root@pierrezemb.fr:~/blog$ ./read --quorum posts
✓ quorum 2/3 · 52 documents · committed
2026-06-09
Designing Fakes That Prove CorrectnessYou fake the handful of methods your code actually calls, prove the fake stays honest, and then make it fail the way production does.
#testing #simulation #distributed-systems #software-engineering #rust
2026-05-05
BugBash 2026, or how the correctness decade has startedA retrospective on BugBash 2026, and why software engineering looks brighter than ever.
#software-engineering #testing #simulation #correctness #llm
2026-03-26
Why Fakes Beat Mocks and TestcontainersTrait-based fakes test partial failures that mocks and Testcontainers fundamentally cannot simulate. They are also the on-ramp to simulation-driven development.
#testing #simulation #distributed-systems
2026-03-23
Diving Into Coverage-Guided FuzzingHow a 600-line Rust fuzzer discovers a 3-byte crash sequence in 9,000 iterations instead of 16 million
#rust #fuzzing #testing #simulation #diving-into
2026-02-25
Building Index-Backed Query Plans in DataFusionWhat I learned about manually constructing physical query plans for secondary index queries, and the library that came out of it.
#rust #datafusion #sql #query-engine #databases #distributed-systems
2026-02-05
Simulating Leader Election on top of FoundationDBCan LLM-generated code be trusted for distributed systems? Only if you have the right feedback loop.
#foundationdb #rust #simulation #distributed-systems #consensus #leader-election
2026-01-30
FoundationDB's Transaction Model for Layer EngineersHow optimistic concurrency control works in FoundationDB, and how to design data structures that stop fighting it
#foundationdb #distributed-systems #database #transactions
2026-01-15
What I Tell Colleagues About Using LLMs for EngineeringLLMs amplify expertise, they don't replace it. Here's what works: planning, context, feedback loops, and building systems that let AI discover bugs.
#llm #software-engineering #rust #testing
2025-12-26
2025: A Year in ReviewReflections on returning to engineering, discovering simulation as a superpower, learning to work with LLMs, and the compounding value of years of distributed systems work.
#personal
2025-12-19
Specs Are Back, But We're Missing the ToolsLLMs revived specifications. Model checkers like Fizzbee work for algorithms. But for APIs and business logic? The tooling doesn't exist yet.
#software-engineering #llm #specifications #formal-methods #model-checking #fizzbee
2025-12-09
Designing Rust FDB Workloads That Actually Find BugsPatterns and principles for writing Rust simulation workloads that catch bugs before production does.
#foundationdb #rust #testing #simulation #deterministic #distributed-systems
2025-11-12
Diving into Kubernetes' Watch CacheUnderstanding how Kubernetes apiserver caches etcd, the 3-second timeout, and K8s 1.34 consistent read feature
#diving-into #kubernetes #distributed-systems #etcd #caching
2025-10-30
Diving into FoundationDB's Simulation FrameworkHow FoundationDB achieves legendary reliability through deterministic simulation, interface swapping, and one trillion CPU-hours of testing
#foundationdb #testing #simulation #deterministic #distributed-systems #diving-into
2025-10-02
From Arc to Box: One Deref Bound to Rule Them AllHow Rust's Deref trait solved a complex API design problem in FoundationDB-rs without traits or enums
#rust #foundationdb #programming #metaprogramming
2025-09-24
A Practical Guide to Application Metrics: Where to Put Your InstrumentationA comprehensive guide on where and how to instrument metrics in your applications, covering everything from API endpoints to background jobs
#observability #metrics #monitoring #distributed-systems
2025-09-08
Testing: prevention vs discoveryMost testing prevents old bugs from returning. But what if we built systems where LLMs could actively discover new bugs instead?
#testing #simulation #deterministic #llm #foundationdb
2025-08-18
Shipped vs. Operated, or How Many Bash Scripts Does It Take?The difference between shipped and operated software is the difference between something you can run and forget, and something that demands ongoing, hands-on care. Choosing the former protects your team’s focus and sanity.
#distributed-systems #operation
2025-08-11
Two Podcast Episodes on Topics Developers Rarely Talk AboutTwo podcast episodes—one from Oxide and one from Antithesis—on debugging at the limits and building correctness into systems from day one.
#distributed-systems #debugging #correctness #podcasts #simulation
2025-07-02
Three Years of Nix and NixOS: The Good, the Bad, and the UglyA review of Nix/NixOS after using it on all my machines for three years. I'll cover what works, what doesn't, and why it's the first OS that's stuck with me.
#nixos #nix #linux #devops
2025-06-04
Thank You, DataFusion: Queries in Rust, Without the Pain
#rust #datafusion #sql #query-engine #databases
2025-06-03
Bypassing FoundationDB's Transaction Limits with Record Layer ContinuationsA technical deep-dive into FoundationDB Record Layer continuations, explaining how they enable long-running operations by segmenting work across multiple FDB transactions, effectively bypassing the inherent 5-second and 10MB limits.
