org.apache.flink.runtime.state

类 TaskStateManagerImpl

java.lang.Object

org.apache.flink.runtime.state.TaskStateManagerImpl

所有已实现的接口:

AutoCloseable, org.apache.flink.api.common.state.CheckpointListener, TaskStateManager

public class TaskStateManagerImpl
extends Object
implements TaskStateManager

This class is the default implementation of TaskStateManager and collaborates with the job manager through CheckpointResponder) as well as a task-manager-local state store. Like this, client code does not have to deal with the differences between remote or local state on recovery because this class handles both cases transparently.

Reported state is tagged by clients so that this class can properly forward to the right receiver for the checkpointed state.

构造器概要

构造器

构造器和说明
TaskStateManagerImpl(org.apache.flink.api.common.JobID jobId, ExecutionAttemptID executionAttemptID, TaskLocalStateStore localStateStore, FileMergingSnapshotManagerClosableWrapper fileMergingSnapshotManager, StateChangelogStorage<?> stateChangelogStorage, TaskExecutorStateChangelogStoragesManager changelogStoragesManager, JobManagerTaskRestore jobManagerTaskRestore, CheckpointResponder checkpointResponder)
TaskStateManagerImpl(org.apache.flink.api.common.JobID jobId, ExecutionAttemptID executionAttemptID, TaskLocalStateStore localStateStore, FileMergingSnapshotManagerClosableWrapper fileMergingSnapshotManager, StateChangelogStorage<?> stateChangelogStorage, TaskExecutorStateChangelogStoragesManager changelogStoragesManager, JobManagerTaskRestore jobManagerTaskRestore, CheckpointResponder checkpointResponder, SequentialChannelStateReaderImpl sequentialChannelStateReader)

方法概要

限定符和类型	方法和说明
void	close()
LocalRecoveryConfig	createLocalRecoveryConfig() Returns the configuration for local recovery, i.e. the base directories for all file-based local state of the owning subtask and the general mode for local recovery.
FileMergingSnapshotManager	getFileMergingSnapshotManager()
InflightDataRescalingDescriptor	getInputRescalingDescriptor()
InflightDataRescalingDescriptor	getOutputRescalingDescriptor()
Optional<Long>	getRestoreCheckpointId() Acquires the checkpoint id to restore from.
SequentialChannelStateReader	getSequentialChannelStateReader()
StateChangelogStorage<?>	getStateChangelogStorage() Returns the configured state changelog storage for this task.
StateChangelogStorageView<?>	getStateChangelogStorageView(org.apache.flink.configuration.Configuration configuration, ChangelogStateHandle changelogStateHandle) Returns the state changelog storage view of given ChangelogStateHandle for this task.
Optional<OperatorSubtaskState>	getSubtaskJobManagerRestoredState(OperatorID operatorID) Get the restored state from jobManager which belongs to an operator running in the owning task.
boolean	isTaskDeployedAsFinished() Whether all the operators of the task are finished on restore.
void	notifyCheckpointAborted(long checkpointId) Tracking when some local state can be disposed.
void	notifyCheckpointComplete(long checkpointId) Tracking when local state can be confirmed and disposed.
PrioritizedOperatorSubtaskState	prioritizedOperatorState(OperatorID operatorID) Returns means to restore previously reported state of an operator running in the owning task.
void	reportIncompleteTaskStateSnapshots(CheckpointMetaData checkpointMetaData, CheckpointMetrics checkpointMetrics) Report the stats for state snapshots for an aborted checkpoint.
void	reportInitializationMetrics(SubTaskInitializationMetrics subTaskInitializationMetrics)
void	reportTaskStateSnapshots(CheckpointMetaData checkpointMetaData, CheckpointMetrics checkpointMetrics, TaskStateSnapshot acknowledgedState, TaskStateSnapshot localState) Report the state snapshots for the operator instances running in the owning task.

从类继承的方法 java.lang.Object

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

构造器详细资料

TaskStateManagerImpl

public TaskStateManagerImpl(@Nonnull
                            org.apache.flink.api.common.JobID jobId,
                            @Nonnull
                            ExecutionAttemptID executionAttemptID,
                            @Nonnull
                            TaskLocalStateStore localStateStore,
                            @Nullable
                            FileMergingSnapshotManagerClosableWrapper fileMergingSnapshotManager,
                            @Nullable
                            StateChangelogStorage<?> stateChangelogStorage,
                            @Nonnull
                            TaskExecutorStateChangelogStoragesManager changelogStoragesManager,
                            @Nullable
                            JobManagerTaskRestore jobManagerTaskRestore,
                            @Nonnull
                            CheckpointResponder checkpointResponder)

TaskStateManagerImpl

public TaskStateManagerImpl(@Nonnull
                            org.apache.flink.api.common.JobID jobId,
                            @Nonnull
                            ExecutionAttemptID executionAttemptID,
                            @Nonnull
                            TaskLocalStateStore localStateStore,
                            @Nullable
                            FileMergingSnapshotManagerClosableWrapper fileMergingSnapshotManager,
                            @Nullable
                            StateChangelogStorage<?> stateChangelogStorage,
                            @Nonnull
                            TaskExecutorStateChangelogStoragesManager changelogStoragesManager,
                            @Nullable
                            JobManagerTaskRestore jobManagerTaskRestore,
                            @Nonnull
                            CheckpointResponder checkpointResponder,
                            @Nonnull
                            SequentialChannelStateReaderImpl sequentialChannelStateReader)

