Hello, Getting unhelpful error messages from Cloudflare Workflows. The logs only show generic "run"

Hello,
Getting unhelpful error messages from Cloudflare Workflows.
The logs only show generic "run" errors without any actual error details or stack traces:

{ "source": { "level": "error", "message": "run" }, "dataset": "cloudflare-workers", "timestamp": "2025-09-17T14:51:22.136Z", "$workers": { "diagnosticsChannelEvents": [], "truncated": false, "event": { "rpcMethod": "run" }, "scriptName": "worker-insight-staging", "outcome": "exception", "eventType": "rpc", "entrypoint": "FetchAdInsightsWorkflow", "scriptVersion": { "id": "f85a34a5-8a00-4692-b0bc-4c80b91fe8ef" }, "executionModel": "stateless", "requestId": "PUFWDN8JVB9SKDFI", "wallTimeMs": 463, "cpuTimeMs": 3 }, "$metadata": { "id": "01K5C2H8MR4QRA6B5HE0KF1FBX", "requestId": "PUFWDN8JVB9SKDFI", "trigger": "default.run", "service": "worker-insight-staging", "level": "error", "error": "run", "message": "run", "account": "e97e3fed722428f4d726062eae9aa766", "type": "cf-worker-event", "fingerprint": "34bb94fedcdf1b63ffea70b314aa379b", "origin": "rpc", "messageTemplate": "run" }, "links": [] }

{ "source": { "level": "error", "message": "run" }, "dataset": "cloudflare-workers", "timestamp": "2025-09-17T14:51:22.136Z", "$workers": { "diagnosticsChannelEvents": [], "truncated": false, "event": { "rpcMethod": "run" }, "scriptName": "worker-insight-staging", "outcome": "exception", "eventType": "rpc", "entrypoint": "FetchAdInsightsWorkflow", "scriptVersion": { "id": "f85a34a5-8a00-4692-b0bc-4c80b91fe8ef" }, "executionModel": "stateless", "requestId": "PUFWDN8JVB9SKDFI", "wallTimeMs": 463, "cpuTimeMs": 3 }, "$metadata": { "id": "01K5C2H8MR4QRA6B5HE0KF1FBX", "requestId": "PUFWDN8JVB9SKDFI", "trigger": "default.run", "service": "worker-insight-staging", "level": "error", "error": "run", "message": "run", "account": "e97e3fed722428f4d726062eae9aa766", "type": "cf-worker-event", "fingerprint": "34bb94fedcdf1b63ffea70b314aa379b", "origin": "rpc", "messageTemplate": "run" }, "links": [] }

{ "source": { "level": "error", "message": "run" }, "dataset": "cloudflare-workers", "timestamp": "2025-09-17T14:51:22.136Z", "$workers": { "diagnosticsChannelEvents": [], "truncated": false, "event": { "rpcMethod": "run" }, "scriptName": "worker-insight-staging", "outcome": "exception", "eventType": "rpc", "entrypoint": "FetchAdInsightsWorkflow", "scriptVersion": { "id": "f85a34a5-8a00-4692-b0bc-4c80b91fe8ef" }, "executionModel": "stateless", "requestId": "PUFWDN8JVB9SKDFI", "wallTimeMs": 463, "cpuTimeMs": 3 }, "$metadata": { "id": "01K5C2H8MR4QRA6B5HE0KF1FBX", "requestId": "PUFWDN8JVB9SKDFI", "trigger": "default.run", "service": "worker-insight-staging", "level": "error", "error": "run", "message": "run", "account": "e97e3fed722428f4d726062eae9aa766", "type": "cf-worker-event", "fingerprint": "34bb94fedcdf1b63ffea70b314aa379b", "origin": "rpc", "messageTemplate": "run" }, "links": [] }

