org.apache.flink.runtime.scheduler.adaptive.scalingpolicy

Interface ScaleUpController

All Known Implementing Classes:

ReactiveScaleUpController

@Internal
public interface ScaleUpController

Simple policy for controlling the scale up behavior of the AdaptiveScheduler.

Method Summary

Modifier and Type	Method and Description
boolean	canScaleUp(int currentCumulativeParallelism, int newCumulativeParallelism) This method gets called whenever new resources are available to the scheduler to scale up.

Method Detail

canScaleUp

boolean canScaleUp(int currentCumulativeParallelism,
                   int newCumulativeParallelism)

This method gets called whenever new resources are available to the scheduler to scale up.

Parameters:

currentCumulativeParallelism - Cumulative parallelism of the currently running job graph.

newCumulativeParallelism - Potential new cumulative parallelism with the additional resources.

Returns:

true if the policy decided to scale up based on the provided information.