_req, res) => {
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const { homedir } = require('os');
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const { readFileSync } = require('fs');
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const marketplaceRoot = path.join(homedir(), '.claude', 'plugins', 'marketplaces', 'thedotmack');
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const packageJsonPath = path.join(marketplaceRoot, 'package.json');
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// Read version from marketplace package.json
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const packageJson = JSON.parse(readFileSync(packageJsonPath, 'utf-8'));
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res.status(200).json({ version: packageJson.version });
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});
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// Instructions endpoint - loads SKILL.md sections on-demand for progressive instruction loading
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this.app.get('/api/instructions', async (req, res) => {
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const topic = (req.query.topic as string) || 'all';
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const operation = req.query.operation as string | undefined;
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// Path resolution: __dirname is build output directory (plugin/scripts/)
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// SKILL.md is at plugin/skills/mem-search/SKILL.md
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// Operations are at plugin/skills/mem-search/operations/*.md
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try {
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let content: string;
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|
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if (operation) {
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// Load specific operation file
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const operationPath = path.join(__dirname, '../skills/mem-search/operations', `${operation}.md`);
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content = await fs.promises.readFile(operationPath, 'utf-8');
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} else {
|
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// Load SKILL.md and extract section based on topic (backward compatibility)
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const skillPath = path.join(__dirname, '../skills/mem-search/SKILL.md');
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const fullContent = await fs.promises.readFile(skillPath, 'utf-8');
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content = this.extractInstructionSection(fullContent, topic);
|
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}
|
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|
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// Return in MCP format
|
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res.json({
|
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content: [{
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type: 'text',
|
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text: content
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}]
|
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});
|
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} catch (error) {
|
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logger.error('WORKER', 'Failed to load instructions', { topic, operation }, error as Error);
|
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res.status(500).json({
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content: [{
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type: 'text',
|
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text: `Error loading instructions: ${error instanceof Error ? error.message : 'Unknown error'}`
|
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}],
|
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isError: true
|
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});
|
