Package io.trino.operator.exchange

Class ScaleWriterExchanger

java.lang.Object

io.trino.operator.exchange.ScaleWriterExchanger

All Implemented Interfaces:

LocalExchanger

public class ScaleWriterExchanger
extends Object
implements LocalExchanger

Scale up local writers based on throughput and data processed by writers. Input pages are distributed across different writers in a round-robin fashion.

Field Summary

Fields inherited from interface io.trino.operator.exchange.LocalExchanger

FINISHED

Constructor Summary

Constructors

Constructor	Description
ScaleWriterExchanger(List<Consumer<Page>> buffers, LocalExchangeMemoryManager memoryManager, long maxBufferedBytes, AtomicLong dataProcessed, io.airlift.units.DataSize writerScalingMinDataProcessed, Supplier<Long> totalMemoryUsed, long maxMemoryPerNode)

Method Summary

Modifier and Type	Method	Description
void	accept(Page page)
com.google.common.util.concurrent.ListenableFuture<Void>	waitForWriting()

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.trino.operator.exchange.LocalExchanger

finish

Constructor Details

ScaleWriterExchanger

public ScaleWriterExchanger(List<Consumer<Page>> buffers,
 LocalExchangeMemoryManager memoryManager,
 long maxBufferedBytes,
 AtomicLong dataProcessed,
 io.airlift.units.DataSize writerScalingMinDataProcessed,
 Supplier<Long> totalMemoryUsed,
 long maxMemoryPerNode)

Method Details

accept

public void accept(Page page)

Specified by:

accept in interface LocalExchanger

waitForWriting

public com.google.common.util.concurrent.ListenableFuture<Void> waitForWriting()

Specified by:

waitForWriting in interface LocalExchanger