Platform · 2009–now · Cloud Scale
Redis
Fast structures in memory with persistence options. Cache, queue, session store — pick your footgun.
Redis stuck because microseconds matter and most apps have hot keys worth isolating. Misused as primary storage it hurts; used as a specialized layer it prints money. Simple protocol, sharp edges, permanent niche.
Case studies
Context
Split everything, then pay for the glue
Hyperscale patterns escaped the companies that needed them. Containers unified packaging; Kubernetes became the cloud OS; microservices and NoSQL were sold as defaults. Mobile-first stuck because screens changed. Cargo-cult distributed systems stuck around as invoices. The durable move was packaging and ops maturity — not rewriting every app into a mesh.
Compare with
Related
Platform · 1974–now
SQL / Relational
Declarative data that outlived every ORM fashion cycle. Postgres and friends keep winning by being boring.
Platform · 2011–now
Apache Kafka
Durable log as nervous system. Event-driven architecture with real operational teeth.
Platform · 2009–now
MongoDB
Document DB that became a punchline, then a grown-up product. Survived by getting serious about transactions and ops.