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Hi author, could you please share more details about the UUID collision, how it occurred in micro service etc..

Here is one of the X posts I was referencing: https://x.com/initjean/status/2054281688801321457?s=20

Basically in theory you could generate 1M UUIDs per second and never have a collision for the life of the universe. But in practice due to bad entropy some collisions have been seen in practice. I made the service in part as a joke off of this discussion, but also in case anyone may actually want to use it, it will dutifully provide the advertised function.

And please also share why not just use e.g. 256-bit UUIDs instead of v4 128-bit if collisions really are a problem with 128-bit (which i find hard to belive).

I think for the same reasons that 128bit ones can collide, any amount of bits could. I don't have a perfect understanding of the math involved so I could be wrong.

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