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 and Description
BufferDebloater(String owningTaskName, int gateIndex, long targetTotalBufferSize, int maxBufferSize, int minBufferSize, int bufferDebloatThresholdPercentages, long numberOfSamples)

Method Summary

Modifier and Type	Method and Description
int	getLastBufferSize()
java.time.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 Detail

BufferDebloater

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

Method Detail

recalculateBufferSize

public OptionalInt recalculateBufferSize(long currentThroughput,
                                         int buffersInUse)

getLastBufferSize

public int getLastBufferSize()

getLastEstimatedTimeToConsumeBuffers

public java.time.Duration getLastEstimatedTimeToConsumeBuffers()