Questions about serverless functions concurrency and rate limit
Unanswered
Pixiebob posted this in #help-forum
PixiebobOP
My Next13 app is deployed to Vercel, and it looks like Vercel has handling for burst concurrency limits: https://vercel.com/docs/functions/serverless-functions/runtimes#burst-concurrency-limits
TL;DR Vercel will automatically increase the concurrency limit when there's an influx of traffic, 1,000 concurrent executions per 10 seconds, up to 30,000 concurrent executions for all plans. However, I'm still seeing some errors, I'm not 100% sure if it's a rate limit error since i didn't receive a 429 error, instead I get the _error.tsx HTML in the failure response. Is this a common behavior for rate limit errors? If not then what could this be? Retrying the request usually works and it happens more often on functions with high throughput.
TL;DR Vercel will automatically increase the concurrency limit when there's an influx of traffic, 1,000 concurrent executions per 10 seconds, up to 30,000 concurrent executions for all plans. However, I'm still seeing some errors, I'm not 100% sure if it's a rate limit error since i didn't receive a 429 error, instead I get the _error.tsx HTML in the failure response. Is this a common behavior for rate limit errors? If not then what could this be? Retrying the request usually works and it happens more often on functions with high throughput.