Nick: clusters
This commit is contained in:
Nicolas
+178
-153
@@ -5,190 +5,215 @@ import "dotenv/config";
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import { getWebScraperQueue } from "./services/queue-service";
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import { redisClient } from "./services/rate-limiter";
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import { v0Router } from "./routes/v0";
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import { initSDK } from '@hyperdx/node-opentelemetry';
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import { initSDK } from "@hyperdx/node-opentelemetry";
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import cluster from "cluster";
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import os from "os";
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const { createBullBoard } = require("@bull-board/api");
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const { BullAdapter } = require("@bull-board/api/bullAdapter");
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const { ExpressAdapter } = require("@bull-board/express");
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export const app = express();
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const numCPUs = os.cpus().length;
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console.log(`Number of CPUs: ${numCPUs} available`);
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global.isProduction = process.env.IS_PRODUCTION === "true";
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if (cluster.isMaster) {
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console.log(`Master ${process.pid} is running`);
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(bodyParser.json({ limit: "10mb" }));
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// Fork workers.
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for (let i = 0; i < numCPUs; i++) {
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cluster.fork();
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}
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app.use(cors()); // Add this line to enable CORS
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const serverAdapter = new ExpressAdapter();
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serverAdapter.setBasePath(`/admin/${process.env.BULL_AUTH_KEY}/queues`);
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const { addQueue, removeQueue, setQueues, replaceQueues } = createBullBoard({
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queues: [new BullAdapter(getWebScraperQueue())],
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serverAdapter: serverAdapter,
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});
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app.use(
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`/admin/${process.env.BULL_AUTH_KEY}/queues`,
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serverAdapter.getRouter()
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);
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app.get("/", (req, res) => {
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res.send("SCRAPERS-JS: Hello, world! Fly.io");
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});
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//write a simple test function
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app.get("/test", async (req, res) => {
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res.send("Hello, world!");
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});
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// register router
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app.use(v0Router);
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const DEFAULT_PORT = process.env.PORT ?? 3002;
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const HOST = process.env.HOST ?? "localhost";
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redisClient.connect();
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// HyperDX OpenTelemetry
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if(process.env.ENV === 'production') {
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initSDK({ consoleCapture: true, additionalInstrumentations: []});
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}
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export function startServer(port = DEFAULT_PORT) {
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const server = app.listen(Number(port), HOST, () => {
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console.log(`Server listening on port ${port}`);
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console.log(
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`For the UI, open http://${HOST}:${port}/admin/${process.env.BULL_AUTH_KEY}/queues`
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);
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console.log("");
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console.log("1. Make sure Redis is running on port 6379 by default");
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console.log(
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"2. If you want to run nango, make sure you do port forwarding in 3002 using ngrok http 3002 "
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);
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cluster.on("exit", (worker, code, signal) => {
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console.log(`Worker ${worker.process.pid} exited`);
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console.log("Starting a new worker");
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cluster.fork();
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});
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return server;
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}
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} else {
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const app = express();
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if (require.main === module) {
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startServer();
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}
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global.isProduction = process.env.IS_PRODUCTION === "true";
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// Use this as a "health check" that way we dont destroy the server
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app.get(`/admin/${process.env.BULL_AUTH_KEY}/queues`, async (req, res) => {
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try {
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const webScraperQueue = getWebScraperQueue();
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const [webScraperActive] = await Promise.all([
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webScraperQueue.getActiveCount(),
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]);
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(bodyParser.json({ limit: "10mb" }));
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const noActiveJobs = webScraperActive === 0;
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// 200 if no active jobs, 503 if there are active jobs
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return res.status(noActiveJobs ? 200 : 500).json({
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webScraperActive,
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noActiveJobs,
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});
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} catch (error) {
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console.error(error);
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return res.status(500).json({ error: error.message });
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app.use(cors()); // Add this line to enable CORS
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const serverAdapter = new ExpressAdapter();
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serverAdapter.setBasePath(`/admin/${process.env.BULL_AUTH_KEY}/queues`);
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const { addQueue, removeQueue, setQueues, replaceQueues } = createBullBoard({
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queues: [new BullAdapter(getWebScraperQueue())],
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serverAdapter: serverAdapter,
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});
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app.use(
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`/admin/${process.env.BULL_AUTH_KEY}/queues`,
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serverAdapter.getRouter()
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);
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app.get("/", (req, res) => {
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res.send("SCRAPERS-JS: Hello, world! Fly.io");
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});
