👀 Views: 28 💬 Answers: 1 📅 Created: 2025-06-07

node.js mongodb express performance javascript

I've been struggling with this for a few days now and could really use some help. I'm integrating two systems and Does anyone know how to I've looked through the documentation and I'm still confused about I tried several approaches but none seem to work..... I'm currently working on a Node.js API using Express and MongoDB (Mongoose 5.12.3) that has started experiencing performance optimization as our user base grows. We've noticed high latency in API responses, particularly during peak hours. I suspect that the number of concurrent database connections might be the scenario, as we are seeing errors like `MongoNetworkError: connection pool is full` in our logs. To mitigate this, I've tried increasing the connection pool size in the Mongoose configuration: ```javascript mongoose.connect('mongodb://localhost:27017/mydb', { useNewUrlParser: true, useUnifiedTopology: true, poolSize: 20 // default is 5 }); ``` However, this hasn't resolved the scenario. I also implemented caching using Redis to reduce database load for frequently accessed data. Here's a snippet of my caching logic: ```javascript const cache = require('redis').createClient(); app.get('/api/data', (req, res) => { const key = 'data'; cache.get(key, (err, cachedData) => { if (err) return res.status(500).send(err); if (cachedData) return res.status(200).send(JSON.parse(cachedData)); // If not cached, fetch from DB MyModel.find({}, (dbErr, data) => { if (dbErr) return res.status(500).send(dbErr); cache.setex(key, 3600, JSON.stringify(data)); // cache for 1 hour res.status(200).send(data); }); }); }); ``` Despite these efforts, the response time remains inconsistent, causing timeouts for some users. I also checked the server metrics and noticed that CPU usage spikes during peak times. Could the MongoDB connection limit be affecting performance even after increasing the pool size? Are there other best practices or design patterns that I should consider for scaling this API effectively? My development environment is Ubuntu. I'd really appreciate any guidance on this. Could someone point me to the right documentation? For context: I'm using Javascript on Linux. Am I approaching this the right way?