The Strangler Pattern Still Needs an Exit Plan

Fri, 01 Nov 2019 00:00:00 +0000

A replacement proof of concept imported one provider’s postal data into PostgreSQL and served one existing JSON-RPC search method from a Go binary. A checked-in request and response fixture preserved field names, nulls, empty strings, ordering, and identifier shape. Import failure left the last committed dataset intact.

The slice deliberately excluded every other provider, the other RPC methods, queues, schedulers, authentication, caching, operational interfaces, and traffic cutover.

That is a good proof of one vertical path. It is not a plan for retiring the system around it.

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The Strangler Pattern Still Needs an Exit Plan