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}
|
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});
|
|
|
|
// Admin endpoints for process management (localhost-only)
|
|
this.app.post('/api/admin/restart', requireLocalhost, async (_req, res) => {
|
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res.json({ status: 'restarting' });
|
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|
|
// On Windows, if managed by wrapper, send message to parent to handle restart
|
|
// This solves the Windows zombie port problem where sockets aren't properly released
|
|
const isWindowsManaged = process.platform === 'win32' &&
|
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process.env.CLAUDE_MEM_MANAGED === 'true' &&
|
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process.send;
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|
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if (isWindowsManaged) {
|
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logger.info('SYSTEM', 'Sending restart request to wrapper');
|
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process.send!({ type: 'restart' });
|
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} else {
|
|
// Unix or standalone Windows - handle restart ourselves
|
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setTimeout(async () => {
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await this.shutdown();
|
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process.exit(0);
|
|
}, 100);
|
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}
|
|
});
|
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|
|
this.app.post('/api/admin/shutdown', requireLocalhost, async (_req, res) => {
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res.json({ status: 'shutting_down' });
|
|
|
|
// On Windows, if managed by wrapper, send message to parent to handle shutdown
|
|
const isWindowsManaged = process.platform === 'win32' &&
|
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process.env.CLAUDE_MEM_MANAGED === 'true' &&
|
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process.send;
|
|
|
|
if (isWindowsManaged) {
|
|
logger.info('SYSTEM', 'Sending shutdown request to wrapper');
|
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process.send!({ type: 'shutdown' });
|
|
} else {
|
|
// Unix or standalone Windows - handle shutdown ourselves
|
|
setTimeout(async () => {
|
|
await this.shutdown();
|
|
process.exit(0);
|
|
}, 100);
|
|
}
|
|
});
|
|
|
|
this.viewerRoutes.setupRoutes(this.app);
|
|
this.sessionRoutes.setupRoutes(this.app);
|
|
this.dataRoutes.setupRoutes(this.app);
|
|
// searchRoutes is set up after database initialization in initializeBackground()
|
|
this.settingsRoutes.setupRoutes(this.app);
|
|
|
|
// Register early handler for /api/context/inject to avoid 404 during startup
|
|
// This handler waits for initialization to complete before delegating to SearchRoutes
|
|
// NOTE: This duplicates logic from SearchRoutes.handleContextInject by design,
|
|
// as we need the route available immediately before SearchRoutes is initialized
|
|
this.app.get('/api/context/inject', async (req, res, next) => {
|
|
try {
|
|
// Wait for initialization to complete (with timeout)
|
|
const timeoutMs = 300000; // 5 minute timeout for slow systems
|
|
const timeoutPromise = new Promise((_, reject) =>
|
|
setTimeout(() => reject(new Error('Initialization timeout')), timeoutMs)
|
|
);
|
|
|
|
await Promise.race([this.initializationComplete, timeoutPromise]);
|
|
|
|
// If searchRoutes is still null after initialization, something went wrong
|
|
if (!this.searchRoutes) {
|
|
res.status(503).json({ error: 'Search routes not initialized' });
|
|
return;
|
|
}
|
|
|
|
// Delegate to the SearchRoutes handler which is registered after this one
|
|
// This avoids code duplication and "headers already sent" errors
|
|
next();
|
|
} catch (error) {
|
|
logger.error('WORKER', 'Context inject handler failed', {}, error as Error);
|
|
if (!res.headersSent) {
|
|
res.status(500).json({ error: error instanceof Error ? error.message : 'Internal server error' });
|
|
}
|
|
}
|
|
});
|
|
}
|
|
|
|
|
|
/**
|
|
