Package org.apache.flink.runtime.checkpoint

Class DefaultCheckpointStatsTracker

java.lang.Object

org.apache.flink.runtime.checkpoint.DefaultCheckpointStatsTracker

All Implemented Interfaces:

CheckpointStatsTracker

public class DefaultCheckpointStatsTracker
extends Object
implements CheckpointStatsTracker

Constructor Summary

Constructors

Constructor	Description
DefaultCheckpointStatsTracker(int numRememberedCheckpoints, JobManagerJobMetricGroup metricGroup)	Creates a new checkpoint stats tracker.
DefaultCheckpointStatsTracker(int numRememberedCheckpoints, JobManagerJobMetricGroup metricGroup, CheckpointStatsListener checkpointStatsListener)	Creates a new checkpoint stats tracker.

Method Summary

Modifier and Type	Method	Description
CheckpointStatsSnapshot	createSnapshot()	Creates a new snapshot of the available stats.
PendingCheckpointStats	getPendingCheckpointStats(long checkpointId)
void	reportCompletedCheckpoint(CompletedCheckpointStats completed)	Callback when a checkpoint completes.
void	reportFailedCheckpoint(FailedCheckpointStats failed)
void	reportFailedCheckpointsWithoutInProgress()	Callback when a checkpoint failure without in progress checkpoint.
void	reportIncompleteStats(long checkpointId, ExecutionAttemptID attemptId, CheckpointMetrics metrics)
void	reportInitializationMetrics(ExecutionAttemptID executionAttemptId, SubTaskInitializationMetrics initializationMetrics)
void	reportInitializationStarted(Set<ExecutionAttemptID> toInitialize, long initializationStartTs)
PendingCheckpointStats	reportPendingCheckpoint(long checkpointId, long triggerTimestamp, CheckpointProperties props, Map<JobVertexID,Integer> vertexToDop)	Creates a new pending checkpoint tracker.
void	reportRestoredCheckpoint(long checkpointID, CheckpointProperties properties, String externalPath, long stateSize)

Methods inherited from class java.lang.Object

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

Constructor Details

DefaultCheckpointStatsTracker

public DefaultCheckpointStatsTracker(int numRememberedCheckpoints,
 JobManagerJobMetricGroup metricGroup)

Creates a new checkpoint stats tracker.

Parameters:

numRememberedCheckpoints - Maximum number of checkpoints to remember, including in progress ones.

metricGroup - Metric group for exposed metrics

DefaultCheckpointStatsTracker

public DefaultCheckpointStatsTracker(int numRememberedCheckpoints,
 JobManagerJobMetricGroup metricGroup,
 @Nullable
 CheckpointStatsListener checkpointStatsListener)

Creates a new checkpoint stats tracker.

Parameters:

numRememberedCheckpoints - Maximum number of checkpoints to remember, including in progress ones.

metricGroup - Metric group for exposed metrics.

checkpointStatsListener - Listener for monitoring checkpoint-related events.

Method Details

createSnapshot

public CheckpointStatsSnapshot createSnapshot()

Description copied from interface: CheckpointStatsTracker

Creates a new snapshot of the available stats.

Specified by:

createSnapshot in interface CheckpointStatsTracker

Returns:

The latest statistics snapshot.

reportPendingCheckpoint

public PendingCheckpointStats reportPendingCheckpoint(long checkpointId,
 long triggerTimestamp,
 CheckpointProperties props,
 Map<JobVertexID,Integer> vertexToDop)

Description copied from interface: CheckpointStatsTracker

Creates a new pending checkpoint tracker.

Specified by:

reportPendingCheckpoint in interface CheckpointStatsTracker

Parameters:

checkpointId - ID of the checkpoint.

triggerTimestamp - Trigger timestamp of the checkpoint.

props - The checkpoint properties.

vertexToDop - mapping of JobVertexID to DOP

Returns:

Tracker for statistics gathering or null if no stats were tracked.

reportRestoredCheckpoint

public void reportRestoredCheckpoint(long checkpointID,
 CheckpointProperties properties,
 String externalPath,
 long stateSize)

Specified by:

reportRestoredCheckpoint in interface CheckpointStatsTracker

reportCompletedCheckpoint

public void reportCompletedCheckpoint(CompletedCheckpointStats completed)

Description copied from interface: CheckpointStatsTracker

Callback when a checkpoint completes.

Specified by:

reportCompletedCheckpoint in interface CheckpointStatsTracker

Parameters:

completed - The completed checkpoint stats.

reportFailedCheckpoint

public void reportFailedCheckpoint(FailedCheckpointStats failed)

Specified by:

reportFailedCheckpoint in interface CheckpointStatsTracker

reportFailedCheckpointsWithoutInProgress

public void reportFailedCheckpointsWithoutInProgress()

Description copied from interface: CheckpointStatsTracker

Callback when a checkpoint failure without in progress checkpoint. For example, it should be callback when triggering checkpoint failure before creating PendingCheckpoint.

Specified by:

reportFailedCheckpointsWithoutInProgress in interface CheckpointStatsTracker

getPendingCheckpointStats

public PendingCheckpointStats getPendingCheckpointStats(long checkpointId)

Specified by:

getPendingCheckpointStats in interface CheckpointStatsTracker

reportIncompleteStats

public void reportIncompleteStats(long checkpointId,
 ExecutionAttemptID attemptId,
 CheckpointMetrics metrics)

Specified by:

reportIncompleteStats in interface CheckpointStatsTracker

reportInitializationStarted

public void reportInitializationStarted(Set<ExecutionAttemptID> toInitialize,
 long initializationStartTs)

Specified by:

reportInitializationStarted in interface CheckpointStatsTracker

reportInitializationMetrics

public void reportInitializationMetrics(ExecutionAttemptID executionAttemptId,
 SubTaskInitializationMetrics initializationMetrics)

Specified by:

reportInitializationMetrics in interface CheckpointStatsTracker