Where database blog posts get flame-broiled to perfection
Another Tuesday, another vendor whitepaper promising to solve a problem I didnāt know we had by selling us a solution that creates three new ones. This one is a masterclass in creative problem-solving, where the āproblemā is a fundamental database feature and the āsolutionā is a Rube Goldberg machine powered by our Q3 budget. Letās break down this proposal with the enthusiasm it deserves.
Iām fascinated by this bold strategy of calling a standard industry featureāthe ājoināāan anti-pattern. Itās like a car salesman telling you steering wheels are an anti-pattern for driving, and what you really need is their proprietary, subscription-based "Directional Guidance Service." Theyāve identified a core weakness and rebranded it as a ādeliberate design choice.ā Itās a choice, all right. A choice to sell us a more complex, expensive service to replicate functionality thatās been free in other databases since the dawn of time.
Letās do some quick, back-of-the-napkin math on their claim of āmore economical deployments.ā So, instead of one database doing a simple query, we now need:
- Our primary operational database.
- A second database (or "collection") holding all the duplicated, "materialized" data. That's double the storage cost, at a minimum.
- A brand-new, always-on āAtlas Stream Processingā service to constantly shuttle data between the two.
They say weāre trading expensive CPU for cheap storage, but they forgot to mention weāre also paying for an entirely new compute service and a team of six-figure engineers to babysit this "elegant architecture." My calculator tells me this "favorable economic trade-off" will cost us roughly $750k in the first year alone, factoring in the service costs, extra storage, mandated training, and the inevitable "CQRS implementation consultant" weāll have to hire when this glorious pattern grinds our invoicing system to a halt.
This entire pitch for "real-time, query-optimized collections" is the most beautifully wrapped vendor lock-in Iāve ever seen. They casually mention using MongoDB Atlas Stream Processing, native Change Streams, and the special $merge stage. How lovely. It's a completely proprietary toolchain disguised as a universal software design pattern. Migrating away from this "solution" wouldn't be a project; it would be an archeological dig. Weād be building our entire business logic around a system that only they provide and only they can support, at a price they can change on a whim. āItās a modern way to apply the core principles of MongoDB,ā they say. Iām sure it is.
The proposed solution to the āmicroservice problemā is particularly inspired. Instead of services making simple database calls across a network, they suggest we implement an entire event-driven messaging system between them, complete with publishers, streams, and consumers, all just to share a customerās shipping address. This isnāt a solution; itās an invitation to triple our infrastructure complexity and introduce a dozen new points of failure. Theyāve taken a straightforward requestāāget me this related dataāāand turned it into a philosophical debate on eventual consistency that will keep our architects busy, and our burn rate high, for the next 18 months.
My favorite part is the promise of āblazing-fast queries.ā Of course the queries are fast. Weāre pre-calculating every possible answer and storing it ahead of time! Itās like bragging about your commute time when you sleep in the office. The performance isnāt coming from some magical technology; it's coming from throwing immense amounts of storage and preprocessing at the problem. They claim this will reduce the load on our primary database. Sure, but it shifts that load, plus interest, onto this new streaming apparatus and a storage bill that will grow faster than our marketing budget.
Honestly, at this point, a set of indexed filing cabinets and a well-rested intern seems like a more predictable and cost-effective data strategy.