* Clean up orphaned chroma-mcp processes from previous worker sessions
|
|
* Prevents process accumulation and memory leaks
|
|
*/
|
|
private async cleanupOrphanedProcesses(): Promise<void> {
|
|
const isWindows = process.platform === 'win32';
|
|
const pids: number[] = [];
|
|
|
|
if (isWindows) {
|
|
// Windows: Use PowerShell Get-CimInstance to find chroma-mcp processes
|
|
const cmd = `powershell -Command "Get-CimInstance Win32_Process | Where-Object { $_.Name -like '*python*' -and $_.CommandLine -like '*chroma-mcp*' } | Select-Object -ExpandProperty ProcessId"`;
|
|
const { stdout } = await execAsync(cmd, { timeout: 60000 });
|
|
|
|
if (!stdout.trim()) {
|
|
logger.debug('SYSTEM', 'No orphaned chroma-mcp processes found (Windows)');
|
|
return;
|
|
}
|
|
|
|
const pidStrings = stdout.trim().split('\n');
|
|
for (const pidStr of pidStrings) {
|
|
const pid = parseInt(pidStr.trim(), 10);
|
|
// SECURITY: Validate PID is positive integer before adding to list
|
|
if (!isNaN(pid) && Number.isInteger(pid) && pid > 0) {
|
|
pids.push(pid);
|
|
}
|
|
}
|
|
} else {
|
|
// Unix: Use ps aux | grep
|
|
const { stdout } = await execAsync('ps aux | grep "chroma-mcp" | grep -v grep || true');
|
|
|
|
if (!stdout.trim()) {
|
|
logger.debug('SYSTEM', 'No orphaned chroma-mcp processes found (Unix)');
|
|
return;
|
|
}
|
|
|
|
const lines = stdout.trim().split('\n');
|
|
for (const line of lines) {
|
|
const parts = line.trim().split(/\s+/);
|
|
if (parts.length > 1) {
|
|
const pid = parseInt(parts[1], 10);
|
|
// SECURITY: Validate PID is positive integer before adding to list
|
|
if (!isNaN(pid) && Number.isInteger(pid) && pid > 0) {
|
|
pids.push(pid);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (pids.length === 0) {
|
|
return;
|
|
}
|
|
|
|
logger.info('SYSTEM', 'Cleaning up orphaned chroma-mcp processes', {
|
|
platform: isWindows ? 'Windows' : 'Unix',
|
|
count: pids.length,
|
|
pids
|
|
});
|
|
|
|
// Kill all found processes
|
|
if (isWindows) {
|
|
for (const pid of pids) {
|
|
// SECURITY: Double-check PID validation before using in taskkill command
|
|
if (!Number.isInteger(pid) || pid <= 0) {
|
|
logger.warn('SYSTEM', 'Skipping invalid PID', { pid });
|
|
continue;
|
|
}
|
|
try {
|
|
execSync(`taskkill /PID ${pid} /T /F`, { timeout: 60000, stdio: 'ignore' });
|
|
} catch {
|
|
// Process may have already exited - continue cleanup
|
|
}
|
|
}
|
|
} else {
|
|
for (const pid of pids) {
|
|
try {
|
|
process.kill(pid, 'SIGKILL');
|
|
} catch {
|
|
// Process already exited - that's fine
|
|
}
|
|
}
|
|
}
|
|
|
|
logger.info('SYSTEM', 'Orphaned processes cleaned up', { count: pids.length });
|
|
}
|
|
|
|
/**
|
|
* Start the worker service
|
|
*/
|
|
async start(): Promise<void> {
|
|
// Start HTTP server FIRST - make port available immediately
|
|
const port = getWorkerPort();
|
|
const host = getWorkerHost();
|
|
this.server = await new Promise<http.Server>((resolve, reject) => {
|
|
const srv = this.app.listen(port, host, () => resolve(srv));
|
|
srv.on('error', reject);
|
|
});
|
|
|
|
logger.info('SYSTEM', 'Worker started', { host, port, pid: process.pid });
|
|
|
|
// Do slow initialization in background (non-blocking)
|
|
this.initializeBackground().catch((error) => {
|
|
logger.error('SYSTEM', 'Background initialization failed', {}, error as Error);
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Background initialization - runs after HTTP server is listening
|
|
*/
|
|
private async initializeBackground(): Promise<void> {
|
|
try {
|
|
// Clean up any orphaned chroma-mcp processes BEFORE starting our own
|
|
await this.cleanupOrphanedProcesses();
|
|
|
|
// Load mode configuration (must happen before database to set observation types)
|
|
const { ModeManager } = await import('./domain/ModeManager.js');
|
|
const { SettingsDefaultsManager } = await import('../shared/SettingsDefaultsManager.js');
|
|
const { USER_SETTINGS_PATH } = await import('../shared/paths.js');
|
|
|
|
const settings = SettingsDefaultsManager.loadFromFile(USER_SETTINGS_PATH);
|
|
const modeId = settings.CLAUDE_MEM_MODE;
|
|
ModeManager.getInstance().loadMode(modeId);
|
|
logger.info('SYSTEM', `Mode loaded: ${modeId}`);
|
|
|
|
