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Systems

Distributed systems ideas that show up in production platforms: caching, streams, consistency, observability. Astra encodes many of these as hard SLAs (10ms reads, scheduling latency).

Subpages

Page Focus
Caching Read paths, stampede, TTL
Streaming Redis streams, consumer groups
Consistency Postgres vs cache
Observability Metrics, logs, traces
flowchart LR
  W[Write] --> PG[(Postgres)]
  PG --> EV[Event]
  EV --> CACHE[Cache update]
  R[Read hot path] --> CACHE