Usage of Node.js Cluster vs Worker

#javascript #node #cluster #workerthread

The Cluster

The cluster module allows node.js to spawn multiple processes that can share the same server port and handle incoming requests each process runs.

Key characteristics of Cluster

Manager Role
Worker Processes
Load Balancing
Fault Tolerance

Advantage of Cluster

high availability of service
little to no downtime
basic scalability based on demand

Worker
The Worker thread as a separate CPU core making it more efficient on the other hand worker threads allow a single node.js process to create and manage multiple threads for parallel execution of tasks.

Key characteristics of Worker

Independent Execution
Concurrency
Scalability
Resource Isolation

Advantage of Worker

freeing up the main thread
processing of CPU-intensive requests
native JS multithreading

Summary

Use the cluster module when you want your node.js application to be highly available and scalable because it's gonna scale

Use worker threads if you want to be able to process CPU intensive tasks in one go.

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