Daily Dose of DevOps — SLI definition: without alert fatigue
SLI definition: without alert fatigue A platform capability becomes dangerous when ownership is implicit but authority is broad. For sli definition…
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Transactional Email and SMS API: 5 SaaS Event Notification Evidence Tests
The transactional email and SMS API event notification page says dispatch_evidence_budget_exhausting . On-call sees 43 generated customs reports who…
Daily Dose of DevOps — Kubernetes observability: for regulated workloads
Kubernetes observability: for regulated workloads Scale converts an informal convention into an outage mechanism. For kubernetes observability for r…
Бюджет 999: как в Авито считают надёжность и почему не копируют модель Google
Привет, Хабр! Меня зовут Иван Тарасов , я TUL Architecture Governance в техплатформе Авито . Одна из моих команд — SLA — создаёт условия для повышен…
Marketplace Health Endpoint Monitoring — 2 Small SaaS Observability Stack Boundaries
TL;DR: A small marketplace needs two evidence paths: internal telemetry that explains a failed scheduled job, and an external check that notices pub…
Kitchen Order Status Board: 4 Realtime API Signals (Scoped Kiosk Tokens)
The page says receipt_confirmation_gap is burning its error budget. On-call sees a hospital kitchen order marked ready in the system but missing fro…
Marketplace 2FA: Polling SMS OTP Delivery Status Without Webhooks
The operational constraint is that delivery events are pull-based, so a marketplace login cannot wait for a webhook that will never arrive. Short an…
A Guide to Choose Healthchecks and App Metrics for Missed Cron Jobs
A scheduled task has one operational constraint that changes the tooling choice: when it never starts, it cannot emit its own failure metric. TL;DR:…
SaaS Signup SMS Alerts API: Node.js Delivery Polling and Templates
Use an application-owned verification template and an SMS alerts API with queryable delivery state for a basic US/EU SaaS signup flow, including whe…
Runbooks the On-Call Engineer Will Actually Open at 3am
Cross-posted from the Fluidify blog . Key takeaways Most runbooks are written by someone calm, at a desk, with full context, for a reader who is non…
SMS OTP vs Email OTP: Shift-Deadline Security for HR SaaS Login
TL;DR: For an HR SaaS 2FA login or password-reset flow near a shift boundary, choose SMS OTP or email OTP at runtime according to the employee's ver…
Node.js SMS Alerts API: How SaaS Apps Audit E-commerce Status Without Webhooks
Compliance evidence changes the SMS API decision: choose the provider and architecture that let you prove what your e-commerce signup system request…
Node.js Report Security — SMS OTP 2FA Suppression for Blocked Numbers
The session must not exist until the server has verified the code, and a suppressed phone number must never be treated as a generic delivery failure…
Compare Startup SMS Alerts Provider Templates — 4 US-EU Signature Tests
Operational constraint: a startup that needs to compare an SMS alerts provider cannot treat every failed message as proof that a recipient is invali…
Hosted KPI Dashboard API in Node.js — Attributing AI Agent Batch Costs
Batch the measurements for each closed AI-agent execution window, and make that window the unit of retry, reconciliation, and rollback. TL;DR: for a…
Transactional Email Operations: Compliance, Custom Domains, and Bounce Reconciliation
A signup system has one unforgiving constraint: a verification link that arrives late, twice, or not at all is a reliability failure at the exact mo…
Node.js Backend App Logging with Structured JSON APIs (Request and User IDs)
Short answer: centralize structured JSON application logs, give every checkout attempt a request_id , and carry user_id , trace_id , span_id , envir…
Cheap Node.js Summarization API: Split Long Sales Text with Token Counts
The quality-versus-latency choice should be made before a summarization request, not after a salesperson is staring at a blank CRM record. TL;DR: co…
Race Conditions Don't Happen Once. They Return With Every New Feature.
Your feature passed every test. Then two users clicked at the same moment. Why concurrency bugs keep coming back, and what developers and QA should…
Designing a Zero-Friction AI Dashboard for 3 AM PagerDuty Alerts
When a Sev-1 alert fires at 3 AM, the last thing a Site Reliability Engineer wants to do is have a conversational chat with an AI. They don't need a…
SRE Hindsight: An AI Incident Response Agent with Persistent Organizational Memory
# SRE Hindsight: An AI Incident Response Agent with Persistent Organizational Memory Incidents in production very rarely occur for the first time. A…
RecallOps: Using Hindsight to Recall Past Production Incidents
Introduction Every on-call engineer has had the same feeling: an alert fires, the symptoms look familiar, and you can't remember where you saw them…
The Monitor That Only Passed When It Won a Race
A browser monitor I was migrating failed about two runs in every three. The rest passed cleanly. The application behind it was healthy. Nobody could…
Monorepo vs Polyrepo: What Actually Matters When You’re Building at Scale
The repository strategy is not really a Git decision. It is an architecture, ownership, and team-boundary decision. When a team starts building mult…
Node.js Text Summarization API — Reliable Chat Completions for Moderation SaaS
For a game moderation queue, the operational constraint changes the API choice: a late or duplicated classification can reorder human review, while…
SRE for Modern Teams: A Simple Guide to Reliability, Monitoring, and Automation
Introduction Imagine opening an app and seeing an error every time you try to use it. You would probably stop using that app. People expect digital…
GCP's us-west1 Outage Mapped a Failure Domain Your Service List Couldn't See
A cloud failure domain is not the set of services you selected — it's the set of infrastructure those services actually share, and most architecture…
GM's Brake-by-Wire Investigation Is a Verification Story
The growing investigation into the eBoost brake failure issue has become more than an automotive reliability story. It is increasingly a verificatio…
Эволюция пайплайна метрик: как менялась архитектура с ростом нагрузки
Привет, Хабр! Я Руслан Боярский, SRE в Т-Банке, отвечаю за надежность платформы Sage и принимаю активное участие в ее развитии. Sage — это платформа…
Customer Support DNS: Migrate a Zone with 4-Gate Diff Before Nameservers
The page arrives after a customer changes nameservers: their support portal passes ownership checks, but mail for the same domain no longer behaves…