org.apache.tez.runtime.api

Interface VertexStatistics

@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface VertexStatistics

Provides various statistics about the physical execution of this Vertex
This only provides point in time values for the statistics and values are refreshed based on when the implementations of the inputs/outputs/tasks etc. update their reported statistics. The values may increase or decrease based on task completions or failures.

Method Summary

Methods

Modifier and Type	Method and Description
InputStatistics	getInputStatistics(String inputName) Get statistics about an Edge input or external input of this Vertex.
OutputStatistics	getOutputStatistics(String outputName) Get statistics about an Edge output or external output of this Vertex.

Method Detail

getInputStatistics

InputStatistics getInputStatistics(String inputName)

Get statistics about an Edge input or external input of this Vertex.

Parameters:

inputName - Name of the input Edge or external input of this vertex

Returns:

InputStatistics for the given input

getOutputStatistics

OutputStatistics getOutputStatistics(String outputName)

Get statistics about an Edge output or external output of this Vertex.

Parameters:

outputName - Name of the output Edge or external output of this vertex

Returns:

OutputStatistics for the given output