Crate mz_controller

A representative of STORAGE and COMPUTE that maintains summaries of the involved objects.

The Controller provides the ability to create and manipulate storage and compute instances. Each of Storage and Compute provide their own controllers, accessed through the storage() and compute(instance_id) methods. It is an error to access a compute instance before it has been created.

The controller also provides a recv() method that returns responses from the storage and compute layers, which may remain of value to the interested user. With time, these responses may be thinned down in an effort to make the controller more self contained.

Consult the StorageController and ComputeController documentation for more information about each of these interfaces.

Modules

clusters

Cluster management.

Structs

Controller

A client that maintains soft state and validates commands, in addition to forwarding them.

ControllerConfig

Configures a controller.

Enums

ControllerResponse

Responses that Controller can produce.

Readiness

Whether one of the underlying controllers is ready for their process method to be called.

Functions

prepare_initialization

Seed StorageTxn with any state required to instantiate a StorageController.