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//write a simple test function
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app.get("/test", async (req, res) => {
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res.send("Hello, world!");
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});
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// register router
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app.use(v0Router);
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const DEFAULT_PORT = process.env.PORT ?? 3002;
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const HOST = process.env.HOST ?? "localhost";
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redisClient.connect();
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// HyperDX OpenTelemetry
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if (process.env.ENV === "production") {
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initSDK({ consoleCapture: true, additionalInstrumentations: [] });
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}
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});
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app.get(`/serverHealthCheck`, async (req, res) => {
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try {
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const webScraperQueue = getWebScraperQueue();
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const [waitingJobs] = await Promise.all([
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webScraperQueue.getWaitingCount(),
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]);
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const noWaitingJobs = waitingJobs === 0;
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// 200 if no active jobs, 503 if there are active jobs
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return res.status(noWaitingJobs ? 200 : 500).json({
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waitingJobs,
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function startServer(port = DEFAULT_PORT) {
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const server = app.listen(Number(port), HOST, () => {
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console.log(`Worker ${process.pid} listening on port ${port}`);
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console.log(
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`For the UI, open http://${HOST}:${port}/admin/${process.env.BULL_AUTH_KEY}/queues`
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);
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console.log("");
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console.log("1. Make sure Redis is running on port 6379 by default");
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console.log(
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"2. If you want to run nango, make sure you do port forwarding in 3002 using ngrok http 3002 "
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);
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});
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} catch (error) {
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console.error(error);
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return res.status(500).json({ error: error.message });
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return server;
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}
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});
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app.get('/serverHealthCheck/notify', async (req, res) => {
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if (process.env.SLACK_WEBHOOK_URL) {
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const treshold = 1; // The treshold value for the active jobs
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const timeout = 60000; // 1 minute // The timeout value for the check in milliseconds
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if (require.main === module) {
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startServer();
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}
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const getWaitingJobsCount = async () => {
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// Use this as a "health check" that way we dont destroy the server
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app.get(`/admin/${process.env.BULL_AUTH_KEY}/queues`, async (req, res) => {
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try {
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const webScraperQueue = getWebScraperQueue();
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const [waitingJobsCount] = await Promise.all([
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const [webScraperActive] = await Promise.all([
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webScraperQueue.getActiveCount(),
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]);
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const noActiveJobs = webScraperActive === 0;
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// 200 if no active jobs, 503 if there are active jobs
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return res.status(noActiveJobs ? 200 : 500).json({
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webScraperActive,
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noActiveJobs,
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});
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} catch (error) {
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console.error(error);
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return res.status(500).json({ error: error.message });
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}
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});
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app.get(`/serverHealthCheck`, async (req, res) => {
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try {
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const webScraperQueue = getWebScraperQueue();
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const [waitingJobs] = await Promise.all([
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webScraperQueue.getWaitingCount(),
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]);
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return waitingJobsCount;
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};
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const noWaitingJobs = waitingJobs === 0;
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// 200 if no active jobs, 503 if there are active jobs
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return res.status(noWaitingJobs ? 200 : 500).json({
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waitingJobs,
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});
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} catch (error) {
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console.error(error);
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return res.status(500).json({ error: error.message });
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}
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});
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res.status(200).json({ message: "Check initiated" });
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app.get("/serverHealthCheck/notify", async (req, res) => {
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if (process.env.SLACK_WEBHOOK_URL) {
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const treshold = 1; // The treshold value for the active jobs
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const timeout = 60000; // 1 minute // The timeout value for the check in milliseconds
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const checkWaitingJobs = async () => {
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try {
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let waitingJobsCount = await getWaitingJobsCount();
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if (waitingJobsCount >= treshold) {
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setTimeout(async () => {
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// Re-check the waiting jobs count after the timeout
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waitingJobsCount = await getWaitingJobsCount();
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if (waitingJobsCount >= treshold) {
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const slackWebhookUrl = process.env.SLACK_WEBHOOK_URL;
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const message = {
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text: `⚠️ Warning: The number of active jobs (${waitingJobsCount}) has exceeded the threshold (${treshold}) for more than ${timeout/60000} minute(s).`,
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};
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const getWaitingJobsCount = async () => {
