Aren't Queue calls Isolated? I have a simple `queue` function which starts by logging the numbe

Aren't Queue calls Isolated?
I have a simple

queue

queue

function which starts by logging the number of messages logged so far. The

Logger

Logger

Logger

Logger is a simple ES6 module I wrote by myself.
If

queue

queue

calls were isolated (by creating a V8 isolate for each call), then the logged number of messages should always be Zero.
But it's not. It's always increasing which means all

queue

queue

calls are being made within the same running environment.
IS it how it's designed?
I was under impression all Workers calls create a new V8 isolate and there is no shared data/memory between the calls.

AAlexey **Aren't Queue calls Isolated? ** I have a simple `queue` function which starts ...

Hello, I’m Allie!•2/7/24, 5:59 PM

It's definitely not guaranteed to be a new isolate

Hello, I’m Allie!•2/7/24, 5:59 PM

If a Worker is set to be called in the same server/datacenter, then there is a reasonable chance that it spawns in the same isolate

HHello, I’m Allie!If a Worker is set to be called in the same server/datacenter, then there is a r...

AlexeyOP•2/7/24, 6:02 PM

Is it the same for all other Worker invocations (fetch, email, cron)?
Looks like I fundamentally misunderstood Workers. I thought every invocation is completely isolated

AAlexey Is it the same for all other Worker invocations (fetch, email, cron)? Looks like...

Hello, I’m Allie!•2/7/24, 6:02 PM

Yes, though for fetches, for example, the likelihood of hitting the same server/datacenter is decently low, so unless you are running a very large-scale application, isolates are only shared between requests from a single client

HHello, I’m Allie!Yes, though for fetches, for example, the likelihood of hitting the same server/...

AlexeyOP•2/7/24, 6:05 PM

hmm, probably here is the point of my confusion. Doesn't it say that isolates are created for each Worker function call?

AAlexey hmm, probably here is the point of my confusion. Doesn't it say that isolates ar...

Hello, I’m Allie!•2/7/24, 6:07 PM

Hm... Would you mind filing an issue for that on https://github.com/cloudflare/cloudflare-docs?

GitHub

GitHub - cloudflare/cloudflare-docs: Cloudflare’s documentation

Cloudflare’s documentation. Contribute to cloudflare/cloudflare-docs development by creating an account on GitHub.

Hello, I’m Allie!•2/7/24, 6:07 PM

And if you have seen that soemwhere else

HHello, I’m Allie!And if you have seen that soemwhere else

AlexeyOP•2/7/24, 6:20 PM

Ok, I'll do. I created a PR there in December and it haven't got any attention yet. So not sure if creating an issue helps

Edit: created the issue https://github.com/cloudflare/cloudflare-docs/issues/12885

GitHub

Wrong statement about V8 isolates created for each Worker function ...

Which Cloudflare product does this pertain to? Workers Existing documentation URL(s) https://developers.cloudflare.com/workers/reference/how-workers-works/ What changes are you suggesting? See scre...

ian•2/8/24, 6:09 PM

Does CF queues have any concept of fanout jobs? The scenario we're trying to support is sorta similar to batching, a parent job for "srape xyz.com" would be queued up, and that job would enqueue a job for each page on the website, and after all children jobs are finished, the parent would be notified in some way.

Is there any way to accomplish this notifiying the parent job?

Here's how Inngest handles the same scenario: https://www.inngest.com/docs/guides/fan-out-jobs

Fan-out (one-to-many) - Inngest Documentation

How to use the fan-out pattern with Inngest to trigger multiple functions from a single event.

Alvee•2/9/24, 12:43 AM

how is queues . anyone using in production?

Jadugar_Jaggu•2/9/24, 4:45 PM

Hey there does consumer queue have 15 minutes of cpu time per invocation?

Jadugar_Jaggu•2/9/24, 4:46 PM

or is there any hidden condition?

Alvee•2/10/24, 11:05 AM

when will queue remove beta and ready for production

AAlvee when will queue remove beta and ready for production

Matt Silverlock•2/10/24, 12:06 PM

queues

Rrenzor Did http pull ever land?

John Spurlock•2/11/24, 3:36 PM

queues

MMatt Silverlock Plan is this month 🙂

switz•2/13/24, 9:38 PM

just wondering, does this also mean that queues can hold items for consumption later? if so, how long will they remain in the queue?

switz•2/13/24, 9:39 PM

not just delay, I mean if the http pull isn't available and doesn't come online for 1h-24h

Sswitz not just delay, I mean if the http pull isn't available and doesn't come online ...

Matt Silverlock•2/13/24, 9:41 PM

If you don’t consume from a Pull consumer they will stay in the queue for the retention limit - 96 hours: https://developers.cloudflare.com/queues/platform/limits/

Cloudflare Docs

Limits · Cloudflare Queues

Many of these limits will increase during Queues’ public beta period. Follow our changelog or join the #queues-beta channel in our Developer Discord …

switz•2/13/24, 9:42 PM

fantastic, thank you for the info

switz•2/13/24, 9:43 PM

just to drop a link as you guys work on http pull, want to share some prior art in sqs-consumer which I find to be a very helpful API https://github.com/bbc/sqs-consumer

GitHub

GitHub - bbc/sqs-consumer: Build Amazon Simple Queue Service (SQS) ...

