org.apache.flink.streaming.runtime.io.checkpointing

类 CheckpointedInputGate

java.lang.Object

org.apache.flink.streaming.runtime.io.checkpointing.CheckpointedInputGate

所有已实现的接口:

Closeable, AutoCloseable, org.apache.flink.runtime.io.AvailabilityProvider, org.apache.flink.runtime.io.PullingAsyncDataInput<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>

@Internal
public class CheckpointedInputGate
extends Object
implements org.apache.flink.runtime.io.PullingAsyncDataInput<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>, Closeable

The CheckpointedInputGate uses CheckpointBarrierHandler to handle incoming CheckpointBarrier from the InputGate.

嵌套类概要

从接口继承的嵌套类/接口 org.apache.flink.runtime.io.PullingAsyncDataInput

org.apache.flink.runtime.io.PullingAsyncDataInput.EndOfDataStatus

从接口继承的嵌套类/接口 org.apache.flink.runtime.io.AvailabilityProvider

org.apache.flink.runtime.io.AvailabilityProvider.AvailabilityHelper

字段概要

从接口继承的字段 org.apache.flink.runtime.io.AvailabilityProvider

AVAILABLE

构造器概要

构造器

构造器和说明
CheckpointedInputGate(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputGate, CheckpointBarrierHandler barrierHandler, org.apache.flink.api.common.operators.MailboxExecutor mailboxExecutor) Creates a new checkpoint stream aligner.
CheckpointedInputGate(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputGate, CheckpointBarrierHandler barrierHandler, org.apache.flink.api.common.operators.MailboxExecutor mailboxExecutor, UpstreamRecoveryTracker upstreamRecoveryTracker)

方法概要

限定符和类型	方法和说明
boolean	allChannelsRecovered()
void	close() Cleans up all internally held resources.
CompletableFuture<Void>	getAllBarriersReceivedFuture(long checkpointId)
CompletableFuture<?>	getAvailableFuture()
org.apache.flink.runtime.io.network.partition.consumer.InputChannel	getChannel(int channelIndex)
List<org.apache.flink.runtime.checkpoint.channel.InputChannelInfo>	getChannelInfos()
int	getNumberOfInputChannels()
org.apache.flink.runtime.io.PullingAsyncDataInput.EndOfDataStatus	hasReceivedEndOfData()
boolean	isFinished()
Optional<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>	pollNext()
String	toString()

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.io.AvailabilityProvider

and, isApproximatelyAvailable, isAvailable, or

构造器详细资料

CheckpointedInputGate

public CheckpointedInputGate(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputGate,
                             CheckpointBarrierHandler barrierHandler,
                             org.apache.flink.api.common.operators.MailboxExecutor mailboxExecutor)

Creates a new checkpoint stream aligner.

The aligner will allow only alignments that buffer up to the given number of bytes. When that number is exceeded, it will stop the alignment and notify the task that the checkpoint has been cancelled.

参数:

inputGate - The input gate to draw the buffers and events from.

barrierHandler - Handler that controls which channels are blocked.

CheckpointedInputGate

public CheckpointedInputGate(org.apache.flink.runtime.io.network.partition.consumer.InputGate inputGate,
                             CheckpointBarrierHandler barrierHandler,
                             org.apache.flink.api.common.operators.MailboxExecutor mailboxExecutor,
                             UpstreamRecoveryTracker upstreamRecoveryTracker)

方法详细资料

getAvailableFuture

public CompletableFuture<?> getAvailableFuture()

指定者:

getAvailableFuture 在接口中 org.apache.flink.runtime.io.AvailabilityProvider

pollNext

public Optional<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent> pollNext()
                                                                                        throws IOException,
                                                                                               InterruptedException

指定者:

pollNext 在接口中 org.apache.flink.runtime.io.PullingAsyncDataInput<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>

抛出:

IOException

InterruptedException

getAllBarriersReceivedFuture

public CompletableFuture<Void> getAllBarriersReceivedFuture(long checkpointId)

isFinished

public boolean isFinished()

指定者:

isFinished 在接口中 org.apache.flink.runtime.io.PullingAsyncDataInput<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>

hasReceivedEndOfData

public org.apache.flink.runtime.io.PullingAsyncDataInput.EndOfDataStatus hasReceivedEndOfData()

指定者:

hasReceivedEndOfData 在接口中 org.apache.flink.runtime.io.PullingAsyncDataInput<org.apache.flink.runtime.io.network.partition.consumer.BufferOrEvent>

close

public void close()
           throws IOException

Cleans up all internally held resources.

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException - Thrown if the cleanup of I/O resources failed.

getNumberOfInputChannels

public int getNumberOfInputChannels()

返回:

number of underlying input channels.

toString

public String toString()

覆盖:

toString 在类中 Object

getChannel

public org.apache.flink.runtime.io.network.partition.consumer.InputChannel getChannel(int channelIndex)

getChannelInfos

public List<org.apache.flink.runtime.checkpoint.channel.InputChannelInfo> getChannelInfos()

allChannelsRecovered

public boolean allChannelsRecovered()