I haven't had to use the Strangler technique, but I think I would disagree with this post. It is possible to use ALBs in this way, but I think it goes against the point a little. I thought the point was that it should be a little bit annoying to maintain all of the pass-through routes in the replacement codebase, to ensure that there is motivation to actually do the replacement, instead of just leaving it in place indefinitely.
Plus, leaving the pass-through in the codebase lets you do a much wider variety of things. You could run both the original and your replacement, and check the responses against each other. You could do that, or do replacements, at however tiny of a part you can imagine. You could choose which cases to handle where according to any algorithm you can dream up.
Plus, leaving the pass-through in the codebase lets you do a much wider variety of things. You could run both the original and your replacement, and check the responses against each other. You could do that, or do replacements, at however tiny of a part you can imagine. You could choose which cases to handle where according to any algorithm you can dream up.