Package org.apache.hadoop.ipc

Interface CostProvider

All Known Implementing Classes:

DefaultCostProvider, WeightedTimeCostProvider

public interface CostProvider

Used by DecayRpcScheduler to get the cost of users' operations. This is configurable using CommonConfigurationKeys.IPC_COST_PROVIDER_KEY.

Method Summary

Modifier and Type	Method	Description
long	getCost(ProcessingDetails details)	Get cost from ProcessingDetails which will be used in scheduler.
void	init(java.lang.String namespace, Configuration conf)	Initialize this provider using the given configuration, examining only ones which fall within the provided namespace.

Method Detail

init

void init(java.lang.String namespace,
          Configuration conf)

Initialize this provider using the given configuration, examining only ones which fall within the provided namespace.

Parameters:

namespace - The namespace to use when looking up configurations.

conf - The configuration

getCost

long getCost(ProcessingDetails details)

Get cost from ProcessingDetails which will be used in scheduler.

Parameters:

details - Process details

Returns:

The cost of the call