org.apache.flink.runtime.jobmanager

Enum RecoveryMode

java.lang.Object

java.lang.Enum<RecoveryMode>

org.apache.flink.runtime.jobmanager.RecoveryMode

All Implemented Interfaces:

Serializable, Comparable<RecoveryMode>

public enum RecoveryMode
extends Enum<RecoveryMode>

Recovery mode for Flink's cluster execution. Currently supported modes are: - Standalone: No recovery from JobManager failures - 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

Enum Constant Summary

Enum Constants

Enum Constant and Description
STANDALONE
ZOOKEEPER

Method Summary

Modifier and Type	Method and Description
static RecoveryMode	fromConfig(org.apache.flink.configuration.Configuration config) Return the configured RecoveryMode.
static boolean	isHighAvailabilityModeActivated(org.apache.flink.configuration.Configuration configuration) Returns true if the defined recovery mode supports high availability.
static RecoveryMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static RecoveryMode[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

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

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

STANDALONE

public static final RecoveryMode STANDALONE

ZOOKEEPER

public static final RecoveryMode ZOOKEEPER

Method Detail

values

public static RecoveryMode[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

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

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static RecoveryMode valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

fromConfig

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

Return the configured RecoveryMode.

Parameters:

config - The config to parse

Returns:

Configured recovery mode or ConfigConstants.DEFAULT_RECOVERY_MODE if not configured.

isHighAvailabilityModeActivated

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

Returns true if the defined recovery mode supports high availability.

Parameters:

configuration - Configuration which contains the recovery mode

Returns:

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