// Initialize database (once, stays open)
|
|
await this.dbManager.initialize();
|
|
|
|
// Recover stuck messages from previous crashes
|
|
// Messages stuck in 'processing' state are reset to 'pending' for reprocessing
|
|
const { PendingMessageStore } = await import('./sqlite/PendingMessageStore.js');
|
|
const pendingStore = new PendingMessageStore(this.dbManager.getSessionStore().db, 3);
|
|
const STUCK_THRESHOLD_MS = 5 * 60 * 1000; // 5 minutes
|
|
const resetCount = pendingStore.resetStuckMessages(STUCK_THRESHOLD_MS);
|
|
if (resetCount > 0) {
|
|
logger.info('SYSTEM', `Recovered ${resetCount} stuck messages from previous session`, { thresholdMinutes: 5 });
|
|
}
|
|
|
|
// Initialize search services (requires initialized database)
|
|
const formattingService = new FormattingService();
|
|
const timelineService = new TimelineService();
|
|
const searchManager = new SearchManager(
|
|
this.dbManager.getSessionSearch(),
|
|
this.dbManager.getSessionStore(),
|
|
this.dbManager.getChromaSync(),
|
|
formattingService,
|
|
timelineService
|
|
);
|
|
this.searchRoutes = new SearchRoutes(searchManager);
|
|
this.searchRoutes.setupRoutes(this.app); // Setup search routes now that SearchManager is ready
|
|
logger.info('WORKER', 'SearchManager initialized and search routes registered');
|
|
|
|
// Connect to MCP server with timeout guard
|
|
const mcpServerPath = path.join(__dirname, 'mcp-server.cjs');
|
|
const transport = new StdioClientTransport({
|
|
command: 'node',
|
|
args: [mcpServerPath],
|
|
env: process.env
|
|
});
|
|
|
|
// Add timeout guard to prevent hanging on MCP connection (5 minutes for slow systems)
|
|
const MCP_INIT_TIMEOUT_MS = 300000;
|
|
const mcpConnectionPromise = this.mcpClient.connect(transport);
|
|
const timeoutPromise = new Promise<never>((_, reject) =>
|
|
setTimeout(() => reject(new Error('MCP connection timeout after 5 minutes')), MCP_INIT_TIMEOUT_MS)
|
|
);
|
|
|
|
await Promise.race([mcpConnectionPromise, timeoutPromise]);
|
|
this.mcpReady = true;
|
|
logger.success('WORKER', 'Connected to MCP server');
|
|
|
|
// Signal that initialization is complete
|
|
this.initializationCompleteFlag = true;
|
|
this.resolveInitialization();
|
|
logger.info('SYSTEM', 'Background initialization complete');
|
|
|
|
// Auto-recover orphaned queues on startup (process pending work from previous sessions)
|
|
this.processPendingQueues(50).then(result => {
|
|
if (result.sessionsStarted > 0) {
|
|
logger.info('SYSTEM', `Auto-recovered ${result.sessionsStarted} sessions with pending work`, {
|
|
totalPending: result.totalPendingSessions,
|
|
started: result.sessionsStarted,
|
|
sessionIds: result.startedSessionIds
|
|
});
|
|
}
|
|
}).catch(error => {
|
|
logger.warn('SYSTEM', 'Auto-recovery of pending queues failed', {}, error as Error);
|
|
});
|
|
} catch (error) {
|
|
logger.error('SYSTEM', 'Background initialization failed', {}, error as Error);
|
|
// Don't resolve - let the promise remain pending so readiness check continues to fail
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Start a session processor
|
|
* It will run continuously until the session is deleted/aborted
|
|
*/
|
|
private startSessionProcessor(
|
|
session: ReturnType<typeof this.sessionManager.getSession>,
|
|
source: string
|
|
): void {
|
|
if (!session) return;
|
|
|
|
const sid = session.sessionDbId;
|
|
logger.info('SYSTEM', `Starting generator (${source})`, {
|
|
sessionId: sid
|
|
});
|
|
|
|
session.generatorPromise = this.sdkAgent.startSession(session, this)
|
|
.catch(error => {
|
|
// Only log if not aborted
|
|
if (session.abortController.signal.aborted) return;
|
|
|
|
logger.error('SYSTEM', `Generator failed (${source})`, {
|
|
sessionId: sid,
|
|
error: error.message
|
|
}, error);
|
|
})
|
|
.finally(() => {
|
|
session.generatorPromise = null;
|
|
this.broadcastProcessingStatus();
|
|
|
|
// Crash recovery: if not aborted, check if we should restart
|
|
if (!session.abortController.signal.aborted) {
|
|
// We can check if there are pending messages to decide if restart is urgent
|
|
// But generally, if it crashed, we might want to restart?
|
|
// For now, let's just log. The user/system can trigger restart if needed.
