org.apache.flink.streaming.runtime.io

类 CheckpointBarrierHandler

java.lang.Object

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

直接已知子类:

CheckpointBarrierAligner, CheckpointBarrierTracker

public abstract class CheckpointBarrierHandler
extends Object

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
abstract void	checkpointSizeLimitExceeded(long maxBufferedBytes)
abstract long	getAlignmentDurationNanos()
abstract long	getLatestCheckpointId()
abstract boolean	isBlocked(int channelIndex) Checks whether the channel with the given index is blocked.
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 bufferedBytes, long alignmentDurationNanos)
abstract boolean	processBarrier(org.apache.flink.runtime.io.network.api.CheckpointBarrier receivedBarrier, int channelIndex, long bufferedBytes)
abstract boolean	processCancellationBarrier(org.apache.flink.runtime.io.network.api.CancelCheckpointMarker cancelBarrier)
abstract boolean	processEndOfPartition()
abstract 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(@Nullable
                                org.apache.flink.runtime.jobgraph.tasks.AbstractInvokable toNotifyOnCheckpoint)

方法详细资料

releaseBlocksAndResetBarriers

public abstract void releaseBlocksAndResetBarriers()

isBlocked

public abstract boolean isBlocked(int channelIndex)

Checks whether the channel with the given index is blocked.

参数:

channelIndex - The channel index to check.

返回:

True if the channel is blocked, false if not.

processBarrier

public abstract boolean processBarrier(org.apache.flink.runtime.io.network.api.CheckpointBarrier receivedBarrier,
                                       int channelIndex,
                                       long bufferedBytes)
                                throws Exception

返回:

true if some blocked data should be unblocked/rolled over.

抛出:

Exception

processCancellationBarrier

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

返回:

true if some blocked data should be unblocked/rolled over.

抛出:

Exception

processEndOfPartition

public abstract boolean processEndOfPartition()
                                       throws Exception

返回:

true if some blocked data should be unblocked/rolled over.

抛出:

Exception

getLatestCheckpointId

public abstract long getLatestCheckpointId()

getAlignmentDurationNanos

public abstract long getAlignmentDurationNanos()

checkpointSizeLimitExceeded

public abstract void checkpointSizeLimitExceeded(long maxBufferedBytes)
                                          throws Exception

抛出:

Exception

notifyCheckpoint

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

抛出:

Exception

notifyAbortOnCancellationBarrier

protected void notifyAbortOnCancellationBarrier(long checkpointId)
                                         throws Exception

抛出:

Exception

notifyAbort

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

抛出:

Exception