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Zero-latency SQLite storage in every Durable Object

(simonwillison.net)
285 points ajhit406 | 1 comments | 13 Oct 24 23:07 UTC | HN request time: 0s | source
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simonw ◴[13 Oct 24 23:55 UTC] No.41832812[source]▶
One thing I don't understand about Durable Objects yet is where they are physically located.

Are they located in the region that hosted the API call that caused them to be created in the first place?

If so, is there a mechanism by which a DO can be automatically migrated to another location if it turns out that e.g. they were created in North America but actually all of the subsequent read/write traffic to them comes from Australia?

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masterj ◴[14 Oct 24 00:03 UTC] No.41832862[source]▶
> Durable Objects do not currently change locations after they are created

> Dynamic relocation of existing Durable Objects is planned for the future.

https://developers.cloudflare.com/durable-objects/reference/....

IIRC Orleans (https://www.microsoft.com/en-us/research/wp-content/uploads/...) allows actors to be moved between machines, which should map well to DOs being moved between locations.

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1. pests ◴[14 Oct 24 06:59 UTC] No.41834934[source]▶
As actors in Orleans are virtual and persistent it can also be the case it is running nowhere.

If it's stateless it could be running in multiple locations.

I worry "Dynamic relocation of DOs" might be going a bit too granular, this should be something the runtime takes care of.