|
|
logger.warn('SYSTEM', `Session processor exited unexpectedly`, { sessionId: sid });
|
|
}
|
|
});
|
|
}
|
|
|
|
/**
|
|
* Process pending session queues
|
|
* Starts SDK agents for sessions that have pending messages but no active processor
|
|
* @param sessionLimit Maximum number of sessions to start processing (default: 10)
|
|
* @returns Info about what was started
|
|
*/
|
|
async processPendingQueues(sessionLimit: number = 10): Promise<{
|
|
totalPendingSessions: number;
|
|
sessionsStarted: number;
|
|
sessionsSkipped: number;
|
|
startedSessionIds: number[];
|
|
}> {
|
|
const { PendingMessageStore } = await import('./sqlite/PendingMessageStore.js');
|
|
const pendingStore = new PendingMessageStore(this.dbManager.getSessionStore().db, 3);
|
|
const orphanedSessionIds = pendingStore.getSessionsWithPendingMessages();
|
|
|
|
const result = {
|
|
totalPendingSessions: orphanedSessionIds.length,
|
|
sessionsStarted: 0,
|
|
sessionsSkipped: 0,
|
|
startedSessionIds: [] as number[]
|
|
};
|
|
|
|
if (orphanedSessionIds.length === 0) {
|
|
return result;
|
|
}
|
|
|
|
logger.info('SYSTEM', `Processing up to ${sessionLimit} of ${orphanedSessionIds.length} pending session queues`);
|
|
|
|
// Process each session sequentially up to the limit
|
|
for (const sessionDbId of orphanedSessionIds) {
|
|
if (result.sessionsStarted >= sessionLimit) {
|
|
break;
|
|
}
|
|
|
|
try {
|
|
// Skip if session already has an active generator
|
|
const existingSession = this.sessionManager.getSession(sessionDbId);
|
|
if (existingSession?.generatorPromise) {
|
|
result.sessionsSkipped++;
|
|
continue;
|
|
}
|
|
|
|
// Initialize session and start SDK agent
|
|
const session = this.sessionManager.initializeSession(sessionDbId);
|
|
|
|
logger.info('SYSTEM', `Starting processor for session ${sessionDbId}`, {
|
|
project: session.project,
|
|
pendingCount: pendingStore.getPendingCount(sessionDbId)
|
|
});
|
|
|
|
// Start SDK agent (non-blocking)
|
|
this.startSessionProcessor(session, 'startup-recovery');
|
|
|
|
result.sessionsStarted++;
|
|
result.startedSessionIds.push(sessionDbId);
|
|
|
|
// Small delay between sessions to avoid rate limiting
|
|
await new Promise(resolve => setTimeout(resolve, 100));
|
|
} catch (error) {
|
|
logger.warn('SYSTEM', `Failed to process session ${sessionDbId}`, {}, error as Error);
|
|
result.sessionsSkipped++;
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/**
|
|
* Extract a specific section from instruction content
|
|
* Used by /api/instructions endpoint for progressive instruction loading
|
|
*/
|
|
private extractInstructionSection(content: string, topic: string): string {
|
|
const sections: Record<string, string> = {
|
|
'workflow': this.extractBetween(content, '## The Workflow', '## Search Parameters'),
|
|
'search_params': this.extractBetween(content, '## Search Parameters', '## Examples'),
|
|
'examples': this.extractBetween(content, '## Examples', '## Why This Workflow'),
|
|
'all': content
|
|
};
|
|
|
|
return sections[topic] || sections['all'];
|
|
}
|
|
|
|
/**
|
|
* Extract text between two markers
|
|
* Helper for extractInstructionSection
|
|
*/
|
|
private extractBetween(content: string, startMarker: string, endMarker: string): string {
|
|
const startIdx = content.indexOf(startMarker);
|
|
const endIdx = content.indexOf(endMarker);
|
|
|
|
if (startIdx === -1) return content;
|
|
if (endIdx === -1) return content.substring(startIdx);
|
|
|
|
return content.substring(startIdx, endIdx).trim();
|
|
}
|
|
|
|
/**
|
|
* Shutdown the worker service
|
|
*
|
|
* IMPORTANT: On Windows, we must kill all child processes before exiting
|
|
* to prevent zombie ports. The socket handle can be inherited by children,
|
|
* and if not properly closed, the port stays bound after process death.
