EnforceMinimalIncreaseRescalingController (Flink : Runtime 1.19.3-cp2 API)

java.lang.Object
- org.apache.flink.runtime.scheduler.adaptive.scalingpolicy.EnforceMinimalIncreaseRescalingController

All Implemented Interfaces:

RescalingController
```
public class EnforceMinimalIncreaseRescalingController
extends Object
implements RescalingController
```
Simple scaling policy. The user can configure a minimum cumulative parallelism increase to allow a scale up.

Constructor Summary

Constructors
Constructor Description

EnforceMinimalIncreaseRescalingController(org.apache.flink.configuration.Configuration configuration)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`shouldRescale(VertexParallelism currentParallelism, VertexParallelism newParallelism)`	This method gets called whenever new resources or `resource requirements` are available and the scheduler needs to design whether to rescale or not.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - EnforceMinimalIncreaseRescalingController
```
public EnforceMinimalIncreaseRescalingController(org.apache.flink.configuration.Configuration configuration)
```
- Method Detail
  - shouldRescale
```
public boolean shouldRescale(VertexParallelism currentParallelism,
                             VertexParallelism newParallelism)
```
    Description copied from interface: RescalingController
    
    This method gets called whenever new resources or resource requirements are available and the scheduler needs to design whether to rescale or not.
    
    Specified by:
    
    shouldRescale in interface RescalingController
    
    Parameters:
    
    currentParallelism - parallelism of the currently running job graph.
    
    newParallelism - Potential new parallelism with the additional resources.
    
    Returns:
    
    true if the policy decided to rescale based on the provided information.