Cloud blog · scaling
Adding replicas helps until shared databases, session stores, or poison-queue messages dominate. This article names the coupling points so capacity plans for node applications stay honest.
Published 2026 · Encruelecerias Cloud Node Solutions LLC
Sticky sessions simplify some nodejs deployments but hide uneven load. Prefer external session storage with explicit TTLs and revocation paths.
Scale consumers with visibility timeout math; document poison pill handling.
Read replicas lag; write hotspots remain. Measure contention, not CPU only.
Stampede protection and key cardinality limits for node-js cache layers.
CPU alone misleads IO-bound node services; blend latency, saturation, and queue depth.
Hard ceilings and billing alerts tied to published overage language.
