org.apache.flink.runtime.checkpoint

Class PendingCheckpointStats

java.lang.Object

org.apache.flink.runtime.checkpoint.AbstractCheckpointStats

org.apache.flink.runtime.checkpoint.PendingCheckpointStats

All Implemented Interfaces:

Serializable

public class PendingCheckpointStats
extends AbstractCheckpointStats

Statistics for a pending checkpoint that is still in progress.

This is the starting point for all checkpoint tracking. The life cycle of instances of this class is tightly coupled to a PendingCheckpoint instance, which forwards statistics about acknowledged subtasks via reportSubtaskStats(JobVertexID, SubtaskStateStats).

Depending on whether the PendingCheckpoint is finalized successfully or aborted, we replace ourselves with a CompletedCheckpointStats or FailedCheckpointStats and notify the CheckpointStatsTracker.

The statistics gathered here are all live updated.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
long	getAlignmentBuffered() Returns the total buffered bytes during alignment over all subtasks.
SubtaskStateStats	getLatestAcknowledgedSubtaskStats() Returns the latest acknowledged subtask stats or null if none was acknowledged yet.
int	getNumberOfAcknowledgedSubtasks() Returns the number of acknowledged subtasks.
long	getStateSize() Returns the total checkpoint state size over all subtasks.
CheckpointStatsStatus	getStatus() Returns the status of this checkpoint.
String	toString()

Methods inherited from class org.apache.flink.runtime.checkpoint.AbstractCheckpointStats

getAllTaskStateStats, getCheckpointId, getEndToEndDuration, getLatestAckTimestamp, getNumberOfSubtasks, getProperties, getTaskStateStats, getTriggerTimestamp

Methods inherited from class java.lang.Object

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

Method Detail

getStatus

public CheckpointStatsStatus getStatus()

Description copied from class: AbstractCheckpointStats

Returns the status of this checkpoint.

Specified by:

getStatus in class AbstractCheckpointStats

Returns:

Status of this checkpoint

getNumberOfAcknowledgedSubtasks

public int getNumberOfAcknowledgedSubtasks()

Description copied from class: AbstractCheckpointStats

Returns the number of acknowledged subtasks.

Specified by:

getNumberOfAcknowledgedSubtasks in class AbstractCheckpointStats

Returns:

The number of acknowledged subtasks.

getStateSize

public long getStateSize()

Description copied from class: AbstractCheckpointStats

Returns the total checkpoint state size over all subtasks.

Specified by:

getStateSize in class AbstractCheckpointStats

Returns:

Total checkpoint state size over all subtasks.

getAlignmentBuffered

public long getAlignmentBuffered()

Description copied from class: AbstractCheckpointStats

Returns the total buffered bytes during alignment over all subtasks.

Can return -1 if the runtime did not report this.

Specified by:

getAlignmentBuffered in class AbstractCheckpointStats

Returns:

Total buffered bytes during alignment over all subtasks.

getLatestAcknowledgedSubtaskStats

public SubtaskStateStats getLatestAcknowledgedSubtaskStats()

Description copied from class: AbstractCheckpointStats

Returns the latest acknowledged subtask stats or null if none was acknowledged yet.

Specified by:

getLatestAcknowledgedSubtaskStats in class AbstractCheckpointStats

Returns:

Latest acknowledged subtask stats or null

toString

public String toString()

Overrides:

toString in class Object