org.apache.flink.runtime.util

类 HadoopUtils

java.lang.Object

org.apache.flink.runtime.util.HadoopUtils

public class HadoopUtils
extends Object

Utility class for working with Hadoop-related classes. This should only be used if Hadoop is on the classpath.

构造器概要

构造器

构造器和说明
HadoopUtils()

方法概要

限定符和类型	方法和说明
static org.apache.hadoop.conf.Configuration	getHadoopConfiguration(org.apache.flink.configuration.Configuration flinkConfiguration)
static boolean	hasHDFSDelegationToken() Indicates whether the current user has an HDFS delegation token.
static boolean	isCredentialsConfigured(org.apache.hadoop.security.UserGroupInformation ugi, boolean useTicketCache)
static boolean	isMaxHadoopVersion(int major, int minor) Checks if the Hadoop dependency is at most the given version.
static boolean	isMinHadoopVersion(int major, int minor) Checks if the Hadoop dependency is at least the given version.

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

HadoopUtils

public HadoopUtils()

方法详细资料

getHadoopConfiguration

public static org.apache.hadoop.conf.Configuration getHadoopConfiguration(org.apache.flink.configuration.Configuration flinkConfiguration)

isCredentialsConfigured

public static boolean isCredentialsConfigured(org.apache.hadoop.security.UserGroupInformation ugi,
                                              boolean useTicketCache)
                                       throws Exception

抛出:

Exception

hasHDFSDelegationToken

public static boolean hasHDFSDelegationToken()
                                      throws Exception

Indicates whether the current user has an HDFS delegation token.

抛出:

Exception

isMinHadoopVersion

public static boolean isMinHadoopVersion(int major,
                                         int minor)
                                  throws org.apache.flink.util.FlinkRuntimeException

Checks if the Hadoop dependency is at least the given version.

抛出:

org.apache.flink.util.FlinkRuntimeException

isMaxHadoopVersion

public static boolean isMaxHadoopVersion(int major,
                                         int minor)
                                  throws org.apache.flink.util.FlinkRuntimeException

Checks if the Hadoop dependency is at most the given version.

抛出:

org.apache.flink.util.FlinkRuntimeException