org.apache.flink.streaming.runtime.io

Class AlignedController

java.lang.Object

org.apache.flink.streaming.runtime.io.AlignedController

All Implemented Interfaces:

CheckpointBarrierBehaviourController

@Internal
public class AlignedController
extends Object
implements CheckpointBarrierBehaviourController

Controller for aligned checkpoints.

Constructor Summary

Constructors

Constructor and Description
AlignedController(org.apache.flink.runtime.io.network.partition.consumer.CheckpointableInput... inputs)

Method Summary

Modifier and Type	Method and Description
void	abortPendingCheckpoint(long cancelledId, org.apache.flink.runtime.checkpoint.CheckpointException exception)
void	barrierReceived(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo, org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier) Invoked per every received CheckpointBarrier.
void	obsoleteBarrierReceived(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo, org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier)
boolean	postProcessLastBarrier(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo, org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier) Invoked once per checkpoint, after the last invocation of CheckpointBarrierBehaviourController.barrierReceived(InputChannelInfo, CheckpointBarrier) for that given checkpoint.
boolean	preProcessFirstBarrier(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo, org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier) Invoked once per checkpoint, before the first invocation of CheckpointBarrierBehaviourController.barrierReceived(InputChannelInfo, CheckpointBarrier) for that given checkpoint.

Methods inherited from class java.lang.Object

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

Constructor Detail

AlignedController

public AlignedController(org.apache.flink.runtime.io.network.partition.consumer.CheckpointableInput... inputs)

Method Detail

barrierReceived

public void barrierReceived(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo,
                            org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier)

Description copied from interface: CheckpointBarrierBehaviourController

Invoked per every received CheckpointBarrier.

Specified by:

barrierReceived in interface CheckpointBarrierBehaviourController

preProcessFirstBarrier

public boolean preProcessFirstBarrier(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo,
                                      org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier)

Description copied from interface: CheckpointBarrierBehaviourController

Invoked once per checkpoint, before the first invocation of CheckpointBarrierBehaviourController.barrierReceived(InputChannelInfo, CheckpointBarrier) for that given checkpoint.

Specified by:

preProcessFirstBarrier in interface CheckpointBarrierBehaviourController

Returns:

true if checkpoint should be triggered.

postProcessLastBarrier

public boolean postProcessLastBarrier(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo,
                                      org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier)
                               throws IOException

Description copied from interface: CheckpointBarrierBehaviourController

Invoked once per checkpoint, after the last invocation of CheckpointBarrierBehaviourController.barrierReceived(InputChannelInfo, CheckpointBarrier) for that given checkpoint.

Specified by:

postProcessLastBarrier in interface CheckpointBarrierBehaviourController

Returns:

true if checkpoint should be triggered.

Throws:

IOException

abortPendingCheckpoint

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

Specified by:

abortPendingCheckpoint in interface CheckpointBarrierBehaviourController

Throws:

IOException

obsoleteBarrierReceived

public void obsoleteBarrierReceived(org.apache.flink.runtime.checkpoint.channel.InputChannelInfo channelInfo,
                                    org.apache.flink.runtime.io.network.api.CheckpointBarrier barrier)
                             throws IOException

Specified by:

obsoleteBarrierReceived in interface CheckpointBarrierBehaviourController

Throws:

IOException