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NODE.JS · PM2 · NGINX · WEBSOCKET

Node.js VPS Hosting: Size APIs, WebSockets and SSR Workloads Separately

High concurrent connections and CPU-heavy SSR do not share the same resource profile in Node.js. API requests, WebSocket connections, background jobs and database traffic should be observed separately.

protocol / 2026
01API
02WebSocket
03PM2
04Nginx
Updated · 18.08.2026
01
On this page

How much RAM does a Node.js VPS need?

A small REST API can start around 2 GB, while Next.js SSR, multiple PM2 workers, Redis and a database on the same host may require 4–8 GB or more. Measure heap use and event-loop latency.

On this pageNode.js VPS Hosting: Size APIs, WebSockets and SSR Workloads Separately
01
Request flow

Separate the Node.js production request flow into layers

Separating TLS/reverse proxy, app processes and database simplifies operations.

01Client
02Nginx / TLS
03Node.js App
04Redis / Queue
05Database
02
Workload profile

Where do REST APIs, WebSockets and SSR bottleneck?

Choosing a plan from requests/sec alone without measurement is misleading.

REST APICPU + DBRequest durationMedium
WebSocketMemory + connectionsLong-livedConcurrency
SSRCPURender-heavyBursty
WorkerCPU/memoryBackground jobsQueue
03
Process management

PM2 and Node.js server health checks

Monitor memory thresholds, logs and process restarts.

Command 1
node --version
Command 2
npm --version
Command 3
pm2 status
Command 4
pm2 monit
Command 5
pm2 logs --lines 100
Command 6
ss -lntp
04
Production

Security and operations checklist for Node.js VPS

Running the app as root and exposing database ports publicly creates unnecessary risk.

Run app as dedicated user
Nginx as 80/443 ingress
Database private/local
Secrets in env/secret store
Log rotation
Process auto-start
Official documentation

Official sources

Node.jsDocumentationnodejs.orgPM2Documentationpm2.keymetrics.ioEKA SunucuVPSwww.ekasunucu.com
FAQ

Frequently asked questions

Is PM2 required?

No. systemd, Docker or another process manager can be used, but restart, logging and startup must be managed.

Is 2 GB VPS enough for Node.js?

It can be for a small API; SSR, builds, Redis and databases on the same host may require more.

Do WebSockets require high CPU?

Not always. With many long-lived connections, memory, file descriptors and network limits can matter as much as CPU.

EKA YAZILIM VE BİLİŞİM SİSTEMLERİ

Size Node.js VPS by API, WebSocket and SSR profile

Share framework, concurrency, PM2 workers, database and traffic; we can size the VPS.

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