02Module

Resilience, Scalability & Data Architecture

Systems fail. Architecture determines whether failures are graceful or catastrophic. Scale the parts that need scaling, independently.

Blast radius containment through bulkheads, circuit breakers, and graceful degradation

Resilience & Scalability

Failure design and decomposition. Systems fail — architecture determines whether failures are graceful or catastrophic.

Data Architecture

How data flows, who owns it, and how it is governed -- as architectural decisions.

System Map — live

A living production system: requests flow from clients through the gateway and service into the data plane in real time. Click any component to see which architectural patterns apply at that point.

Production system architecture — request flow diagramThree client principals (browser, mobile, AI agent) call the CDN, which forwards authenticated traffic to the API Gateway. The Gateway routes into a service mesh containing the application Service. The Service reads and writes the Database, uses the Cache aside, publishes events to the Message Queue, calls Downstream providers, loads Config/Secrets, and runs AI inference (with a Vector store for retrieval). The Queue consumes back to the Service and fans out to the AI plane. An observability plane at the top captures logs, metrics, and traces from every hop.Observability · Structured Logs · Metrics · Distributed TracesMesh plane · mTLS · sidecarsHTTPSauthedrouteread / writeeventslookuppopulatecallinferenceloadqueryhitconsumerMCP toolresponseCDCconsumeBrowserweb SPA · SSRMobileiOS · AndroidAgentautonomous · high-QPSCDN / EdgeTLS · static cache · WAFAPI Gatewayauth · rate limit · validateServicebusiness logic · sagaDatabaseprimary · replicasCacheRedis · MemcachedMessage QueueKafka · SQS · RabbitMQDownstreampayment · notify · 3rd partyConfig / Secretsvault · flags · discoveryAI / LLMinference · tools · MCPVector Storeembeddings · RAG

Solid arrows are synchronous request flow, left to right. Dashed arrows are sync returns; dotted are fire-and-forget async writes; wider dashes carry pub/sub events and CDC. The observability plane at top captures signals from every hop. Click any node or arrow for patterns; use the filters to isolate a single flow.

Click a component or arrow to see its architectural patterns · ESC to dismiss

availability
97.7%
p95 latency
6200ms
req/s
17.5
errors/s
0.4
in flight
58