Split-Brain, ContainerD, Quarkus and a Postgres Cloud Control Plane
From airhacks.fm podcast with adam bien by Adam Bien
June 12, 2026 · 55 min · Episode 400
About this episode
The episode features a discussion on various technologies related to Postgres and Kubernetes, including StackGres and CloudNativePG.
An airhacks.fm conversation with Alvaro Hernandez ( @ahachete ) about: discussion about the quarkus Insights episode "#337 The Database Cloud" stackgres live demo, StackGres as a Quarkus and GraalVM native kubernetes operator for running Postgres , comparing CloudNativePG (CNPG) by EnterpriseDB to StackGres, Patroni for Postgres high availability, the split-brain risk of relying on Kubernetes and etcd alone, distributed consensus and leader lock election via etcd, why distributed systems and cryptography should not be self-implemented, async, synchronous and quorum (semi-synchronous) Postgres replication trade-offs, cascading and cross-region replication topologies, the false-positive problem and heuristic exceptions in two-phase commit, the ondb ("own your database") project for self-hosted Postgres, losing control with managed cloud services and untestable backups, vanilla unmodified Postgres on StackGres, the "Kubernetes without Kubernetes" (Kubeless) pattern, talking directly to ContainerD through the CRI API , runc and the Docker to ContainerD chain, a self-contained native binary that embeds ContainerD over Unix domain sockets, the slony node-local component named after the…
People in this episode
Host: Adam Bien
Guest: Alvaro Hernandez
Topics covered
- Postgres
- Kubernetes
- Cloud services
- Replication
- Distributed systems
- Quarkus
- ContainerD
Keywords
- Postgres
- Kubernetes
- StackGres
- CloudNativePG
- Replication
- GraalVM
- ContainerD
- Distributed systems
- Quarkus
- etcd
Mentioned in this episode
Organizations: StackGres, CloudNativePG, EnterpriseDB, Kubernetes, etcd, Postgres, GraalVM, Kubeless, ContainerD, Slony
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