org.apache.flink.runtime.io.network.partition.consumer

类 LocalInputChannel

java.lang.Object

org.apache.flink.runtime.io.network.partition.consumer.InputChannel

org.apache.flink.runtime.io.network.partition.consumer.LocalInputChannel

所有已实现的接口:

BufferAvailabilityListener

public class LocalInputChannel
extends InputChannel
implements BufferAvailabilityListener

An input channel, which requests a local subpartition.

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.runtime.io.network.partition.consumer.InputChannel

InputChannel.BufferAndAvailability

字段概要

从类继承的字段 org.apache.flink.runtime.io.network.partition.consumer.InputChannel

channelInfo, consumedSubpartitionIndexSet, currentBackoff, initialBackoff, inputGate, maxBackoff, numBuffersIn, numBytesIn, partitionId

构造器概要

构造器

构造器和说明
LocalInputChannel(SingleInputGate inputGate, int channelIndex, ResultPartitionID partitionId, ResultSubpartitionIndexSet consumedSubpartitionIndexSet, ResultPartitionManager partitionManager, TaskEventPublisher taskEventPublisher, int initialBackoff, int maxBackoff, org.apache.flink.metrics.Counter numBytesIn, org.apache.flink.metrics.Counter numBuffersIn, ChannelStateWriter stateWriter)

方法概要

限定符和类型	方法和说明
void	acknowledgeAllRecordsProcessed() When received EndOfData from one channel, it need to acknowledge after this event get processed.
void	checkpointStarted(CheckpointBarrier barrier) Called by task thread when checkpointing is started (e.g., any input channel received barrier).
void	checkpointStopped(long checkpointId) Called by task thread on cancel/complete to clean-up temporary data.
Optional<InputChannel.BufferAndAvailability>	getNextBuffer() Returns the next buffer from the consumed subpartitions or Optional.empty() if there is no data to return.
void	notifyDataAvailable(ResultSubpartitionView view) Called whenever there might be new data available.
void	notifyRequiredSegmentId(int subpartitionId, int segmentId) Notify the upstream the id of required segment that should be sent to netty connection.
protected int	peekNextBufferSubpartitionIdInternal() Returns the index of the subpartition where the next buffer locates, or -1 if there is no buffer available and the subpartition to be consumed is not determined.
protected void	requestSubpartitions() Requests the subpartitions specified by InputChannel.partitionId and InputChannel.consumedSubpartitionIndexSet.
void	resumeConsumption() After sending a CheckpointBarrier of exactly-once mode, the upstream will be blocked and become unavailable.
String	toString()
int	unsynchronizedGetNumberOfQueuedBuffers()

从类继承的方法 org.apache.flink.runtime.io.network.partition.consumer.InputChannel

checkError, convertToPriorityEvent, getChannelIndex, getChannelInfo, getConsumedSubpartitionIndexSet, getCurrentBackoff, getPartitionId, increaseBackoff, notifyBufferAvailable, notifyChannelNonEmpty, notifyPriorityEvent, peekNextBufferSubpartitionId, setError, unsynchronizedGetSizeOfQueuedBuffers

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.network.partition.BufferAvailabilityListener

notifyPriorityEvent

构造器详细资料

LocalInputChannel

public LocalInputChannel(SingleInputGate inputGate,
                         int channelIndex,
                         ResultPartitionID partitionId,
                         ResultSubpartitionIndexSet consumedSubpartitionIndexSet,
                         ResultPartitionManager partitionManager,
                         TaskEventPublisher taskEventPublisher,
                         int initialBackoff,
                         int maxBackoff,
                         org.apache.flink.metrics.Counter numBytesIn,
                         org.apache.flink.metrics.Counter numBuffersIn,
                         ChannelStateWriter stateWriter)

方法详细资料

checkpointStarted

public void checkpointStarted(CheckpointBarrier barrier)
                       throws CheckpointException

从类复制的说明: InputChannel

Called by task thread when checkpointing is started (e.g., any input channel received barrier).

覆盖:

checkpointStarted 在类中 InputChannel

抛出:

CheckpointException

checkpointStopped

public void checkpointStopped(long checkpointId)

从类复制的说明: InputChannel

Called by task thread on cancel/complete to clean-up temporary data.

覆盖:

checkpointStopped 在类中 InputChannel

requestSubpartitions

protected void requestSubpartitions()
                             throws IOException

从类复制的说明: InputChannel

Requests the subpartitions specified by InputChannel.partitionId and InputChannel.consumedSubpartitionIndexSet.

抛出:

IOException

peekNextBufferSubpartitionIdInternal

protected int peekNextBufferSubpartitionIdInternal()
                                            throws IOException

从类复制的说明: InputChannel

Returns the index of the subpartition where the next buffer locates, or -1 if there is no buffer available and the subpartition to be consumed is not determined.

指定者:

peekNextBufferSubpartitionIdInternal 在类中 InputChannel

抛出:

IOException

getNextBuffer

public Optional<InputChannel.BufferAndAvailability> getNextBuffer()
                                                           throws IOException

从类复制的说明: InputChannel

Returns the next buffer from the consumed subpartitions or Optional.empty() if there is no data to return.

指定者:

getNextBuffer 在类中 InputChannel

抛出:

IOException

notifyDataAvailable

public void notifyDataAvailable(ResultSubpartitionView view)

从接口复制的说明: BufferAvailabilityListener

Called whenever there might be new data available.

指定者:

notifyDataAvailable 在接口中 BufferAvailabilityListener

参数:

view - the ResultSubpartitionView containing available data.

resumeConsumption

public void resumeConsumption()

从类复制的说明: InputChannel

After sending a CheckpointBarrier of exactly-once mode, the upstream will be blocked and become unavailable. This method tries to unblock the corresponding upstream and resume data consumption.

指定者:

resumeConsumption 在类中 InputChannel

acknowledgeAllRecordsProcessed

public void acknowledgeAllRecordsProcessed()
                                    throws IOException

从类复制的说明: InputChannel

When received EndOfData from one channel, it need to acknowledge after this event get processed.

指定者:

acknowledgeAllRecordsProcessed 在类中 InputChannel

抛出:

IOException

unsynchronizedGetNumberOfQueuedBuffers

public int unsynchronizedGetNumberOfQueuedBuffers()

覆盖:

unsynchronizedGetNumberOfQueuedBuffers 在类中 InputChannel

notifyRequiredSegmentId

public void notifyRequiredSegmentId(int subpartitionId,
                                    int segmentId)

从类复制的说明: InputChannel

Notify the upstream the id of required segment that should be sent to netty connection.

覆盖:

notifyRequiredSegmentId 在类中 InputChannel

参数:

subpartitionId - The id of the corresponding subpartition.

segmentId - The id of required segment.

toString

public String toString()

覆盖:

toString 在类中 Object