org.apache.flink.runtime.state.filesystem

类 FsCheckpointStorageLocation

java.lang.Object

org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory

org.apache.flink.runtime.state.filesystem.FsCheckpointStorageLocation

所有已实现的接口:

CheckpointStorageLocation, CheckpointStreamFactory

public class FsCheckpointStorageLocation
extends FsCheckpointStreamFactory
implements CheckpointStorageLocation

A storage location for checkpoints on a file system.

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory

FsCheckpointStreamFactory.FsCheckpointStateOutputStream

字段概要

从类继承的字段 org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory

MAX_FILE_STATE_THRESHOLD

构造器概要

构造器

构造器和说明
FsCheckpointStorageLocation(org.apache.flink.core.fs.FileSystem fileSystem, org.apache.flink.core.fs.Path checkpointDir, org.apache.flink.core.fs.Path sharedStateDir, org.apache.flink.core.fs.Path taskOwnedStateDir, CheckpointStorageLocationReference reference, int fileStateSizeThreshold, int writeBufferSize)

方法概要

限定符和类型	方法和说明
CheckpointMetadataOutputStream	createMetadataOutputStream() Creates the output stream to persist the checkpoint metadata to.
void	disposeOnFailure() Disposes the checkpoint location in case the checkpoint has failed.
org.apache.flink.core.fs.Path	getCheckpointDirectory()
CheckpointStorageLocationReference	getLocationReference() Gets a reference to the storage location.
org.apache.flink.core.fs.Path	getMetadataFilePath()
org.apache.flink.core.fs.Path	getSharedStateDirectory()
org.apache.flink.core.fs.Path	getTaskOwnedStateDirectory()
String	toString()

从类继承的方法 org.apache.flink.runtime.state.filesystem.FsCheckpointStreamFactory

canFastDuplicate, createCheckpointStateOutputStream, duplicate

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.flink.runtime.state.CheckpointStreamFactory

canFastDuplicate, createCheckpointStateOutputStream, duplicate

构造器详细资料

FsCheckpointStorageLocation

public FsCheckpointStorageLocation(org.apache.flink.core.fs.FileSystem fileSystem,
                                   org.apache.flink.core.fs.Path checkpointDir,
                                   org.apache.flink.core.fs.Path sharedStateDir,
                                   org.apache.flink.core.fs.Path taskOwnedStateDir,
                                   CheckpointStorageLocationReference reference,
                                   int fileStateSizeThreshold,
                                   int writeBufferSize)

方法详细资料

getCheckpointDirectory

public org.apache.flink.core.fs.Path getCheckpointDirectory()

getSharedStateDirectory

public org.apache.flink.core.fs.Path getSharedStateDirectory()

getTaskOwnedStateDirectory

public org.apache.flink.core.fs.Path getTaskOwnedStateDirectory()

getMetadataFilePath

public org.apache.flink.core.fs.Path getMetadataFilePath()

createMetadataOutputStream

public CheckpointMetadataOutputStream createMetadataOutputStream()
                                                          throws IOException

从接口复制的说明: CheckpointStorageLocation

Creates the output stream to persist the checkpoint metadata to.

指定者:

createMetadataOutputStream 在接口中 CheckpointStorageLocation

返回:

The output stream to persist the checkpoint metadata to.

抛出:

IOException - Thrown, if the stream cannot be opened due to an I/O error.

disposeOnFailure

public void disposeOnFailure()
                      throws IOException

从接口复制的说明: CheckpointStorageLocation

Disposes the checkpoint location in case the checkpoint has failed. This method disposes all the data at that location, not just the data written by the particular node or process that calls this method.

指定者:

disposeOnFailure 在接口中 CheckpointStorageLocation

抛出:

IOException

getLocationReference

public CheckpointStorageLocationReference getLocationReference()

从接口复制的说明: CheckpointStorageLocation

Gets a reference to the storage location. This reference is sent to the target storage location via checkpoint RPC messages and checkpoint barriers, in a format avoiding backend-specific classes.

If there is no custom location information that needs to be communicated, this method can simply return CheckpointStorageLocationReference.getDefault().

指定者:

getLocationReference 在接口中 CheckpointStorageLocation

toString

public String toString()

覆盖:

toString 在类中 FsCheckpointStreamFactory