方法详细资料

reportInitializationMetrics

public void reportInitializationMetrics(SubTaskInitializationMetrics subTaskInitializationMetrics)

指定者:

reportInitializationMetrics 在接口中 TaskStateManager

reportTaskStateSnapshots

public void reportTaskStateSnapshots(@Nonnull
                                     CheckpointMetaData checkpointMetaData,
                                     @Nonnull
                                     CheckpointMetrics checkpointMetrics,
                                     @Nullable
                                     TaskStateSnapshot acknowledgedState,
                                     @Nullable
                                     TaskStateSnapshot localState)

从接口复制的说明: TaskStateManager

Report the state snapshots for the operator instances running in the owning task.

指定者:

reportTaskStateSnapshots 在接口中 TaskStateManager

参数:

checkpointMetaData - meta data from the checkpoint request.

checkpointMetrics - task level metrics for the checkpoint.

acknowledgedState - the reported states to acknowledge to the job manager.

localState - the reported states for local recovery.

reportIncompleteTaskStateSnapshots

public void reportIncompleteTaskStateSnapshots(CheckpointMetaData checkpointMetaData,
                                               CheckpointMetrics checkpointMetrics)

从接口复制的说明: TaskStateManager

Report the stats for state snapshots for an aborted checkpoint.

指定者:

reportIncompleteTaskStateSnapshots 在接口中 TaskStateManager

参数:

checkpointMetaData - meta data from the checkpoint request.

checkpointMetrics - task level metrics for the checkpoint.

getInputRescalingDescriptor

public InflightDataRescalingDescriptor getInputRescalingDescriptor()

指定者:

getInputRescalingDescriptor 在接口中 TaskStateManager

getOutputRescalingDescriptor

public InflightDataRescalingDescriptor getOutputRescalingDescriptor()

指定者:

getOutputRescalingDescriptor 在接口中 TaskStateManager

isTaskDeployedAsFinished

public boolean isTaskDeployedAsFinished()

从接口复制的说明: TaskStateManager

Whether all the operators of the task are finished on restore.

指定者:

isTaskDeployedAsFinished 在接口中 TaskStateManager

getRestoreCheckpointId

public Optional<Long> getRestoreCheckpointId()

从接口复制的说明: TaskStateManager

Acquires the checkpoint id to restore from.

指定者:

getRestoreCheckpointId 在接口中 TaskStateManager

prioritizedOperatorState

public PrioritizedOperatorSubtaskState prioritizedOperatorState(OperatorID operatorID)

从接口复制的说明: TaskStateManager

Returns means to restore previously reported state of an operator running in the owning task.

指定者:

prioritizedOperatorState 在接口中 TaskStateManager

参数:

operatorID - the id of the operator for which we request state.

返回:

Previous state for the operator. The previous state can be empty if the operator had no previous state.

getSubtaskJobManagerRestoredState

public Optional<OperatorSubtaskState> getSubtaskJobManagerRestoredState(OperatorID operatorID)

从接口复制的说明: TaskStateManager

Get the restored state from jobManager which belongs to an operator running in the owning task.

指定者:

getSubtaskJobManagerRestoredState 在接口中 TaskStateManager

参数:

operatorID - the id of the operator for which we request state.

返回:

the subtask restored state from jobManager.

createLocalRecoveryConfig

@Nonnull
public LocalRecoveryConfig createLocalRecoveryConfig()

从接口复制的说明: TaskStateManager

Returns the configuration for local recovery, i.e. the base directories for all file-based local state of the owning subtask and the general mode for local recovery.

指定者:

createLocalRecoveryConfig 在接口中 TaskStateManager

getSequentialChannelStateReader

public SequentialChannelStateReader getSequentialChannelStateReader()

指定者:

getSequentialChannelStateReader 在接口中 TaskStateManager

getStateChangelogStorage

@Nullable
public StateChangelogStorage<?> getStateChangelogStorage()

从接口复制的说明: TaskStateManager

Returns the configured state changelog storage for this task.

指定者:

getStateChangelogStorage 在接口中 TaskStateManager

getStateChangelogStorageView

@Nullable
public StateChangelogStorageView<?> getStateChangelogStorageView(org.apache.flink.configuration.Configuration configuration,
                                                                           ChangelogStateHandle changelogStateHandle)

从接口复制的说明: TaskStateManager

Returns the state changelog storage view of given ChangelogStateHandle for this task.

指定者:

getStateChangelogStorageView 在接口中 TaskStateManager

getFileMergingSnapshotManager

@Nullable
public FileMergingSnapshotManager getFileMergingSnapshotManager()

指定者:

getFileMergingSnapshotManager 在接口中 TaskStateManager

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)
                              throws Exception

Tracking when local state can be confirmed and disposed.

指定者:

notifyCheckpointComplete 在接口中 org.apache.flink.api.common.state.CheckpointListener

抛出:

Exception

notifyCheckpointAborted

public void notifyCheckpointAborted(long checkpointId)

Tracking when some local state can be disposed.

指定者:

notifyCheckpointAborted 在接口中 org.apache.flink.api.common.state.CheckpointListener

close

public void close()
           throws Exception

指定者:

close 在接口中 AutoCloseable

抛出:

Exception