|
|
*/
|
|
async shutdown(): Promise<void> {
|
|
logger.info('SYSTEM', 'Shutdown initiated');
|
|
|
|
// Clean up PID file on shutdown
|
|
removePidFile();
|
|
|
|
// STEP 1: Enumerate all child processes BEFORE we start closing things
|
|
const childPids = await this.getChildProcesses(process.pid);
|
|
logger.info('SYSTEM', 'Found child processes', { count: childPids.length, pids: childPids });
|
|
|
|
// STEP 2: Close HTTP server first
|
|
if (this.server) {
|
|
this.server.closeAllConnections();
|
|
await new Promise<void>((resolve, reject) => {
|
|
this.server!.close(err => err ? reject(err) : resolve());
|
|
});
|
|
this.server = null;
|
|
logger.info('SYSTEM', 'HTTP server closed');
|
|
}
|
|
|
|
// STEP 3: Shutdown active sessions
|
|
await this.sessionManager.shutdownAll();
|
|
|
|
// STEP 4: Close MCP client connection (signals child to exit gracefully)
|
|
if (this.mcpClient) {
|
|
await this.mcpClient.close();
|
|
logger.info('SYSTEM', 'MCP client closed');
|
|
}
|
|
|
|
// STEP 5: Close database connection (includes ChromaSync cleanup)
|
|
await this.dbManager.close();
|
|
|
|
// STEP 6: Force kill any remaining child processes (Windows zombie port fix)
|
|
if (childPids.length > 0) {
|
|
logger.info('SYSTEM', 'Force killing remaining children');
|
|
for (const pid of childPids) {
|
|
await this.forceKillProcess(pid);
|
|
}
|
|
// Wait for children to fully exit
|
|
await this.waitForProcessesExit(childPids, 5000);
|
|
}
|
|
|
|
logger.info('SYSTEM', 'Worker shutdown complete');
|
|
}
|
|
|
|
/**
|
|
* Get all child process PIDs (Windows-specific)
|
|
*/
|
|
private async getChildProcesses(parentPid: number): Promise<number[]> {
|
|
if (process.platform !== 'win32') {
|
|
return [];
|
|
}
|
|
|
|
// SECURITY: Validate PID is a positive integer to prevent command injection
|
|
if (!Number.isInteger(parentPid) || parentPid <= 0) {
|
|
logger.warn('SYSTEM', 'Invalid parent PID for child process enumeration', { parentPid });
|
|
return [];
|
|
}
|
|
|
|
try {
|
|
const cmd = `powershell -Command "Get-CimInstance Win32_Process | Where-Object { $_.ParentProcessId -eq ${parentPid} } | Select-Object -ExpandProperty ProcessId"`;
|
|
const { stdout } = await execAsync(cmd, { timeout: 60000 });
|
|
return stdout
|
|
.trim()
|
|
.split('\n')
|
|
.map(s => parseInt(s.trim(), 10))
|
|
.filter(n => !isNaN(n) && Number.isInteger(n) && n > 0); // SECURITY: Validate each PID
|
|
} catch (error) {
|
|
logger.warn('SYSTEM', 'Failed to enumerate child processes', { parentPid, error: (error as Error).message });
|
|
return []; // Fail safely - continue shutdown without child process cleanup
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Force kill a process by PID (Windows: uses taskkill /F /T)
|
|
*/
|
|
private async forceKillProcess(pid: number): Promise<void> {
|
|
// SECURITY: Validate PID is a positive integer to prevent command injection
|
|
if (!Number.isInteger(pid) || pid <= 0) {
|
|
logger.warn('SYSTEM', 'Invalid PID for force kill', { pid });
|
|
return;
|
|
}
|
|
|
|
try {
|
|
if (process.platform === 'win32') {
|
|
// /T kills entire process tree, /F forces termination
|
|
await execAsync(`taskkill /PID ${pid} /T /F`, { timeout: 60000 });
|
|
} else {
|
|
process.kill(pid, 'SIGKILL');
|
|
}
|
|
logger.info('SYSTEM', 'Killed process', { pid });
|
|
} catch {
|
|
// Process may have already exited - continue shutdown
|
|
logger.debug('SYSTEM', 'Process already exited during force kill', { pid });
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Wait for processes to fully exit
|
|
*/
|
