Re:Evan Wallace CRDT Algorithms
by maxmcd on Sunday November 27, 2022 @07:27PM
(#33768462)
If you’re working on CRDT stuff in production (or possibly in production) do you have thoughts on the CRDT vs OT debate? I would expect Notion to use operational transform given the availability of reliable central servers. But I know quite little! Interested in your thoughts.
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Re:Evan Wallace CRDT Algorithms
by ChadNauseam on Sunday November 27, 2022 @09:50PM
(#33769299)
I’m not the GP, but OT is pretty annoying to implement. There are so many cases that it’s quite difficult to formally prove an OT correct. On the other hand, a large subset of CRDTs can be implemented in Datalog and if you do that you can’t possibly end up with an invalid CRDT.
From wikipedia:
> Similarly, Joseph Gentle who is a former Google Wave engineer and an author of the Share.JS library wrote, "Unfortunately, implementing OT sucks. There's a million algorithms with different tradeoffs, mostly trapped in academic papers. […] Wave took 2 years to write and if we rewrote it today, it would take almost as long to write a second time." But later he amends his comment with "I no longer believe that wave would take 2 years to implement now - mostly because of advances in web frameworks and web browsers."