I appreciate the clear explanation of the problem and the solution, which (as is so often the case) seems fairly simple or obvious in retrospect. Semi-related

I appreciate the clear explanation of the problem and the solution, which (as is so often the case) seems fairly simple or obvious in retrospect. Semi-related tangent: sometime around mid-2016, I came across a tool that helped visualize requests in near real-time, and showed what it "looks" like (ie, flow slows to trickle in service A during draining, while it ramps up in service B)... there was a really compelling demo, but I never bookmarked it and can't seem to find it. IIRC its name was a single word. Maybe someone reading this will know what I'm talking about... ?