{ "source": { "level": "error", "message": "run" }, "dataset": "cloudflare-workers", "timestamp": "2025-09-17T14:51:22.136Z", "$workers": { "diagnosticsChannelEvents": [], "truncated": false, "event": { "rpcMethod": "run" }, "scriptName": "worker-insight-staging", "outcome": "exception", "eventType": "rpc", "entrypoint": "FetchAdInsightsWorkflow", "scriptVersion": { "id": "f85a34a5-8a00-4692-b0bc-4c80b91fe8ef" }, "executionModel": "stateless", "requestId": "PUFWDN8JVB9SKDFI", "wallTimeMs": 463, "cpuTimeMs": 3 }, "$metadata": { "id": "01K5C2H8MR4QRA6B5HE0KF1FBX", "requestId": "PUFWDN8JVB9SKDFI", "trigger": "default.run", "service": "worker-insight-staging", "level": "error", "error": "run", "message": "run", "account": "e97e3fed722428f4d726062eae9aa766", "type": "cf-worker-event", "fingerprint": "34bb94fedcdf1b63ffea70b314aa379b", "origin": "rpc", "messageTemplate": "run" }, "links": [] }

This makes debugging impossible. Is there a way to get actual error messages/stack traces from Workflows? Or is this a known logging issue?

It's a log from the worker. from the workflow page, there is no errors.

OOlriko Hello, Getting unhelpful error messages from Cloudflare Workflows. The logs only...

Seekerdasbatatas•9/17/25, 3:37 PM

This is an unfortunate side effect of how we guarantee durable execution, and we are trying to improve the logging pipeline so that they are not noisy for y'all

:soontm: - my recommendation for a workaround is to filter the errors from logs that don't contain error messages or stacks

SSeekerdasbatatas This is an unfortunate side effect of how we guarantee durable execution, and we...

OlrikoOP•9/17/25, 4:17 PM

oh ok. so this log is not an error.
It should be awesome if logs can be displayed into the step or instance view :MeowHeartCloudflare:

flof.fly•9/17/25, 6:34 PM

Can i use introspectWorkflow testing inside a runInDurableObject context?

If not, what is the right way to run e2e testing locally for workers that trigger workflows that have steps with DurableObject communications?

Fflof.fly Can i use introspectWorkflow testing inside a runInDurableObject context? If no...

Seekerdasbatatas•9/17/25, 6:46 PM

introspectWorkflow

introspectWorkflow

should be done at the start of the test (you can think of doing

introspectWorkflow

introspectWorkflow

where you mock other APIs and so on) - intercepted workflows with DOs should just work (if you want to mock/intercept the calls between the two, let me know)

flof.fly•9/18/25, 7:55 PM

Why workflows have such a big wall time? what could the reason be? Is this walletime expected?
Is it related to retries?

in my workflow i have one step that is expected to fail and go errored status, maybe that's the issue there?

Here's my workflow step configs:

const defaultConfig: WorkflowStepConfig = {
    retries: {
        limit: 0,
        delay: 0,
        backoff: 'constant',
    },
    timeout: '3 minutes',
}

const defaultConfig: WorkflowStepConfig = {
    retries: {
        limit: 0,
        delay: 0,
        backoff: 'constant',
    },
    timeout: '3 minutes',
}

TheJudas•9/18/25, 7:57 PM

Thinking of doing some video processing using workflows is it possible to run ffmpeg there?

TTheJudas Thinking of doing some video processing using workflows is it possible to run ff...

full_moon_flowers•9/18/25, 9:18 PM

I don't think Workflows (Workers) supports ffmpeg natively, but IIUC you could run ffmpeg from a Container as part of a workflow

TTheJudas Thinking of doing some video processing using workflows is it possible to run ff...

Shivek•9/19/25, 6:06 PM

Container, or just call a 3rd party server running ffmpeg.

Isak•9/20/25, 1:31 PM

Can you actually see the console.logs anywhere?

jordanfinners•9/20/25, 9:53 PM

I'm using wait for event in a for loop to trigger nested workflow. I see the error where the parent hasn't waited for the event on longer running workflows. Is it because I'm doing this outside of a step?

