org.apache.hadoop.hbase.io.hfile.bucket

接口 PersistentIOEngine

所有超级接口:

IOEngine

所有已知实现类:

FileIOEngine

@InterfaceAudience.Private
public interface PersistentIOEngine
extends IOEngine

A class implementing PersistentIOEngine interface supports persistent and file integrity verify for BucketCache

方法概要

方法

限定符和类型	方法和说明
byte[]	calculateChecksum(String algorithm) Using an encryption algorithm to calculate a checksum, the default encryption algorithm is MD5
boolean	verifyFileIntegrity(byte[] persistentChecksum, String algorithm) Verify cache files's integrity

从接口继承的方法 org.apache.hadoop.hbase.io.hfile.bucket.IOEngine

isPersistent, read, shutdown, sync, write

方法详细资料

calculateChecksum

byte[] calculateChecksum(String algorithm)

Using an encryption algorithm to calculate a checksum, the default encryption algorithm is MD5

参数:

algorithm - which algorithm to calculate checksum

返回:

the checksum which is convert to HexString

verifyFileIntegrity

boolean verifyFileIntegrity(byte[] persistentChecksum,
                          String algorithm)

Verify cache files's integrity

参数:

persistentChecksum - the persistent checksum

algorithm - which algorithm to calculate checksum

返回:

true if verify successfully