org.apache.hadoop.mapred

类 JobClient.Renewer

java.lang.Object

org.apache.hadoop.security.token.TokenRenewer

org.apache.hadoop.mapred.JobClient.Renewer

封闭类:

JobClient

@InterfaceAudience.Private
public static class JobClient.Renewer
extends TokenRenewer

构造器概要

构造器

构造器和说明
JobClient.Renewer()

方法概要

方法

限定符和类型	方法和说明
void	cancel(Token<?> token, Configuration conf) Cancel the given token
boolean	handleKind(Text kind) Does this renewer handle this kind of token?
boolean	isManaged(Token<?> token) Is the given token managed?
long	renew(Token<?> token, Configuration conf) Renew the given token.

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

JobClient.Renewer

public JobClient.Renewer()

方法详细资料

handleKind

public boolean handleKind(Text kind)

从类复制的说明: TokenRenewer

Does this renewer handle this kind of token?

指定者:

handleKind 在类中 TokenRenewer

参数:

kind - the kind of the token

返回:

true if this renewer can renew it

renew

public long renew(Token<?> token,
         Configuration conf)
           throws IOException,
                  InterruptedException

从类复制的说明: TokenRenewer

Renew the given token.

指定者:

renew 在类中 TokenRenewer

返回:

the new expiration time

抛出:

IOException

InterruptedException

cancel

public void cancel(Token<?> token,
          Configuration conf)
            throws IOException,
                   InterruptedException

从类复制的说明: TokenRenewer

Cancel the given token

指定者:

cancel 在类中 TokenRenewer

抛出:

IOException

InterruptedException

isManaged

public boolean isManaged(Token<?> token)
                  throws IOException

从类复制的说明: TokenRenewer

Is the given token managed? Only managed tokens may be renewed or cancelled.

指定者:

isManaged 在类中 TokenRenewer

参数:

token - the token being checked

返回:

true if the token may be renewed or cancelled

抛出:

IOException