setting this in queues consumer ```[[queues.consumers]] queue = "gopersonal-llm-ranking-queue" max_b

setting this in queues consumer

[[queues.consumers]]
queue = "gopersonal-llm-ranking-queue"
max_batch_size = 100
max_batch_timeout = 180
max_concurrency = 1

[[queues.consumers]]
queue = "gopersonal-llm-ranking-queue"
max_batch_size = 100
max_batch_timeout = 180
max_concurrency = 1

and getting the error ✘ [ERROR] A request to the Cloudflare API (/accounts/920b1a6e159cf77dab28969103a4765b/queues/c30e85e6726c455b880498715d8a0b4c/consumers/5bad5c90b2644f498177c45a164e96ac) failed. Queue consumer (type worker) has invalid settings: maximum wait time must be between 0 and 60000 ms. [code: 100127]
If you think this is a bug, please open an issue at: https://github.com/cloudflare/workers-sdk/issues/new/choose if we put the value of max_batch_timeout to 60 it works.., that means the error message is in milliseconds and the actual limit is 60 seconds?

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18 Replies

John Spurlock•3mo ago

yep you got it, the max batch wait time is 60 seconds [1], the backend rest api takes milliseconds [2], so wrangler multiplies the config value by 1000 [3], making the error message confusing : ) [1] https://developers.cloudflare.com/queues/platform/limits/ [2] https://developers.cloudflare.com/api/resources/queues/subresources/consumers/methods/create/ [3] https://github.com/cloudflare/workers-sdk/blob/0322d085f634c1a0a12a59b4db293088d0cadb62/packages/wrangler/src/deploy/deploy.ts#L1236

scottoOP•3mo ago

thanks, any plans to increase those limits?

John Spurlock•3mo ago

someone orange would have to speak to that - personally I would love to see larger values allowed there and also the batch size 100msg/256kb lifted a bit as well

HowlOftheSun•3mo ago

~~What would cause a queue to send the same msg multiple times? Is there a timeout i might have set wrong?~~ Errors cause retries.... 🤦 which cause more errors 🤦 🤦

ajgeiss0702•3mo ago

Did the queues sendBatch api change? I've been running a worker in production for around 7 months now, and it has been working fine. The past few days (first occurance was Febuary 21st, 23:40 UTC, and the previous successful evocation was 23:10 UTC), i've suddenly been getting an error: sendBatch() requires at least one message I've added an additional check in my code to make sure the batch isnt empty to fix the issue, but I missed 2 days of data (that I cannot recover) before I noticed the issue. Is this a recent change in the queues api? I would appreciate it if you could ping me when you reply 🙂

adeola13.•3mo ago

Hello! How does one deploy multiple queue handlers (for different queues) in one single worker deployment project in wrangler? So in my main index.ts I would like to have multiple queue consumer handlers for different queues.

import producerHandler from './producer';
import consumerHandler from './consumer';
import { Env, TrackingEvent } from './types';

export default {
    fetch: producerHandler.fetch,
    queue: consumerHandler.queue,
} satisfies ExportedHandler<Env, TrackingEvent>;

import producerHandler from './producer';
import consumerHandler from './consumer';
import { Env, TrackingEvent } from './types';

export default {
    fetch: producerHandler.fetch,
    queue: consumerHandler.queue,
} satisfies ExportedHandler<Env, TrackingEvent>;

James•3mo ago

You can only have one consumer function in your worker code, but you can get the name of the queue on MessageBatch: https://developers.cloudflare.com/queues/configuration/javascript-apis/#messagebatch This way you can effectively handle multiple different queues and just change the code you execute depending on the queue name

adeola13.•3mo ago

ah I see! Very helpful! And so then I can just bind multiple queue consumers to this worker and then my handler would only be able to read from messages send to the consumers that were bound from it is that right?

James•3mo ago

Correct, yep!

LordSilver•2mo ago

i remembered queues was made free damn, i just had to test the tf provider...

cloudkite•2mo ago

has anyone succesfully gotten browser rendering to work with queues? I can't even launch a browser without it locking up the worker https://github.com/cloudflare/puppeteer/issues/93

GitHub

[Bug]: Using the sessions API causes hanging queue · Issue #93 · cl...

Minimal, reproducible example import { WorkerEntrypoint } from "cloudflare:workers"; import puppeteer, { type Browser } from "@cloudflare/puppeteer"; export default class extend...

ajgeiss0702•2mo ago

When I had browser rendering working with queues, i was running into all sorts of issues. I would recommend writing a Durable Object to handle the browser rendering, and calling that from the queue

cloudkite•2mo ago

Not ideal as then you have to pay for wall time

Unknown User•2mo ago

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ajgeiss0702•2mo ago

true. You could probably also make it work with a regular service binding.

ajgeiss0702•2mo ago

there is a limit increase request form at the bottom of the limits page: https://developers.cloudflare.com/queues/platform/limits/

Cloudflare Docs

Limits · Cloudflare Queues

1 1 KB is measured as 1000 bytes. Messages can include up to ~100 bytes of internal metadata that counts towards total message limits.

highvoltage•2mo ago

I'm also experiencing this issue. There seems to be something with the Browser Rendering/Puppeteer API that is causing the queue worker to hang and then ultimately fail. I don't see any meaningful logs in the worker or browser rendering GUI either other than the timeout/disconnect log.

FluidPrompter•2mo ago

Where do queue consumers execute? I've tried some searching here, but can't seem to find an authoritative answer... I mean you could have event fed into a queue from all over the world, but to ensure ordered handling, do consumers only execute in 1 geographic location? Meaning the latency from a producer queueing a message to a consumer processing a messaging will vary significantly and so queues should not be used for anything "real-time-ish" - is that correct?

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setting this in queues consumer ```[[queues.consumers]] queue = "gopersonal-llm-ranking-queue" max_b

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