Node.js applications are single-threaded, which can cause problems for CPU-intensive tasks that block the event loop.
The worker_threads module allows you to run JavaScript in parallel in isolated contexts to avoid blocking the main thread.
Worker threads communicate with the main thread via message passing instead of shared memory, avoiding race conditions.
Worker threads are well-suited for parallelizing CPU-bound tasks compared to alternatives like child processes and clustering.
There are some best practices to follow when using worker threads: create a pool of reusable workers, properly handle shutdown, avoid shared state, and evaluate performance implications.
Web workers serve a similar purpose in the browser, offloading intensive computations from the main UI thread.
Worker threads help parallelize CPU-intensive computations on the server-side in Node.js, while web workers do the same for client-side JavaScript in the browser.
The pod likely has resource limits on CPU, memory, etc. Make sure your worker threads don't overwhelm the resources.
Created on 1/21/2024