BackendChain interface 
Desired properties of the backend instances of the broker
Properties
| partitions | The desired number of physical backend partitions.  | 
| redundancy | 
	The desired numbers of backend replicas (pods) in a physical partition.  | 
| workers | Number of logical backend workers per replica (pod).  | 
Property Details
partitions
The desired number of physical backend partitions.
partitions: number
				Property Value
number
		redundancyFactor
	 
	The desired numbers of backend replicas (pods) in a physical partition.
redundancyFactor: number
				Property Value
number
workers
Number of logical backend workers per replica (pod).
workers?: number
				Property Value
number