|
private async waitForProcessesExit(pids: number[], timeoutMs: number): Promise<void> {
|
|
const start = Date.now();
|
|
|
|
while (Date.now() - start < timeoutMs) {
|
|
const stillAlive = pids.filter(pid => {
|
|
try {
|
|
process.kill(pid, 0);
|
|
return true;
|
|
} catch {
|
|
return false;
|
|
}
|
|
});
|
|
|
|
if (stillAlive.length === 0) {
|
|
logger.info('SYSTEM', 'All child processes exited');
|
|
return;
|
|
}
|
|
|
|
logger.debug('SYSTEM', 'Waiting for processes to exit', { stillAlive });
|
|
await new Promise(r => setTimeout(r, 100));
|
|
}
|
|
|
|
logger.warn('SYSTEM', 'Timeout waiting for child processes to exit');
|
|
}
|
|
|
|
/**
|
|
* Summarize request body for logging
|
|
* Used to avoid logging sensitive data or large payloads
|
|
*/
|
|
private summarizeRequestBody(method: string, path: string, body: any): string {
|
|
return summarizeBody(method, path, body);
|
|
}
|
|
|
|
/**
|
|
* Broadcast processing status change to SSE clients
|
|
* Checks both queue depth and active generators to prevent premature spinner stop
|
|
*
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|
* PUBLIC: Called by route handlers (SessionRoutes, DataRoutes)
|
|
*/
|
|
broadcastProcessingStatus(): void {
|
|
const isProcessing = this.sessionManager.isAnySessionProcessing();
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|
const queueDepth = this.sessionManager.getTotalActiveWork(); // Includes queued + actively processing
|
|
const activeSessions = this.sessionManager.getActiveSessionCount();
|
|
|
|
logger.info('WORKER', 'Broadcasting processing status', {
|
|
isProcessing,
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|
queueDepth,
|
|
activeSessions
|
|
});
|
|
|
|
this.sseBroadcaster.broadcast({
|
|
type: 'processing_status',
|
|
isProcessing,
|
|
queueDepth
|
|
});
|
|
}
|
|
}
|
|
|
|
// ============================================================================
|
|
// CLI Entry Point
|
|
// ============================================================================
|
|
|
|
async function main() {
|
|
const command = process.argv[2];
|
|
const port = getWorkerPort();
|
|
|
|
switch (command) {
|
|
case 'start': {
|
|
// Acquire lock BEFORE checking port to prevent race condition
|
|
// If we can't get lock, another session is spawning - wait for health instead
|
|
if (!acquireLock('start')) {
|
|
logger.info('SYSTEM', 'Another session is spawning worker, waiting for health');
|
|
const healthy = await waitForHealth(port, getPlatformTimeout(30000));
|
|
if (healthy) {
|
|
logger.info('SYSTEM', 'Worker healthy, returning success');
|
|
process.exit(0);
|
|
}
|
|
// Still not healthy after wait - try to acquire lock and spawn
|
|
const gotLock = await waitForLock('start', 5000);
|
|
if (!gotLock) {
|
|
logger.error('SYSTEM', 'Failed to acquire lock after timeout');
|
|
process.exit(1);
|
|
}
|
|
}
|
|
|
|
try {
|
|
// Re-check port AFTER acquiring lock
|
|
if (await isPortInUse(port)) {
|
|
releaseLock();
|
|
logger.info('SYSTEM', 'Port already in use, worker already running');
|
|
process.exit(0);
|
|
}
|
|
|
|
// Spawn self as daemon
|
|
const child = spawn(process.execPath, [__filename, '--daemon'], {
|
|
detached: true,
|
|
stdio: 'ignore',
|
|
windowsHide: true,
|
|
env: { ...process.env, CLAUDE_MEM_WORKER_PORT: String(port) }
|
|
});
|
|
|
|
if (child.pid === undefined) {
|
|
releaseLock();
|
|
logger.error('SYSTEM', 'Failed to spawn worker daemon');
|
|
process.exit(1);
|
|
}
|
|
|
|
child.unref();
|
|
|
|
// Write PID file
|
|
writePidFile({ pid: child.pid, port, startedAt: new Date().toISOString() });
