io.druid.indexing.overlord.autoscaling

Interface ProvisioningService

All Superinterfaces:

AutoCloseable, Closeable

public interface ProvisioningService
extends Closeable

The ProvisioningService decides if worker nodes should be provisioned or terminated based on the available tasks in the system and the state of the workers in the system. ProvisioningService is tied to the task runner.

See Also:

ProvisioningStrategy.makeProvisioningService(T)

Method Summary

Modifier and Type	Method and Description
void	close() Should be called from TaskRunner's lifecycle stop
ScalingStats	getStats() Get any interesting stats related to scaling

Method Detail

close

void close()

Should be called from TaskRunner's lifecycle stop

Specified by:

close in interface AutoCloseable

Specified by:

close in interface Closeable

getStats

ScalingStats getStats()

Get any interesting stats related to scaling

Returns:

The ScalingStats or `null` if nothing of interest