org.apache.flink.runtime.checkpoint.filemerging

类 NonBlockingPhysicalFilePool

java.lang.Object

org.apache.flink.runtime.checkpoint.filemerging.PhysicalFilePool

org.apache.flink.runtime.checkpoint.filemerging.NonBlockingPhysicalFilePool

所有已实现的接口:

Closeable, AutoCloseable

public class NonBlockingPhysicalFilePool
extends PhysicalFilePool

A Non-Blocking PhysicalFilePool which will always provide usable physical file without blocking. It may create many physical files if pollFile(FileMergingSnapshotManager.SubtaskKey, CheckpointedStateScope) frequently.

嵌套类概要

从类继承的嵌套类/接口 org.apache.flink.runtime.checkpoint.filemerging.PhysicalFilePool

PhysicalFilePool.Type

字段概要

从类继承的字段 org.apache.flink.runtime.checkpoint.filemerging.PhysicalFilePool

exclusivePhysicalFilePool, maxFileSize, physicalFileCreator, sharedPhysicalFilePoolBySubtask

构造器概要

构造器

构造器和说明
NonBlockingPhysicalFilePool(long maxFileSize, PhysicalFile.PhysicalFileCreator physicalFileCreator)

方法概要

限定符和类型	方法和说明
protected Queue<PhysicalFile>	createFileQueue() Create and return a file queue.
PhysicalFile	pollFile(FileMergingSnapshotManager.SubtaskKey subtaskKey, CheckpointedStateScope scope) Poll a physical file from the pool.
boolean	tryPutFile(FileMergingSnapshotManager.SubtaskKey subtaskKey, PhysicalFile physicalFile) Try to put a physical file into file pool.

从类继承的方法 org.apache.flink.runtime.checkpoint.filemerging.PhysicalFilePool

close, close, getFileQueue, isEmpty

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

NonBlockingPhysicalFilePool

public NonBlockingPhysicalFilePool(long maxFileSize,
                                   PhysicalFile.PhysicalFileCreator physicalFileCreator)

方法详细资料

tryPutFile

public boolean tryPutFile(FileMergingSnapshotManager.SubtaskKey subtaskKey,
                          PhysicalFile physicalFile)

从类复制的说明: PhysicalFilePool

Try to put a physical file into file pool.

指定者:

tryPutFile 在类中 PhysicalFilePool

参数:

subtaskKey - the key of current subtask.

physicalFile - target physical file.

返回:

true if file is in the pool, false otherwise.

pollFile

@Nonnull
public PhysicalFile pollFile(FileMergingSnapshotManager.SubtaskKey subtaskKey,
                                      CheckpointedStateScope scope)
                               throws IOException

从类复制的说明: PhysicalFilePool

Poll a physical file from the pool.

指定者:

pollFile 在类中 PhysicalFilePool

参数:

subtaskKey - the key of current subtask.

scope - the scope of the checkpoint.

返回:

a physical file.

抛出:

IOException

createFileQueue

protected Queue<PhysicalFile> createFileQueue()

从类复制的说明: PhysicalFilePool

Create and return a file queue.

指定者:

createFileQueue 在类中 PhysicalFilePool

返回:

a created file queue.