govern_backpressure

@startuml title Governance, Backpressure & Scaling top to bottom direction skinparam shadowing false rectangle "AlgoX2 Control Plane" as CP { [Namespaces/ACLs] [Policies (QoS, quotas)] [Admission Control] } rectangle "Data Plane" as DP { [Gateways] [Sequencers] [Storage] } rectangle "ClickHouse" as CH { [Consumers] } [Namespaces/ACLs] -down-> [Gateways] [Policies (QoS, quotas)] -down-> [Gateways] [Admission Control] -down-> [Gateways] [Consumers] -left-> [Gateways] : backpressure when lag↑ [Gateways] -down-> [Sequencers] : scale independently [Sequencers] -down-> [Storage] : bounded journal files note right of CH - Multiple clusters can read same streams - No hot partitions, no rebal storms end note @enduml