THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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- Control Plane is a channel outside the job that allows taking control actions by multiple controllers like Samza Dashboard, Startpoints controller.
- ContainerPlacementHandler is a stateless handler registered to control plane that dispatches placement actions to invoke Container Placement Service APIs
This control plane can be implemented in the following ways
Option 1: Samza metastore serviceMetastore API [Preferred]
Samza Metastore will provide Metastore provides an API to write to the coordinator stream. One simple way to expose Container Placement API is, Container Placement handler can have a coordinator stream consumer polling control messages from coordinator stream & acting on them.
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