#foundationdb #record-layer #java #database #continuation #pagination #distributed-systems
2025-05-18
Unlocking Tokio's Hidden Gems: Determinism, Paused Time, and Local ExecutionDiscover lesser-known Tokio features like current-thread runtimes for !Send futures, seeded runtimes for deterministic tests, and paused time for precise temporal control in your Rust applications.
#rust #tokio #async #testing #concurrency #deterministic
2025-04-18
What if we embraced simulation-driven development?How deterministic simulation testing can help us build more reliable distributed systems and bridge the gap between development and production environments.
#distributed #testing #reliability #simulation #deterministic
2025-04-11
So, You Want to Learn More About Deterministic Simulation Testing?A curated collection of resources about deterministic simulation testing for distributed systems.
#distributed #testing #reliability #simulation #deterministic
2025-03-27
Key design tip: reverse number scanning in ordered key-value stores
#database #performance #optimization #storage #distributed
2025-03-07
Debugging FoundationDB's Data DistributorA deep dive into the internals of FoundationDB's Data Distributor and how it manages shard placement and team priorities.
#foundationdb #debugging #distributed #database #storage
2025-02-11
Ensuring Safety in FoundationDB's Rust CrateStrategies and techniques for enhancing safety in the FoundationDB Rust crate
#foundationdb #rust #testing #database #distributed
2025-01-15
Back in engineering!I'm moving back in core engineering
#personal
2024-04-22
Redwood’s memory tuning in FoundationDBLearn how to tune FoundationDB for Redwood storage Engine
#foundationdb #performance #storage #database #tuning
2024-03-12
True idempotent transactions with FoundationDB 7.3Learn how to avoid FDB's biggest caveats by using a new feature called automatic idempotency in FoundationDB
#database #distributed #transactions #foundationdb #storage
2024-01-22
The unseen treasures of Infrastructure Engineering: Academic PapersAre you not using academic papers in your favorite RSS app? You should!
#research #learning #engineering #papers
2022-01-17
Best resources to learn about data and distributed systemsLearning distributed systems is tough. You need to go through a lot of academic papers, concepts, code review, before being able to have a global pictures. Thankfully, there is a lot of resources out there that can help you. Here's the best resources I used to learn distributed systems
#learning #distributed #education #database
2021-02-21
Crafting row keys in FoundationDBAn overview of all the helpers to generate row keys with FoundationDB
#database #storage #foundationdb #distributed
2021-01-11
Notes about ETCDList of ressources gleaned about ETCD
#distributed #etcd #storage #consensus #notes
2020-09-30
10 years of programming and counting 🚀A retrospective of the last 10 years
#personal
2020-09-23
Announcing Record-Store, a new (experimental) place for your dataOpensourcing Record-Store
#database #storage #distributed #opensource #foundationdb
2020-09-18
Diving into ETCD's linearizable reads
#distributed #etcd #raft #consensus #storage #diving-into
2020-07-30
Notes about Raft's paperList of ressources gleaned about Raft
#distributed #consensus #raft #algorithms #notes
2020-03-24
Announcing Kafka-on-Pulsar: bring native Kafka protocol support to Apache PulsarWe are excited to announce that StreamNative and OVHcloud are open-sourcing “Kafka on Pulsar” (KoP). KoP brings the native Apache Kafka protocol support to Apache Pulsar by introducing a Kafka protocol handler on Pulsar brokers
#messaging #distributed #kafka #pulsar #opensource
2020-02-14
Contributing to Apache HBase: custom data balancingIn today’s blogpost, we’re going to take a look at our upstream contribution to Apache HBase’s stochastic load balancer, based on our experience of running HBase clusters to support OVHcloud’s monitoring.
#database #distributed #hbase #performance #opensource
2020-01-30
Notes about FoundationDBList of ressources gleaned about FoundationDB
#distributed #foundationdb #storage #database #notes
2019-12-08
Diving into Kafka's Protocol
#messaging #distributed #kafka #networking #diving-into
2019-11-17
Diving into Hbase's MemStore
#database #storage #distributed #hbase #performance #diving-into
2019-08-04
What can be gleaned about GFS successor codenamed Colossus?
#storage #distributed #google #filesystem #hadoop
2019-05-27
Playing with TTL in HBase
#database #hbase #storage #expiration
2019-02-03
Handling OVH's alerts with Apache Flink
#streaming #flink #monitoring #distributed
2019-02-03
What are ACID transactions?
#database #transactions #sql #storage
2019-01-27
Hbase Data Model
#database #distributed #hbase #storage #design
2017-10-11
Introducing HelloExoWorld: The quest to discover exoplanets with Warp10 and Tensorflow
#space #timeseries #analytics #machinelearning
2017-10-08
Engage maximum warp speed in time series analysis with WarpScript
#database #timeseries #analytics #performance
2016-05-13
Event-driven architecture 101
#architecture #messaging #distributed #design
2016-01-04
Let’s talk about containers
#containers #docker #security #infrastructure
revision history © 2026 Pierre Zemb · last rev. 2026-06-24
contact
githubtwitterblueskyrss