[Solved] Identify the error in this cluster setup code:const cluster = require('cluster'); if (cluster.isWorker) { console.log('Master process running'); } else { cluster.fork(); } | Node.js

Node.js - Cluster Module

Identify the error in this cluster setup code:

const cluster = require('cluster');
if (cluster.isWorker) {
  console.log('Master process running');
} else {
  cluster.fork();
}

AUsing cluster.isWorker instead of cluster.isMaster to check master

BCalling cluster.fork() inside the worker process

CMissing event listener for worker exit

DNo error, code is correct

Step-by-Step Solution

Solution:

Step 1: Check condition logic
The code uses cluster.isWorker to detect master, which is incorrect; master should be checked with cluster.isMaster.
Step 2: Confirm fork usage
Fork is called in the else block, which runs in master, so no fork inside worker.
Final Answer:
Using cluster.isWorker instead of cluster.isMaster to check master -> Option A
Quick Check:
Use cluster.isMaster to detect master = B [OK]

Quick Trick: Use cluster.isMaster to detect master process [OK]

Common Mistakes:

Master "Cluster Module" in Node.js

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