org.apache.flink.runtime.taskmanager

Interface CheckpointResponder

All Known Implementing Classes:

RpcCheckpointResponder

@Internal
public interface CheckpointResponder

Responder for checkpoint acknowledge and decline messages in the Task.

Method Summary

Modifier and Type	Method and Description
void	acknowledgeCheckpoint(org.apache.flink.api.common.JobID jobID, ExecutionAttemptID executionAttemptID, long checkpointId, CheckpointMetrics checkpointMetrics, TaskStateSnapshot subtaskState) Acknowledges the given checkpoint.
void	declineCheckpoint(org.apache.flink.api.common.JobID jobID, ExecutionAttemptID executionAttemptID, long checkpointId, CheckpointException checkpointException) Declines the given checkpoint.
void	reportCheckpointMetrics(org.apache.flink.api.common.JobID jobID, ExecutionAttemptID executionAttemptID, long checkpointId, CheckpointMetrics checkpointMetrics) Report metrics for the given checkpoint.
void	reportInitializationMetrics(org.apache.flink.api.common.JobID jobId, SubTaskInitializationMetrics initializationMetrics)

Method Detail

acknowledgeCheckpoint

void acknowledgeCheckpoint(org.apache.flink.api.common.JobID jobID,
                           ExecutionAttemptID executionAttemptID,
                           long checkpointId,
                           CheckpointMetrics checkpointMetrics,
                           TaskStateSnapshot subtaskState)

Acknowledges the given checkpoint.

Parameters:

jobID - Job ID of the running job

executionAttemptID - Execution attempt ID of the running task

checkpointId - Meta data for this checkpoint

checkpointMetrics - Metrics of this checkpoint

subtaskState - State handles for the checkpoint

reportCheckpointMetrics

void reportCheckpointMetrics(org.apache.flink.api.common.JobID jobID,
                             ExecutionAttemptID executionAttemptID,
                             long checkpointId,
                             CheckpointMetrics checkpointMetrics)

Report metrics for the given checkpoint. Can be used upon receiving abortion notification.

Parameters:

jobID - Job ID of the running job

executionAttemptID - Execution attempt ID of the running task

checkpointId - Meta data for this checkpoint

checkpointMetrics - Metrics of this checkpoint

declineCheckpoint

void declineCheckpoint(org.apache.flink.api.common.JobID jobID,
                       ExecutionAttemptID executionAttemptID,
                       long checkpointId,
                       CheckpointException checkpointException)

Declines the given checkpoint.

Parameters:

jobID - Job ID of the running job

executionAttemptID - Execution attempt ID of the running task

checkpointId - The ID of the declined checkpoint

checkpointException - The exception why the checkpoint was declined

reportInitializationMetrics

void reportInitializationMetrics(org.apache.flink.api.common.JobID jobId,
                                 SubTaskInitializationMetrics initializationMetrics)