HIt remains part of the DurableObjectState interface to remain compatible with Workers Runtime APIs.
HIIRC because many things built for Workers expect to exist
LYour DO will stay active after the last request up to 1-2 minutes if you have some scheduled, otherwise it will be evicted after 10 seconds.
If you want to keep it running for longer you can schedule an alarm to run every few seconds doing nothing other than checking if your long running tasks are done and rescheduling itself if not yet. Alarms count as normal requests so they reset the timer for eviction.
If you want to keep it running for longer you can schedule an alarm to run every few seconds doing nothing other than checking if your long running tasks are done and rescheduling itself if not yet. Alarms count as normal requests so they reset the timer for eviction.
Awhat about a pending promise?
SHow do you export a DurableObject in a Next.js app using OpenNext on Workers?
LIf you refer to websocket hibernation, then no, you do not pay for duration once the DO is hibernated.
Note that if you use your DO will NOT hibernate regardles if you are using websocket hibernation, hence you will be charged for duration in that case.
Note that if you use your DO will NOT hibernate regardles if you are using websocket hibernation, hence you will be charged for duration in that case.
Tare there any disturbances with durable objects? One of objects started throwing errors when opening websockets at 18:30 UTC and it still continues. Other instances work fine. All calls to open a websocket end in a error with some internal code, for example:
JSomehow DO alarms get called everytime i refresh the static page
MHmm, are you maybe setting the alarm to run in the constructor? Alternatively, are you calling the
alarm()Not natively, though you should be able to dump the SQL manually
PI must admit I am still amazed this is not the #1 priority and next feature for DO (I mean native backup/restore procedures through a R2 integration or else).
GGotherwise you could have it write to d1 and use d1s dump feature
AI get DO's that get stuck in an loop. https://screen.bouma.link/r7vljp4v2bMkNb5vJjlT
This has been reported long time ago and marked as resolved but it doesn't look resolved for me: https://github.com/cloudflare/workerd/issues/2993#issuecomment-2801468494
I have tried emptying the handler and wrapping all it's code in a try/catch. But I don't think I am going to get to the bottom of this without some help
This has been reported long time ago and marked as resolved but it doesn't look resolved for me: https://github.com/cloudflare/workerd/issues/2993#issuecomment-2801468494
I have tried emptying the handler and wrapping all it's code in a try/catch. But I don't think I am going to get to the bottom of this without some help
Smy assumption is still that the outerbase people are cooking something cool in regards of DO storage
SIs this just impossible?
AIs this still an issue that's somehow hidden now? I don't have Smart placement turned on (it's on "default") but I am still getting this error when I should not be. https://community.cloudflare.com/t/smart-placement-breaks-durable-object-rpc/654797
Snot impossible but not recommended anyway workers-and-pages-discussions
Sbut it would require you to change the built code
SThanks! Makes sense.
FHi
In WSL open devtools does not pop up anything, other commands work fine.
Did anyone run into this?
In WSL open devtools does not pop up anything, other commands work fine.
Did anyone run into this?
GI use Durable Objects in remix and I made it so there is a backend worker handling the Durable Object for each customer (they get a unique instance each), and the remix app uses RPC to interface with the worker
SGdispose the stub?
S
GI don't explicitly manage it because the durable object runs on alarms until it completes the queued work
Ggenerally it could be as few as one task to tens of thousands, and remix is not designed for managing that nor would it really make sense given the context
Swell its still good practice and sadly dosent really work in that environment
Glikely, but we only use the RPC to initiate the worker so we end the context very quickly and the documentation says that automatically disposes of it
Gdoing it cleanly is always ideal, but using remix with bindings wasn't super well documentated from what I could find
GI'd love if cloudflare had official demos for these platforms with remix next js etc, showing basic things like database bindings, r2 access etc
FHey all! Do you know of any observability service that could show spans across a worker and a DO? I know baselime used to be the best option in past but idk what the latest is on that since acquisition.
AI have not tried it but I do know Sentry recently released DO support which looks like it supports connected traces: https://github.com/getsentry/sentry-javascript/pull/16180
FThis is coool!
CI'm using Vercel's AI SDK, specifically the streamText function along with createDataStreamResponse, to send custom streaming data. I'd like to integrate this with a Cloudflare WebSocket setup using Durable Objects. What would be the best approach to achieve this integration?
CHi all, whenever I try to write to Durable Object I have in live preview of the logs:
"executionModel": "durableObject", "outcome": "canceled",
CIs there any way to get the information why?
EHey,
I believe I've found a prod vs local discrepancy with Durable Objects - where would I go about reporting this?
I believe I've found a prod vs local discrepancy with Durable Objects - where would I go about reporting this?
LCreate a github issue in the wrangler repo if by local you mean
wranglerThanks - well actually things work as expected locally, just not in prod
LDescribe the issue here, then. Without knowing what the discrepancy is I can't help.
EOk so it does trigger in production 
I think some code is erroring but I've no idea where logs are if an alarm throws an error
I think some code is erroring but I've no idea where logs are if an alarm throws an errorLYou can enable Observability logs for your worker project and you will be able to see your logs in the cloudflare dashboard. https://developers.cloudflare.com/workers/observability/logs/workers-logs/#enable-workers-logs
EHmm, I do have that enabled, but I've just seen what's happening:
- I have an endpoint setup which I am calling which accesses the DO (to logs the alarm)
- If I don't call this endpoint, the alarm doesn't trigger
- If I then call the endpoint, the alarm triggers - so accessing the DO seems to kick it off
EAnd I can see the RPC call which kicks it off includes the logs of the alarm call
ME@lambrospetrou @Milan
Ok so finally figured it out, I think:
My alarm calls a function which is outside of the class (import function) which does an external async fetch call.
If that function thows an error (e.g. ) then the alarm just dies and no logs appear in console (hence me thinking it wasn't being triggered)
If I catch the error inline within the alarm and return early, the alarm logs show up
So my issue was that I didn't think the alarm was being triggered because the alarm swallowed the errors/logs
Ok so finally figured it out, I think:
My alarm calls a function which is outside of the class (import function) which does an external async fetch call.
If that function thows an error (e.g. ) then the alarm just dies and no logs appear in console (hence me thinking it wasn't being triggered)
If I catch the error inline within the alarm and return early, the alarm logs show up
So my issue was that I didn't think the alarm was being triggered because the alarm swallowed the errors/logs