Key | Default | Type | Description
--- | --- | --- | ---

##### state.backend.type

"hashmap"

String

The state backend to be used to store state.
The implementation can be specified either via their shortcut name, or via the class name of a `StateBackendFactory`. If a factory is specified it is instantiated via its zero argument constructor and its `StateBackendFactory#createFromConfig(ReadableConfig, ClassLoader)` method is called.
Recognized shortcut names are 'hashmap', 'rocksdb' and 'forst'.