Package org.apache.flink.runtime.throughput

Class BufferDebloater

java.lang.Object

org.apache.flink.runtime.throughput.BufferDebloater

public class BufferDebloater
extends Object

Class for automatic calculation of the buffer size based on the current throughput and configuration.

Constructor Summary

Constructors

Constructor	Description
BufferDebloater(String owningTaskName, int gateIndex, long targetTotalTime, int startingBufferSize, int maxBufferSize, int minBufferSize, int bufferDebloatThresholdPercentages, long numberOfSamples)
BufferDebloater(String owningTaskName, int gateIndex, long targetTotalTime, int maxBufferSize, int minBufferSize, int bufferDebloatThresholdPercentages, long numberOfSamples)

Method Summary

Modifier and Type	Method	Description
int	getLastBufferSize()
Duration	getLastEstimatedTimeToConsumeBuffers()
OptionalInt	recalculateBufferSize(long currentThroughput, int buffersInUse)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

BufferDebloater

public BufferDebloater(String owningTaskName,
 int gateIndex,
 long targetTotalTime,
 int maxBufferSize,
 int minBufferSize,
 int bufferDebloatThresholdPercentages,
 long numberOfSamples)

BufferDebloater

public BufferDebloater(String owningTaskName,
 int gateIndex,
 long targetTotalTime,
 int startingBufferSize,
 int maxBufferSize,
 int minBufferSize,
 int bufferDebloatThresholdPercentages,
 long numberOfSamples)

Method Details

recalculateBufferSize

public OptionalInt recalculateBufferSize(long currentThroughput,
 int buffersInUse)

getLastBufferSize

public int getLastBufferSize()

getLastEstimatedTimeToConsumeBuffers

public Duration getLastEstimatedTimeToConsumeBuffers()