org.apache.flink.streaming.runtime.io

类 CheckpointBarrierHandler

java.lang.Object

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

所有已实现的接口:

Closeable, AutoCloseable

直接已知子类:

CheckpointBarrierAligner, CheckpointBarrierTracker, CheckpointBarrierUnaligner

public abstract class CheckpointBarrierHandler
extends Object
implements Closeable

The CheckpointBarrierHandler reacts to checkpoint barrier arriving from the input channels. Different implementations may either simply track barriers, or block certain inputs on barriers.

构造器概要

构造器

构造器和说明
CheckpointBarrierHandler(org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable toNotifyOnCheckpoint)

方法概要

限定符和类型	方法和说明
protected void	abortPendingCheckpoint(long checkpointId, org.apache.flink.runtime.checkpoint.CheckpointException exception)
void	close()
protected <E extends Exception> void	executeInTaskThread(org.apache.flink.util.function.ThrowingRunnable<E> runnable, String descriptionFormat, Object... descriptionArgs)
long	getAlignmentDurationNanos()
CompletableFuture<Void>	getAllBarriersReceivedFuture(long checkpointId)
Optional<org.apache.flink.runtime.io.network.buffer.BufferReceivedListener>	getBufferReceivedListener()
long	getCheckpointStartDelayNanos()
abstract 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.
boolean	isBlocked(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo) Checks whether the channel with the given index is blocked.
protected abstract boolean	isCheckpointPending()
protected void	markCheckpointStart(long checkpointCreationTimestamp)
protected void	notifyAbort(long checkpointId, org.apache.flink.runtime.checkpoint.CheckpointException cause)
protected void	notifyAbortOnCancellationBarrier(long checkpointId)
protected void	notifyCheckpoint(org.apache.flink.runtime.io.network.api.CheckpointBarrier checkpointBarrier, long alignmentDurationNanos)
abstract void	processBarrier(org.apache.flink.runtime.io.network.api.CheckpointBarrier receivedBarrier, org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo)
abstract void	processCancellationBarrier(org.apache.flink.runtime.io.network.api.CancelCheckpointMarker cancelBarrier)
abstract void	processEndOfPartition()
void	releaseBlocksAndResetBarriers()

从类继承的方法 java.lang.Object

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

构造器详细资料

CheckpointBarrierHandler

public CheckpointBarrierHandler(org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable toNotifyOnCheckpoint)

方法详细资料

releaseBlocksAndResetBarriers

public void releaseBlocksAndResetBarriers()
                                   throws IOException

抛出:

IOException

isBlocked

public boolean isBlocked(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo)

Checks whether the channel with the given index is blocked.

参数:

channelInfo - The channel index to check.

返回:

True if the channel is blocked, false if not.

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException

processBarrier

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

抛出:

Exception

processCancellationBarrier

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

抛出:

Exception

processEndOfPartition

public abstract void processEndOfPartition()
                                    throws Exception

抛出:

Exception

getLatestCheckpointId

public abstract long getLatestCheckpointId()

getAlignmentDurationNanos

public long getAlignmentDurationNanos()

getCheckpointStartDelayNanos

public long getCheckpointStartDelayNanos()

getBufferReceivedListener

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

hasInflightData

public 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. More specifically, this method returns true iff the unaligner still expects the respective barrier to be consumed on the that channel.

getAllBarriersReceivedFuture

public CompletableFuture<Void> getAllBarriersReceivedFuture(long checkpointId)

notifyCheckpoint

protected void notifyCheckpoint(org.apache.flink.runtime.io.network.api.CheckpointBarrier checkpointBarrier,
                                long alignmentDurationNanos)
                         throws IOException

抛出:

IOException

notifyAbortOnCancellationBarrier

protected void notifyAbortOnCancellationBarrier(long checkpointId)
                                         throws IOException

抛出:

IOException

notifyAbort

protected void notifyAbort(long checkpointId,
                           org.apache.flink.runtime.checkpoint.CheckpointException cause)
                    throws IOException

抛出:

IOException

markCheckpointStart

protected void markCheckpointStart(long checkpointCreationTimestamp)

executeInTaskThread

protected <E extends Exception> void executeInTaskThread(org.apache.flink.util.function.ThrowingRunnable<E> runnable,
                                                         String descriptionFormat,
                                                         Object... descriptionArgs)
                                                  throws E extends Exception

抛出:

E extends Exception

isCheckpointPending

protected abstract boolean isCheckpointPending()

abortPendingCheckpoint

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

抛出:

IOException