Conflict Resolution for Eventual Consistency • Martin Kleppmann • GOTO 2016

What people said

lewisl9029 · 2019-05 · Strong recommendation

> Indeed, the literature of CRDT does specify a mathematically correct answer. But this does not always line up with what humans would find the most faithful rendering of intent. This is a very salient point that anyone thinking of using CRDTs to "solve" synchronization in an user-facing application needs to take into consideration. Yes, CRDTs will guarantee that clients converge to an identical, mathematically "consistent" state eventually, but there's no guarantee whether or not that mathematically "consistent" state would make any sense to the application business logic that needs to consume that state, or to the human that needs to reason about the rendered result. That is a completely different can of worms that we'll still have to tackle to build a usable application. Here's great example to illustrate this from Martin Kleppmann's talk on this topic: [VIDEO] Rest of the talk is also highly recommended for anyone interested in an approachable primer on CRDTs. The trade-offs to CRDTs mentioned by the author in the context of text-editors make sense, but I would be curious to hear from the Xray team on what their current thinking on the topic is, given that they have collaborative editing as an explicit core objective (which might shift the value prop in favor of using CRDTs relatively speaking since in Xi it seems to be only an aspirational goal), and that their approach to implementation was similar but not quite identical to Xi's: > Our use of a CRDT is similar to the X

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lachenmayer · 2019-03 · Strong recommendation

CRDTs are quite actively discussed in the IPFS community, in particular here: [LINK] (lots of great resources if you're interested in CRDTs) Also check out automerge, a CRDT that aims to be as JSON-like as possible: [LINK] Martin Kleppmann (one of the creators of Automerge) has given several great in-depth talks about it, eg. [VIDEO]

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marknadal · 2019-03 · Strong recommendation

CRDTs are great, and I've seen a lot of quality in Christopher's work. A few other resources for those interested in CRDT subject: - Our cartoon explainer [LINK] - An excellent talk by Martin Kleppmann [VIDEO] - Marc Shapiro's in depth talk [LINK]

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