[Solved] In a Node.js cluster, how do you correctly attach a listener to detect when a worker process exits? — Ans: worker.on('exit', (code, signal) => { /* handler */ }); | Node.js

Node.js - Cluster Module

In a Node.js cluster, how do you correctly attach a listener to detect when a worker process exits?

Acluster.on('exit', (worker, code, signal) => { /* handler */ });

Bcluster.worker.on('exit', (code, signal) => { /* handler */ });

Cworker.on('exit', (code, signal) => { /* handler */ });

Dprocess.on('exit', (worker) => { /* handler */ });

Step-by-Step Solution

Solution:

Step 1: Identify the event emitter
The 'exit' event for a worker is emitted on the worker object itself, not the cluster or process.
Step 2: Attach listener to the worker
Use worker.on('exit', callback) to listen for the exit event.
Final Answer:
worker.on('exit', (code, signal) => { /* handler */ }); corresponds to worker.on('exit', (code, signal) => { /* handler */ });.
Quick Check:
Listener must be on the worker instance, not cluster or process. [OK]

Quick Trick: Listen to 'exit' on worker instance, not cluster or process [OK]

Common Mistakes:

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In a Node.js cluster, how do you correctly attach a listener to detect when a worker process exits?