Since it's Day 2, def appears to be an architectural scalability issue, not some bugs. Quick scan of their engineering blog shows the following stack: -Zookeep

Since it's Day 2, def appears to be an architectural scalability issue, not some bugs. Quick scan of their engineering blog shows the following stack: -Zookeeper, Kafka, Spark, Airflow, Faust (Kafka Streams in Python) -Kubernetes (was/is SALT + Terraform) -AWS Aurora, PG, ES, Influx -Presto via AWS Athena, Redshift -homegrown solutions for a data lake & managing k8s microservices Fwiw, their team does appear to have a rigorous internal post-mortem process (SEV reviews) [0] drawn from industry best practices. Let's hope a public one will be made when issues are resolved. (FINRA will be asking for one anyway.) Not piling on. I genuinely feel for all the infra engineers staying up all day/night fixing this. [0] https://robinhood.engineering/creating-a-sev-process-that-scales-with-robinhood-4b433f9c439b https://robinhood.engineering/creating-a-sev-process-that-sc...