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const webScraperQueue = getWebScraperQueue();
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const [waitingJobsCount] = await Promise.all([
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webScraperQueue.getWaitingCount(),
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]);
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const response = await fetch(slackWebhookUrl, {
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method: 'POST',
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headers: {
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'Content-Type': 'application/json',
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},
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body: JSON.stringify(message),
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})
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if (!response.ok) {
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console.error('Failed to send Slack notification')
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return waitingJobsCount;
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};
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res.status(200).json({ message: "Check initiated" });
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const checkWaitingJobs = async () => {
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try {
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let waitingJobsCount = await getWaitingJobsCount();
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if (waitingJobsCount >= treshold) {
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setTimeout(async () => {
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// Re-check the waiting jobs count after the timeout
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waitingJobsCount = await getWaitingJobsCount();
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if (waitingJobsCount >= treshold) {
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const slackWebhookUrl = process.env.SLACK_WEBHOOK_URL;
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const message = {
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text: `⚠️ Warning: The number of active jobs (${waitingJobsCount}) has exceeded the threshold (${treshold}) for more than ${
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timeout / 60000
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} minute(s).`,
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};
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const response = await fetch(slackWebhookUrl, {
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method: "POST",
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headers: {
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"Content-Type": "application/json",
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},
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body: JSON.stringify(message),
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});
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if (!response.ok) {
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console.error("Failed to send Slack notification");
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}
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}
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}
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}, timeout);
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}, timeout);
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}
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} catch (error) {
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console.error(error);
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}
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} catch (error) {
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console.error(error);
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}
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};
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};
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checkWaitingJobs();
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}
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});
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checkWaitingJobs();
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}
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});
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app.get(`/admin/${process.env.BULL_AUTH_KEY}/clean-before-24h-complete-jobs`, async (req, res) => {
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try {
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const webScraperQueue = getWebScraperQueue();
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const completedJobs = await webScraperQueue.getJobs(['completed']);
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const before24hJobs = completedJobs.filter(job => job.finishedOn < Date.now() - 24 * 60 * 60 * 1000);
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const jobIds = before24hJobs.map(job => job.id) as string[];
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let count = 0;
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for (const jobId of jobIds) {
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app.get(
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`/admin/${process.env.BULL_AUTH_KEY}/clean-before-24h-complete-jobs`,
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async (req, res) => {
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try {
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await webScraperQueue.removeJobs(jobId);
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count++;
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} catch (jobError) {
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console.error(`Failed to remove job with ID ${jobId}:`, jobError);
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const webScraperQueue = getWebScraperQueue();
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const completedJobs = await webScraperQueue.getJobs(["completed"]);
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const before24hJobs = completedJobs.filter(
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(job) => job.finishedOn < Date.now() - 24 * 60 * 60 * 1000
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);
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const jobIds = before24hJobs.map((job) => job.id) as string[];
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let count = 0;
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for (const jobId of jobIds) {
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try {
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await webScraperQueue.removeJobs(jobId);
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count++;
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} catch (jobError) {
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console.error(`Failed to remove job with ID ${jobId}:`, jobError);
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}
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}
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res.status(200).send(`Removed ${count} completed jobs.`);
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} catch (error) {
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console.error("Failed to clean last 24h complete jobs:", error);
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res.status(500).send("Failed to clean jobs");
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}
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}
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res.status(200).send(`Removed ${count} completed jobs.`);
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} catch (error) {
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console.error('Failed to clean last 24h complete jobs:', error);
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res.status(500).send('Failed to clean jobs');
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}
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});
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);
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app.get("/is-production", (req, res) => {
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res.send({ isProduction: global.isProduction });
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});
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app.get("/is-production", (req, res) => {
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res.send({ isProduction: global.isProduction });
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});
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// /workers health check, cant act as load balancer, just has to be a pre deploy thing
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console.log(`Worker ${process.pid} started`);
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}
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