Platform · 2009–2020 · Cloud Scale
Apache Mesos
Datacenter kernel before Kubernetes won the orchestration war. Twitter survived on it; most did not need it.
Why Apache Mesos faded
Mesos faded because Kubernetes ate its ecosystem and simplified the mental model for platform teams. It was serious tech for serious scale — and overkill sold as strategy elsewhere. The market picked one scheduler religion.
Patterns

Compare with
Related
Platform · 2014–now
Kubernetes
Container orchestration that became the cloud's OS. Overkill for many; unavoidable for many others.
Platform · 2013–now
Docker / Containers
Ship the environment with the code. The packaging unit of modern compute.
Platform · 2006–2018
Hadoop Everywhere
MapReduce as lifestyle. The elephant in rooms that needed a spreadsheet.
$ Enterprises stood up Hadoop clusters for gigabytes of data that fit on one Postgres instance. Hadoop admins, ZooKeeper nightmares, and ETL rewrites burned millions before Spark and cloud warehouses retired the elephant.