3 ms·
Is it the same consistency model as S3? I couldn't see anything about it in their docs.
by apawloski 9mo ago
Is it the same consistency model as S3? I couldn't see anything about it in their docs.
- lxpz 9mo agoRead-after-write consistency : yes (after PutObject has finished, the object will be immediately visible in all subsequent requests, including GetObject and ListObjects) Conditionnal writes : no, we can't do it with CRDTs, which are the core of Garage's design.
- skrtskrt 9mo agoDoes RAMP or CURE offer any possibility of conditional writes with CRDTs? I have had these papers on my list to read for months, specifically wondering if it could be applied to Garage https://dd.thekkedam.org/assets/documents/publications/Report/RR-8858.pdf https://dd.thekkedam.org/assets/documents/publications/Repor... http://www.bailis.org/papers/ramp-sigmod2014.pdf http://www.bailis.org/papers/ramp-sigmod2014.pdf
- lxpz 9mo agoI had a very rapid look at these two papers, it looks like none of them allow the implementation of compare-and-swap, which is required for if-match / if-none-match support. They have a weaker definition of a "transaction". Which is to be expected as they only implement causal consistency at best and not consensus, whereas consensus is required for compare-and-swap.
- skrtskrt 9mo agoack - makes sense, thank you for looking!