Murder Chicken•9/21/25, 2:22 PM

When workflows are triggered via cron vs. manually triggering them from the dashboard, is there any context difference? All of a sudden, I'm seeing workflows failing they are on steps that proxy requests through another worker but if I manually trigger the workflow, it completes just fine. Trying to understand what could be different between a cron triggered workflow and one triggered through the dashboard.

Murder Chicken•9/21/25, 4:43 PM

Okay, looks like I understand what's going on, when you trigger the workflow it seems to initiate the worker near your geographic location. When done through

cron

cron

it seems to do it from other geographic locations. I have a security rule to block all traffic to the worker that's not from the United States and it seems that, as of recently, my cron-scheduled workflows are being instantiated outside of the United States in Poland or Singapore which is causing them to be blocked by the security rules.

Is there a way to force location of execution of workflows or whitelist / exempt same account workers from security rules?

ajay | dreamlit.ai•9/21/25, 7:10 PM

We are seeing a handful of workflows occasionally be stuck in QUEUED. They never get out of this state. We have to manually restart them. Hasn't been an issue until about a week ago, now seeing this happen sporadically when we start workflows. Any idea what might be up?

orangesbracelet•9/24/25, 9:56 PM

hi guys, I wonder which way should we prefer,

Defining if and else blocks and inside if and else calling different steps
Creating just one step and defining if and elses inside step and calling functions inside if elses

do you have any idea

Oorangesbracelet hi guys, I wonder which way should we prefer, 1. Defining if and else blocks a...

avenceslau•9/25/25, 9:22 AM

As long as the expression on the if is deterministic you can do either.

Sscook I'm getting the following error for my workflows that have a sleep step for a lo...

orangesbracelet•9/25/25, 11:36 AM

is there anyone still get this error, we get too

bert•9/25/25, 11:57 AM

Hey

I deployed a new version of my workflow and I'm now running into

WorkflowInternalError: Attempt failed due to internal workflows error

WorkflowInternalError: Attempt failed due to internal workflows error

errors - at any step (even those that weren't affected by my latest deploy).

Run ID:

6b8af9a0-7ba7-4f2a-ade4-31500c2b2cfb

6b8af9a0-7ba7-4f2a-ade4-31500c2b2cfb

0ecea869-a90e-416f-a882-2a84f45d7f13

0ecea869-a90e-416f-a882-2a84f45d7f13

, or

5ba45a09-a860-4f7c-8097-197b67dbfbf0

5ba45a09-a860-4f7c-8097-197b67dbfbf0

.

Any idea what's going on?

面

面条•9/25/25, 12:16 PM

Starting from 09.23, my scheduled task triggered twice.

Ashish Rawat•9/25/25, 1:49 PM

Does anyone know how to make workflows work with opennext. In dev mode, I tried with both

wrangler dev

wrangler dev

next dev

next dev

but getting error

orangesbracelet•9/25/25, 6:40 PM

Is there anyone faces invalid instance id problem, in cloudflare docs I didnt see any rule about this

.r20•9/28/25, 4:03 AM

~~is there any way to view logs in a workflow?~~

~~never mind its in worker logs~~

CWhy•9/29/25, 6:20 AM

hi I also got "Attempt failed due to internal workflows error" for my workflow for instance 3f151892-90a4-446b-ad4a-394d3e44c110 and 8f204f7e-2032-446f-acee-fee00197b48b. anyway to debug this?

Yuan•9/29/25, 10:42 AM

Hi, i am implementing a feature that requires doing file conversion, and the file can be > 30mb. a single worker definetely can't handle it. haven't thought everything through, but in general i think the entire process can be divided into multiple steps (e.g. read, convert, store ...) is workflow a good solution for this kind of use case? otherwise can i have some suggestion. thanks

.r20•9/29/25, 3:32 PM

Is there any way to debug workflows?

