📐 CAP & Distribution Invariant
PACELC Theorem Proof:
Under normal operations: Tradeoff between Latency (L) and Consistency (C). With Redis cache-aside, reads achieve $\mathcal{O}(1)$ memory lookup latency ($1.2\text{ms}$) at the cost of eventual consistency bounded by TTL window $T_{ttl}$.
📜 Production Event Stream
[00:00] Distributed cluster initialized.
[00:01] Envoy rate-limiting window set to 10K RPS.
[00:02] Redis cluster primed. In-memory cache hit rate: 98%.