org.apache.flink.runtime.blob

类 FileSystemBlobStore

java.lang.Object

org.apache.flink.runtime.blob.FileSystemBlobStore

所有已实现的接口:

Closeable, AutoCloseable, BlobStore, BlobStoreService, BlobView

public class FileSystemBlobStore
extends Object
implements BlobStoreService

Blob store backed by FileSystem.

This is used in addition to the local blob storage for high availability.

构造器概要

构造器

构造器和说明
FileSystemBlobStore(org.apache.flink.core.fs.FileSystem fileSystem, String storagePath)

方法概要

限定符和类型	方法和说明
void	close()
void	closeAndCleanupAllData() Closes and cleans up the store.
boolean	delete(org.apache.flink.api.common.JobID jobId, BlobKey blobKey) Tries to delete a blob from storage.
boolean	deleteAll(org.apache.flink.api.common.JobID jobId) Tries to delete all blobs for the given job from storage.
boolean	get(org.apache.flink.api.common.JobID jobId, BlobKey blobKey, File localFile) Copies a blob to a local file.
boolean	put(File localFile, org.apache.flink.api.common.JobID jobId, BlobKey blobKey) Copies the local file to the blob store.

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

FileSystemBlobStore

public FileSystemBlobStore(org.apache.flink.core.fs.FileSystem fileSystem,
                           String storagePath)
                    throws IOException

抛出:

IOException

方法详细资料

put

public boolean put(File localFile,
                   org.apache.flink.api.common.JobID jobId,
                   BlobKey blobKey)
            throws IOException

从接口复制的说明: BlobStore

Copies the local file to the blob store.

指定者:

put 在接口中 BlobStore

参数:

localFile - The file to copy

jobId - ID of the job this blob belongs to (or null if job-unrelated)

blobKey - The ID for the file in the blob store

返回:

whether the file was copied (true) or not (false)

抛出:

IOException - If the copy fails

get

public boolean get(org.apache.flink.api.common.JobID jobId,
                   BlobKey blobKey,
                   File localFile)
            throws IOException

从接口复制的说明: BlobView

Copies a blob to a local file.

指定者:

get 在接口中 BlobView

参数:

jobId - ID of the job this blob belongs to (or null if job-unrelated)

blobKey - The blob ID

localFile - The local file to copy to

返回:

whether the file was copied (true) or not (false)

抛出:

IOException - If the copy fails

delete

public boolean delete(org.apache.flink.api.common.JobID jobId,
                      BlobKey blobKey)

从接口复制的说明: BlobStore

Tries to delete a blob from storage.

NOTE: This also tries to delete any created directories if empty.

指定者:

delete 在接口中 BlobStore

参数:

jobId - ID of the job this blob belongs to (or null if job-unrelated)

blobKey - The blob ID

返回:

true if the given blob is successfully deleted or non-existing; false otherwise

deleteAll

public boolean deleteAll(org.apache.flink.api.common.JobID jobId)

从接口复制的说明: BlobStore

Tries to delete all blobs for the given job from storage.

NOTE: This also tries to delete any created directories if empty.

指定者:

deleteAll 在接口中 BlobStore

参数:

jobId - The JobID part of all blobs to delete

返回:

true if the job directory is successfully deleted or non-existing; false otherwise

closeAndCleanupAllData

public void closeAndCleanupAllData()

从接口复制的说明: BlobStoreService

Closes and cleans up the store. This entails the deletion of all blobs.

指定者:

closeAndCleanupAllData 在接口中 BlobStoreService

close

public void close()
           throws IOException

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

抛出:

IOException