implementing EventEmitter Memory Leak Warning in Node.js when Handling Large Streams
Quick question that's been bugging me - I've searched everywhere and can't find a clear answer. I'm working on a Node.js application that processes large CSV files using `fs.createReadStream()` along with an `EventEmitter` to streamline the read events. However, I'm working with a memory leak warning that says, "(node) warning: possible EventEmitter memory leak detected. 11 listeners added. Use emitter.setMaxListeners() to increase limit." This occurs after processing a few files, and I need to seem to pinpoint the reason behind it. Here's a snippet of my code: ```javascript const fs = require('fs'); const EventEmitter = require('events'); class FileProcessor extends EventEmitter { constructor() { super(); this.on('data', this.processData); } processFile(filePath) { const stream = fs.createReadStream(filePath); stream.on('data', (chunk) => { this.emit('data', chunk); }); stream.on('end', () => { console.log('File processing completed.'); }); } processData(chunk) { // Simulated processing logic console.log(`Processing chunk of size: ${chunk.length}`); } } const fileProcessor = new FileProcessor(); fileProcessor.processFile('largeFile.csv'); ``` I've tried various approaches, like increasing the listener limit using `setMaxListeners()`, but that doesn't seem to resolve the underlying scenario. I've also ensured that I'm not accidentally creating multiple instances of `FileProcessor` that could lead to multiple listeners being added. When I run this on Node.js version 16.13.0, it seems to consume an increasing amount of memory until it eventually crashes. Any insights on how to manage event listeners effectively in this scenario or strategies for handling large streams without running into memory issues would be greatly appreciated. My development environment is Windows. Is this even possible?