2 ms·

> I'm pretty sure the scenario above is looking at committed writes. > If you're reading uncommitted writes, you're not really in the market for consistency to

by lmm 2y ago

> I'm pretty sure the scenario above is looking at committed writes. > If you're reading uncommitted writes, you're not really in the market for consistency to being with. But what does "committed" mean when you're only reading from one partition in a partitioned scenario? You literally can't tell whether what you're reading is committed or not (or rather, you have to build your own protocol for when a write is considered committed). > For pure read operations, I'm not convinced it's a proper stale read unless the value was stale before the read operation started. I think you can get a read that is half from a prior stale operation and half from a subsequent uncommitted operation, or something on those lines.

Dylan16807 2y ago
> But what does "committed" mean when you're only reading from one partition in a partitioned scenario? I would say you can't make new commits in that situation? I don't know, I didn't make up the scenario, I think you need to figure out your own answer and/or get clarification from fallingsquirrel if you want to talk about that kind of problem. > I think you can get a read that is half from a prior stale operation and half from a subsequent uncommitted operation, or something on those lines. What's the full timeline for that? If you're specifically talking about the ABA problem, that's trivial to fix with a generation counter.
- lmm 2y ago
  > I think you need to figure out your own answer and/or get clarification from fallingsquirrel if you want to talk about that kind of problem. Right. The point is that fallingsquirrel hasn't solved the hard part of the problem. > If you're specifically talking about the ABA problem, that's trivial to fix with a generation counter. Maybe, but you need to specify that that's what you're doing, and it may come with undesirable consequences.
  - Dylan16807 2y ago
    > The point is that fallingsquirrel hasn't solved the hard part of the problem. Sure. My point is that I don't see any issue with the read they described, not that I think there is a solution to partitioning here.

by lmm 2y ago

Dylan16807 2y ago

> But what does "committed" mean when you're only reading from one partition in a partitioned scenario? I would say you can't make new commits in that situation? I don't know, I didn't make up the scenario, I think you need to figure out your own answer and/or get clarification from fallingsquirrel if you want to talk about that kind of problem. > I think you can get a read that is half from a prior stale operation and half from a subsequent uncommitted operation, or something on those lines. What's the full timeline for that? If you're specifically talking about the ABA problem, that's trivial to fix with a generation counter.

lmm 2y ago
> I think you need to figure out your own answer and/or get clarification from fallingsquirrel if you want to talk about that kind of problem. Right. The point is that fallingsquirrel hasn't solved the hard part of the problem. > If you're specifically talking about the ABA problem, that's trivial to fix with a generation counter. Maybe, but you need to specify that that's what you're doing, and it may come with undesirable consequences.
- Dylan16807 2y ago
  > The point is that fallingsquirrel hasn't solved the hard part of the problem. Sure. My point is that I don't see any issue with the read they described, not that I think there is a solution to partitioning here.