Build Amazon Simple Queue Service (SQS) based applications without the boilerplate - bbc/sqs-consumer

switz•2/13/24, 9:44 PM

unclear if you'll release a client library alongside http pull or its just an api, but I like using this with sqs

dattaproffs•2/14/24, 8:32 PM

hi, is it bad practice to have a worker with both a

fetch()

fetch()

and a

queue()

queue()

? the fetch is a simple web page. I'm have a litte troubble understanding what happens when the

queue

queue

forces the worker to scale? Is there any potential problems there?

Ddattaproffs hi, is it bad practice to have a worker with both a `fetch()` and a `queue()` ? ...

Hello, I’m Allie!•2/14/24, 10:15 PM

Nope, not at all. You can have every handler in a single Worker if you want

HHello, I’m Allie!Nope, not at all. You can have every handler in a single Worker if you want

dattaproffs•2/14/24, 10:17 PM

That's what i thought, but couldn't find any direct confirmation. anywhere in docs or so i can read about it? Thank's for the answer

Yigal•2/15/24, 6:28 AM

I have a situation where I have batches writing to KV, but if there are more than one update to the same key in one batch, the KV is likely to be overwritten and miss updates.
I thought it might be useful to hold the operation of the next batch\message until the first one ends.
How would you go about this kind of issue?

Yigal•2/15/24, 5:04 PM

Is there a way to control the time gap between each batch?

YYigal Is there a way to control the time gap between each batch?

Matt Silverlock•2/15/24, 11:33 PM

You can set the batch interval. If you need to delay messages, then see queues

piffie•2/22/24, 2:31 PM

Are there statistics available how long it takes for a queue to send it to an consumer? Is it typically less than a second? (not counting retries or something, just the typical case)

AApro Can we implement a queue consumer that is not a worker?

Matt Silverlock•2/27/24, 5:52 AM

Soon: queues

Matt Silverlock•2/27/24, 5:53 AM

We're also going to be changing the default content type — this will NOT be a breaking change as this will only impact new Workers and/or users that use the compatibility flag — to

json

json

, from the existing

v8

v8

default. This will improve compatibility with pull-based consumers when we release them.

MMatt Silverlock We're also going to be changing the default content type — this will NOT be a br...

Matt Silverlock•2/27/24, 5:54 AM

Docs PR: https://github.com/cloudflare/cloudflare-docs/pull/13170 - the target date for the new default is

2024-03-04

2024-03-04

GitHub

queues: Update javascript-apis.md by elithrar · Pull Request #13170...

Note: Merge this first - #13162
This PR:

Adds a changelog entry for the content type default change: #13162
Updates the QueuesContentType docs
Updates the How Queues Work doc to highlight this ...

mzadz•2/27/24, 8:02 PM

Hey question - if you place your consumer for a queue in the same worker that calls it, does it spawn a separate "process" or w/e the right terminology is, that is has its own resources? Or does it run in the same worker process?

Conner•2/27/24, 8:32 PM

Question on batch splitting if anyone knows answer:

If my batch messages are like

{ task_id, subtask_data }

{ task_id, subtask_data }

, and when I call sendBatch all messages in the batch have the same

task_id

task_id

, then can I guarantee that all messages in the consumer have the same

task_id

task_id

? Or will retries or max batch sizes mess with this?

Mmzadz Hey question - if you place your consumer for a queue in the same worker that ca...

Sam•2/27/24, 9:50 PM

Spawns a new worker

CConner Question on batch splitting if anyone knows answer: If my batch messages are li...

Matt Silverlock•2/28/24, 8:16 AM

No, you can't guarantee that today. The batches you write can't be the same as the batches you receive - because you might write smaller batches than you want to consume (max_batch_size) or wait for (max_wait_time).

Alisson Acioli•2/28/24, 7:48 PM

Hello, is there any estimate on when the feature of adding a delay will be released if a retry occurs in a message? My messages are trying immediately after failing and then leaving the queue, causing me to lose data

Sébastien Morel•2/28/24, 8:33 PM

hello here, I could debug that sending a simple payload to a queue is making my producer worker crazy slower. would you see a reason? Do queues have locations ?

Sébastien Morel•2/28/24, 8:40 PM

I am talking about hundred of milliseconds to

.send

.send

to a queue. (that if I understood it right) must be awaited...
I can't be the only one experiencing that, right ?

Sébastien Morel•2/28/24, 8:51 PM

ha! that's interesting

Sébastien Morel•2/28/24, 8:51 PM

cause I have logged more, and the

send

send

takes between 200ms and 300ms

Sébastien Morel•2/28/24, 8:53 PM

I think the document should mention that, cause I won't be the last following it

Sébastien Morel•2/28/24, 8:54 PM

https://developers.cloudflare.com/queues/reference/how-queues-works/#producers

Sébastien Morel•2/28/24, 9:04 PM

thank you @nora once again!

AAlisson Acioli Hello, is there any estimate on when the feature of adding a delay will be relea...

dsds10•2/28/24, 9:15 PM

Maybe you could try disabling retry and instead use a dead letter queue with higher timeout, or store fail state in kv and check every message if it was retried, then just let it wait the amount of time you need (since you don‘t pay for wall clock time anyway)

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