|
|
|
|
// Wait for health with platform-adjusted timeout
|
|
const healthy = await waitForHealth(port, getPlatformTimeout(30000));
|
|
releaseLock();
|
|
|
|
if (!healthy) {
|
|
removePidFile();
|
|
logger.error('SYSTEM', 'Worker failed to start');
|
|
process.exit(1);
|
|
}
|
|
|
|
logger.info('SYSTEM', 'Worker started successfully');
|
|
process.exit(0);
|
|
} catch (error) {
|
|
releaseLock();
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
case 'stop': {
|
|
// Acquire lock for stop operation
|
|
if (!acquireLock('stop')) {
|
|
// Wait briefly for concurrent operation to complete
|
|
await new Promise(r => setTimeout(r, 2000));
|
|
}
|
|
|
|
try {
|
|
await httpShutdown(port);
|
|
const freed = await waitForPortFree(port, getPlatformTimeout(15000));
|
|
|
|
if (!freed) {
|
|
logger.warn('SYSTEM', 'Port did not free up after shutdown', { port });
|
|
// Could force kill here if we knew the PID, but for now just warn
|
|
}
|
|
|
|
removePidFile();
|
|
releaseLock();
|
|
logger.info('SYSTEM', 'Worker stopped successfully');
|
|
process.exit(0);
|
|
} catch (error) {
|
|
releaseLock();
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
case 'restart': {
|
|
// Acquire lock for restart operation
|
|
if (!acquireLock('restart')) {
|
|
// Another session is already restarting - wait for health
|
|
logger.info('SYSTEM', 'Another session is restarting worker, waiting');
|
|
const healthy = await waitForHealth(port, getPlatformTimeout(45000));
|
|
if (healthy) {
|
|
logger.info('SYSTEM', 'Worker healthy after restart');
|
|
process.exit(0);
|
|
}
|
|
logger.error('SYSTEM', 'Worker failed to restart (concurrent operation)');
|
|
process.exit(1);
|
|
}
|
|
|
|
try {
|
|
await httpShutdown(port);
|
|
const freed = await waitForPortFree(port, getPlatformTimeout(15000));
|
|
|
|
if (!freed) {
|
|
releaseLock();
|
|
logger.error('SYSTEM', 'Port did not free up after shutdown, aborting restart', { port });
|
|
process.exit(1);
|
|
}
|
|
|
|
removePidFile();
|
|
|
|
const child = spawn(process.execPath, [__filename, '--daemon'], {
|
|
detached: true,
|
|
stdio: 'ignore',
|
|
windowsHide: true,
|
|
env: { ...process.env, CLAUDE_MEM_WORKER_PORT: String(port) }
|
|
});
|
|
|
|
if (child.pid === undefined) {
|
|
releaseLock();
|
|
logger.error('SYSTEM', 'Failed to spawn worker daemon during restart');
|
|
process.exit(1);
|
|
}
|
|
|
|
child.unref();
|
|
writePidFile({ pid: child.pid, port, startedAt: new Date().toISOString() });
|
|
|
|
const healthy = await waitForHealth(port, getPlatformTimeout(30000));
|
|
releaseLock();
|
|
|
|
if (!healthy) {
|
|
removePidFile();
|
|
logger.error('SYSTEM', 'Worker failed to restart');
|
|
process.exit(1);
|
|
}
|
|
logger.info('SYSTEM', 'Worker restarted successfully');
|
|
process.exit(0);
|
|
} catch (error) {
|
|
releaseLock();
|
|
throw error;
|
|
}
|
|
}
|
|
|
|
case 'status': {
|
|
const running = await isPortInUse(port);
|
|
const pidInfo = readPidFile();
|
|
if (running && pidInfo) {
|
|
logger.info('SYSTEM', `Worker running (PID: ${pidInfo.pid}, Port: ${pidInfo.port})`);
|
|
} else {
|
|
logger.info('SYSTEM', 'Worker not running');
|
|
}
|
|
process.exit(0);
|
|
}
|
|
|
|
case '--daemon':
|
|
default: {
|
|
// Run server directly
|
|
const worker = new WorkerService();
|
|
|
|
worker.start().catch((error) => {
|
|
logger.failure('SYSTEM', 'Worker failed to start', {}, error as Error);
|
|
removePidFile();
|
|
process.exit(1);
|
|
});
|
|
}
|
|
}
|
|
}
|
|
|
|
if (require.main === module || !module.parent) {
|
|
main();
|
|
}
|