org.apache.flink.runtime.jobmanager

枚举 HighAvailabilityMode

java.lang.Object

java.lang.Enum<HighAvailabilityMode>

org.apache.flink.runtime.jobmanager.HighAvailabilityMode

所有已实现的接口:

Serializable, Comparable<HighAvailabilityMode>

public enum HighAvailabilityMode
extends Enum<HighAvailabilityMode>

High availability mode for Flink's cluster execution. Currently supported modes are:

- NONE: No high availability. - ZooKeeper: JobManager high availability via ZooKeeper ZooKeeper is used to select a leader among a group of JobManager. This JobManager is responsible for the job execution. Upon failure of the leader a new leader is elected which will take over the responsibilities of the old leader - FACTORY_CLASS: Use implementation of HighAvailabilityServicesFactory specified in configuration property high-availability

枚举常量概要

枚举常量

枚举常量和说明
FACTORY_CLASS
NONE
ZOOKEEPER

方法概要

限定符和类型	方法和说明
static HighAvailabilityMode	fromConfig(org.apache.flink.configuration.Configuration config) Return the configured HighAvailabilityMode.
static boolean	isHighAvailabilityModeActivated(org.apache.flink.configuration.Configuration configuration) Returns true if the defined recovery mode supports high availability.
static HighAvailabilityMode	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static HighAvailabilityMode[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

NONE

public static final HighAvailabilityMode NONE

ZOOKEEPER

public static final HighAvailabilityMode ZOOKEEPER

FACTORY_CLASS

public static final HighAvailabilityMode FACTORY_CLASS

方法详细资料

values

public static HighAvailabilityMode[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (HighAvailabilityMode c : HighAvailabilityMode.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static HighAvailabilityMode valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

fromConfig

public static HighAvailabilityMode fromConfig(org.apache.flink.configuration.Configuration config)

Return the configured HighAvailabilityMode.

参数:

config - The config to parse

返回:

Configured recovery mode or NONE if not configured.

isHighAvailabilityModeActivated

public static boolean isHighAvailabilityModeActivated(org.apache.flink.configuration.Configuration configuration)

Returns true if the defined recovery mode supports high availability.

参数:

configuration - Configuration which contains the recovery mode

返回:

true if high availability is supported by the recovery mode, otherwise false