org.apache.flink.streaming.runtime.io

类 CheckpointBarrierUnaligner

java.lang.Object

org.apache.flink.streaming.runtime.io.CheckpointBarrierHandler

org.apache.flink.streaming.runtime.io.CheckpointBarrierUnaligner

所有已实现的接口:

Closeable, AutoCloseable

@Internal
 @NotThreadSafe
public class CheckpointBarrierUnaligner
extends CheckpointBarrierHandler

CheckpointBarrierUnaligner is used for triggering checkpoint while reading the first barrier and keeping track of the number of received barriers and consumed barriers.

方法概要

限定符和类型	方法和说明
void	abortPendingCheckpoint(long checkpointId, org.apache.flink.runtime.checkpoint.CheckpointException exception)
void	close()
CompletableFuture<Void>	getAllBarriersReceivedFuture(long checkpointId)
Optional<org.apache.flink.runtime.io.network.buffer.BufferReceivedListener>	getBufferReceivedListener()
long	getLatestCheckpointId()
boolean	hasInflightData(long checkpointId, org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo) Returns true if there is in-flight data in the buffers for the given channel and checkpoint.
protected boolean	isCheckpointPending()
void	processBarrier(org.apache.flink.runtime.io.network.api.CheckpointBarrier receivedBarrier, org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo) We still need to trigger checkpoint via ThreadSafeUnaligner#notifyBarrierReceived(CheckpointBarrier, InputChannelInfo) while reading the first barrier from one channel, because this might happen earlier than the previous async trigger via mailbox by netty thread.
void	processCancellationBarrier(org.apache.flink.runtime.io.network.api.CancelCheckpointMarker cancelBarrier)
void	processEndOfPartition()
String	toString()

从类继承的方法 org.apache.flink.streaming.runtime.io.CheckpointBarrierHandler

executeInTaskThread, getAlignmentDurationNanos, getCheckpointStartDelayNanos, isBlocked, markCheckpointStart, notifyAbort, notifyAbortOnCancellationBarrier, notifyCheckpoint, releaseBlocksAndResetBarriers

从类继承的方法 java.lang.Object

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

方法详细资料

processBarrier

public void processBarrier(org.apache.flink.runtime.io.network.api.CheckpointBarrier receivedBarrier,
                           org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo)
                    throws Exception

We still need to trigger checkpoint via ThreadSafeUnaligner#notifyBarrierReceived(CheckpointBarrier, InputChannelInfo) while reading the first barrier from one channel, because this might happen earlier than the previous async trigger via mailbox by netty thread.

Note this is also suitable for the trigger case of local input channel.

指定者:

processBarrier 在类中 CheckpointBarrierHandler

抛出:

Exception

abortPendingCheckpoint

public void abortPendingCheckpoint(long checkpointId,
                                   org.apache.flink.runtime.checkpoint.CheckpointException exception)
                            throws IOException

覆盖:

abortPendingCheckpoint 在类中 CheckpointBarrierHandler

抛出:

IOException

processCancellationBarrier

public void processCancellationBarrier(org.apache.flink.runtime.io.network.api.CancelCheckpointMarker cancelBarrier)
                                throws Exception

指定者:

processCancellationBarrier 在类中 CheckpointBarrierHandler

抛出:

Exception

processEndOfPartition

public void processEndOfPartition()
                           throws Exception

指定者:

processEndOfPartition 在类中 CheckpointBarrierHandler

抛出:

Exception

getLatestCheckpointId

public long getLatestCheckpointId()

指定者:

getLatestCheckpointId 在类中 CheckpointBarrierHandler

toString

public String toString()

覆盖:

toString 在类中 Object

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

覆盖:

close 在类中 CheckpointBarrierHandler

抛出:

IOException

hasInflightData

public boolean hasInflightData(long checkpointId,
                               org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo)

从类复制的说明: CheckpointBarrierHandler

Returns true if there is in-flight data in the buffers for the given channel and checkpoint. More specifically, this method returns true iff the unaligner still expects the respective barrier to be consumed on the that channel.

覆盖:

hasInflightData 在类中 CheckpointBarrierHandler

getAllBarriersReceivedFuture

public CompletableFuture<Void> getAllBarriersReceivedFuture(long checkpointId)

覆盖:

getAllBarriersReceivedFuture 在类中 CheckpointBarrierHandler

getBufferReceivedListener

public Optional<org.apache.flink.runtime.io.network.buffer.BufferReceivedListener> getBufferReceivedListener()

覆盖:

getBufferReceivedListener 在类中 CheckpointBarrierHandler

isCheckpointPending

protected boolean isCheckpointPending()

指定者:

isCheckpointPending 在类中 CheckpointBarrierHandler