How Apache Flink’s distributed snapshot algorithm coordinates barriers across operators, persists state to durable storage, and recovers jobs after failure without losing or duplicating records.
How modern span processors decide what to keep, what to drop, and how to bucket latency without lying to you. We unpack tail-sampling evaluators and adaptive bucket strategies used in OpenTelemetry Collector pipelines.
A practitioner’s tour of three Vault primitives engineers touch daily — the Shamir-based unseal flow, the tamper-evident audit log device, and the stateless transit encryption engine — with concrete config and production patterns.
gVisor moves the Linux kernel into userspace to sandbox containers at the syscall boundary, trading raw throughput for a dramatically smaller attack surface.
How to design and ship eBPF-based telemetry pipelines on constrained embedded Linux devices — covering CO-RE, ring buffers, perf events, and the patterns that survive contact with 32 MB RAM and flaky flash.