.r20•9/29/25, 3:33 PM

it seems like onl;y the invocation islogged in workers logs

ByteBeast•9/30/25, 5:54 AM

Hello everyone, I want to know how much time duration workflow can stay running? like if I set 5 delay for one year will it stay up for 5 years?

BByteBeast Hello everyone, I want to know how much time duration workflow can stay running?...

avenceslau•9/30/25, 1:50 PM

It depends on what you mean by stay up. If you do 5 one year sleeps your workflow instance will "hibernate" for one year 5 times, yielding concurrency to other instances while it sleeps. It will awaken after every year and go back to sleep. The workflow does not use compute while it sleeps.

Frank•9/30/25, 5:31 PM

currently using a DO for threadlock so only 1 workflow is triggered per user. is there a better way?

.r20•9/30/25, 6:46 PM

why not use d1?

.r20•9/30/25, 6:47 PM

that way you dont deal with the costs associated by provisioning a DO

.r20•9/30/25, 6:48 PM

just keep some minimal d1 table

Frank•9/30/25, 6:48 PM

there are additinoal costs vs. D1?

Frank•9/30/25, 6:48 PM

i was not aware of that

.r20•9/30/25, 6:48 PM

so with DO u are billed by work so GB/s

Frank•9/30/25, 6:48 PM

ah. got it

.r20•9/30/25, 6:49 PM

and theres a cost associated just for provisioning a DO since it takes x amount of work to provision

.r20•9/30/25, 6:49 PM

i believe

.r20•9/30/25, 6:49 PM

and also ur billed for wall time keep that in mind

FFrank there are additinoal costs vs. D1?

.r20•9/30/25, 6:50 PM

as for the d1 stuff ur just charged for rows read and written which is way cheaper and simpler for ur use case

Frank•9/30/25, 7:00 PM

@.r20 good pts. was going to test using DO sqlite to store user data and implement FTS5 for search

Frank•9/30/25, 7:00 PM

that seems expensive now that I realized wall time is charged

.r20•9/30/25, 7:00 PM

yeah

.r20•9/30/25, 7:01 PM

thats why i dont use it. if there isnt a true need for it i might as well save

Nathan Scheele•10/1/25, 6:13 PM

Has anyone encountered Workflows failing with the following error:

(instance.in_finite_state) Instance reached a finite state, cannot send events to it

(instance.in_finite_state) Instance reached a finite state, cannot send events to it

orangesbracelet•10/1/25, 6:23 PM

in workflow step if we want to return not just from step also from workflow successfully what can we do, do you have any idea ? I mean is there any equivalent form of non retryable error

adam•10/2/25, 3:41 AM

is it an antipattern to use workflows to manage many timers in order to get around durable object alarm limitations

stephen•10/3/25, 7:52 AM

Within a Workflow, can you run a Workflow Step in parallel?

For example: The AI SDK allows parallel execution of a step: https://developers.cloudflare.com/workflows/build/workers-api/#call-workflows-from-workers

And so does Mastra: https://mastra.ai/en/docs/workflows/control-flow#simultaneous-steps-with-parallel

It's not clear if Workflows have this feature.

Cloudflare Docs

Workers API

This guide details the Workflows API within Cloudflare Workers, including methods, types, and usage examples.

Branching, Merging, Conditions | Workflows | Mastra Docs

Control flow in Mastra workflows allows you to manage branching, merging, and conditions to construct workflows that meet your logic requirements.

daisy•10/3/25, 5:53 PM

Do you guys recommend migrating towards workflows from queues to improve latency?

Gabriel Francisco•10/3/25, 9:13 PM

hey, do workflows waitForEvent also have the maximum duration/timeout of 1 year?

Hello, Getting unhelpful error messages from Cloudflare Workflows. The logs only show generic "run"

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