org.apache.flink.runtime.state

类 TaskStateManagerImpl

java.lang.Object

org.apache.flink.runtime.state.TaskStateManagerImpl

所有已实现的接口:

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, JobManagerTaskRestore jobManagerTaskRestore, CheckpointResponder checkpointResponder)

方法概要

限定符和类型	方法和说明
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.
void	notifyCheckpointComplete(long checkpointId) Tracking when local state can be disposed.
PrioritizedOperatorSubtaskState	prioritizedOperatorState(OperatorID operatorID) Returns means to restore previously reported state of an operator running in the owning task.
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
                            JobManagerTaskRestore jobManagerTaskRestore,
                            @Nonnull
                            CheckpointResponder checkpointResponder)

方法详细资料

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.

prioritizedOperatorState

@Nonnull
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.

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

notifyCheckpointComplete

public void notifyCheckpointComplete(long checkpointId)
                              throws Exception

Tracking when local state can be disposed.

指定者:

notifyCheckpointComplete 在接口中 CheckpointListener

参数:

checkpointId - The ID of the checkpoint that has been completed.

抛出:

Exception