18 replies

hello here. I have a weird behavior,

hello here. I have a weird behavior, sometimes, my worker that talks to a durable object, does not reach the durable object but the worker itself.

    const response = await stub.fetch('https://durable-object/something')
    return await handleResponse(response)

    const response = await stub.fetch('https://durable-object/something')
    return await handleResponse(response)

    const response = await stub.fetch('https://durable-object/something')
    return await handleResponse(response)

    const response = await stub.fetch('https://durable-object/something')
    return await handleResponse(response)

I could clearly debug that sometimes, the response that I get is not returned by the Durable Object but by the worker itself.
Any clue?

Sébastien MorelOP•7/23/24, 12:32 PM

I can now debug it and prove it

Sébastien MorelOP•7/23/24, 1:02 PM

it seems to happen when I enable the Log via the UI. I know it seems crazy but I can show and prove it someone is available for that

Milan•7/23/24, 2:03 PM

I'm guessing you mean you don't get a response from the DO, but rather it's generated by the Worker instead?

You can wrap your request in a try...catchtry...catch and read the .remote.remote property off the exception to see if the error is coming from the DO application code or from the Workers Runtime itself.

Milan•7/23/24, 2:03 PM

https://developers.cloudflare.com/durable-objects/best-practices/error-handling/#how-exceptions-are-thrown

Cloudflare Docs

Error handling · Cloudflare Durable Objects docs

Review how to handle errors (exceptions) generated by both your own Durable Object code as well as exceptions thrown by Durable Objects’ …

Sébastien MorelOP•7/23/24, 2:49 PM

hey @milan thanks! I will have a look, but I don't have exception though

Original message was deleted

Sébastien MorelOP•7/23/24, 2:50 PM

here it's pretty obvious for me when I attach logs, I can see my api not working, because suddenly the durable object is not reached

Sébastien MorelOP•7/23/24, 2:52 PM

my worker tries to reach the /something/something of the durable object. When I attach a log (but at first I thought it was random) then my worker does not reach the durable object but the /something/something of my worker. There is no exception in the DO, not in the worker

Sébastien MorelOP•7/23/24, 3:43 PM

nop I don't think that's normal, I do think I don't have errors when I don't start the logs though. but that's odd why would my worker hit itself when I attach wanna see the log???

Milan•7/23/24, 6:05 PM

What do you mean by "attach a log"? Do you mean you're doing console.log("some message");console.log("some message");?

Milan•7/23/24, 6:07 PM

I'm also not sure what you mean by "why is the working hitting itself". If you're creating a Durable Object stub, and then calling a method on it, then it you're certainly sending a request to the DO, not the worker.

It's possible the request doesn't reach the DO, in which case you'll get an exception instead of a

Response

Response

from

fetch()

fetch()

Sébastien MorelOP•7/24/24, 7:12 AM

hello @milan I can assure you that I don't hit the DO, the worker gets a HTTP response from itself (home page of the worker in this case) instead of getting a response from the DO.. like a routing issue of some sort.
It seems to happen when I "begin a log stream" from the UI.

Sébastien MorelOP•7/24/24, 7:16 AM

then it you're certainly sending a request to the DO, not the worker.

that's my issue it does not happen this way, and that's really really weird

Sébastien MorelOP•7/24/24, 7:37 AM

Could do a video to show

Sébastien MorelOP•7/24/24, 9:05 AM

ok thanks to @Hard@Work I have a video and more debug/log/trace to show you that enable the Log Stream changes the routing....

Sébastien MorelOP•7/24/24, 9:05 AM

so sure I should share the video here

Milan•7/24/24, 12:34 PM

Definitely share it, I'm not familiar with log stream but if requests aren't reaching a Durable Object when it's enabled that sounds very broken.

Milan•7/24/24, 12:35 PM

What are the steps to reproduce here? Could you share a script and a step by step reproduction? Will help us address any issues much quicker!

Sébastien MorelOP•7/24/24, 3:04 PM

Just shared the video to you, and can do a Meet or something to show you, I have a staging and can trigger this on purpose now. there is a bug somewhere

Sébastien MorelOP•8/5/24, 6:10 PM

btw here, the bug (there was a bug in CF) is fixed !

hello here. I have a weird behavior,

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