In Search of a Compositional Theory of Self-Stabilization 0 ▲ Metadata 54 days ago · 10 min read2094 words · Tech · hide · Fediverse post My literature search for recent work on composing self-stabilizing systems didn't yield anything useful. The layered stabilization idea was already in place by the early 2000s, and nothing fundamental seems to have been added since. Frustrating.So I decided to attack the problem using the concrete example I have. I had composed a rely-guarantee TLA+ model of a retry storm as two components with contracts. That model reproduces metastable failure because the composition that workded from good states failed to work when a large shock removes the base case that let the two conditions hold each other up.Searching for rely-guarantee based composition from every state, turned up a 2017 control theory paper by Kim, Arcak and Seshia, "A Small Gain Theorem for Parametric Assume-Guarantee Contracts". This paper does roughly what I want: discharging circular reasoning between two components without layering or blocking. But it comes with some serious limitations. In their formalism, a component… Commenting on Bubbles has been removed. Why? If you want to talk about this post, write to the author, use the comments on their blog if it has them, or reply with a "RE:" post on your own blog. Suggestions? feedback@bubbles.town