Class ClusterSingletonManagerSettings

The settings used for the ClusterSingletonManager

Inheritance

Object

ClusterSingletonManagerSettings

Implements

INoSerializationVerificationNeeded

Inherited Members

Object.Equals(Object)

Object.Equals(Object, Object)

Object.GetHashCode()

Object.GetType()

Object.MemberwiseClone()

Object.ReferenceEquals(Object, Object)

Object.ToString()

Namespace: Akka.Cluster.Tools.Singleton

Assembly: Akka.Cluster.Tools.dll

Syntax

[Serializable]
public sealed class ClusterSingletonManagerSettings : INoSerializationVerificationNeeded

Constructors

ClusterSingletonManagerSettings(String, String, TimeSpan, TimeSpan, LeaseUsageSettings, Boolean)

Creates a new instance of the ClusterSingletonManagerSettings.

Declaration

public ClusterSingletonManagerSettings(string singletonName, string role, TimeSpan removalMargin, TimeSpan handOverRetryInterval, LeaseUsageSettings leaseSettings, bool considerAppVersion)

Parameters

Type	Name	Description
String	singletonName	The actor name of the child singleton actor.
String	role	Singleton among the nodes tagged with specified role. If the role is not specified it's a singleton among all nodes in the cluster.
TimeSpan	removalMargin	Margin until the singleton instance that belonged to a downed/removed partition is created in surviving partition. The purpose of this margin is that in case of a network partition the singleton actors in the non-surviving partitions must be stopped before corresponding actors are started somewhere else. This is especially important for persistent actors.
TimeSpan	handOverRetryInterval	When a node is becoming oldest it sends hand-over request to previous oldest, that might be leaving the cluster. This is retried with this interval until the previous oldest confirms that the hand over has started or the previous oldest member is removed from the cluster (+ removalMargin).
LeaseUsageSettings	leaseSettings	LeaseSettings for acquiring before creating the singleton actor
Boolean	considerAppVersion	Should AppVersion be considered when the cluster singleton instance is being moved to another node. When set to false, singleton instance will always be created on oldest member. When set to true, singleton instance will be created on the oldest member with the highest AppVersion number.

Exceptions

Type	Condition
ArgumentException	TBD

ClusterSingletonManagerSettings(String, String, TimeSpan, TimeSpan, Boolean)

Creates a new instance of the ClusterSingletonManagerSettings.

Declaration

public ClusterSingletonManagerSettings(string singletonName, string role, TimeSpan removalMargin, TimeSpan handOverRetryInterval, bool considerAppVersion)

Parameters

Type	Name	Description
String	singletonName	The actor name of the child singleton actor.
String	role	Singleton among the nodes tagged with specified role. If the role is not specified it's a singleton among all nodes in the cluster.
TimeSpan	removalMargin	Margin until the singleton instance that belonged to a downed/removed partition is created in surviving partition. The purpose of this margin is that in case of a network partition the singleton actors in the non-surviving partitions must be stopped before corresponding actors are started somewhere else. This is especially important for persistent actors.
TimeSpan	handOverRetryInterval	When a node is becoming oldest it sends hand-over request to previous oldest, that might be leaving the cluster. This is retried with this interval until the previous oldest confirms that the hand over has started or the previous oldest member is removed from the cluster (+ removalMargin).
Boolean	considerAppVersion	Should AppVersion be considered when the cluster singleton instance is being moved to another node. When set to false, singleton instance will always be created on oldest member. When set to true, singleton instance will be created on the oldest member with the highest AppVersion number.

Exceptions

Type	Condition
ArgumentException	TBD

Properties

ConsiderAppVersion

Should AppVersion be considered when the cluster singleton instance is being moved to another node. When set to false, singleton instance will always be created on oldest member. When set to true, singleton instance will be created on the oldest member with the highest AppVersion number.

Declaration

[Obsolete("ConsiderAppVersion is not used anymore and will be removed in future versions.")]
public bool ConsiderAppVersion { get; }

Property Value

Type	Description
Boolean

HandOverRetryInterval

When a node is becoming oldest it sends hand-over request to previous oldest, that might be leaving the cluster.

Declaration

public TimeSpan HandOverRetryInterval { get; }

Property Value

Type	Description
TimeSpan

LeaseSettings

LeaseSettings for acquiring before creating the singleton actor

Declaration

public LeaseUsageSettings LeaseSettings { get; }

Property Value

Type	Description
LeaseUsageSettings

RemovalMargin

Margin until the singleton instance that belonged to a downed/removed partition is created in surviving partition.

Declaration

public TimeSpan RemovalMargin { get; }

Property Value

Type	Description
TimeSpan

Role

Singleton among the nodes tagged with specified role.

Declaration

public string Role { get; }

Property Value

Type	Description
String

SingletonName

The actor name of the child singleton actor.

Declaration

public string SingletonName { get; }

Property Value

Type	Description
String

Methods

Create(ActorSystem)

Creates a new ClusterSingletonManagerSettings instance.

Declaration

public static ClusterSingletonManagerSettings Create(ActorSystem system)

Parameters

Type	Name	Description
ActorSystem	system	The ActorSystem to which this singleton manager belongs.

Returns

Type	Description
ClusterSingletonManagerSettings	The requested settings.

Exceptions

Type	Condition
ConfigurationException	Thrown if no "akka.cluster.singleton" section is defined.

Create(Config)

Creates a new ClusterSingletonManagerSettings instance.

Declaration

public static ClusterSingletonManagerSettings Create(Config config)

Parameters

Type	Name	Description
Config	config	The HOCON configuration used to create the settings.

Returns

Type	Description
ClusterSingletonManagerSettings	The requested settings.

WithHandOverRetryInterval(TimeSpan)

Create a singleton manager with specified singleton removal margin hand-over retry interval.

Declaration

public ClusterSingletonManagerSettings WithHandOverRetryInterval(TimeSpan handOverRetryInterval)

Parameters

Type	Name	Description
TimeSpan	handOverRetryInterval	TBD

Returns

Type	Description
ClusterSingletonManagerSettings	TBD

WithLeaseSettings(LeaseUsageSettings)

Create a singleton manager with specified singleton lease settings.

Declaration

public ClusterSingletonManagerSettings WithLeaseSettings(LeaseUsageSettings leaseSettings)

Parameters

Type	Name	Description
LeaseUsageSettings	leaseSettings	TBD

Returns

Type	Description
ClusterSingletonManagerSettings

WithRemovalMargin(TimeSpan)

Create a singleton manager with specified singleton removal margin.

Declaration

public ClusterSingletonManagerSettings WithRemovalMargin(TimeSpan removalMargin)

Parameters

Type	Name	Description
TimeSpan	removalMargin	TBD

Returns

Type	Description
ClusterSingletonManagerSettings	TBD

WithRole(String)

Create a singleton manager with specified singleton role.

Declaration

public ClusterSingletonManagerSettings WithRole(string role)

Parameters

Type	Name	Description
String	role	TBD

Returns

Type	Description
ClusterSingletonManagerSettings	TBD

WithSingletonName(String)

Create a singleton manager with specified singleton name.

Declaration

public ClusterSingletonManagerSettings WithSingletonName(string singletonName)

Parameters

Type	Name	Description
String	singletonName	TBD

Returns

Type	Description
ClusterSingletonManagerSettings	TBD

Implements

INoSerializationVerificationNeeded

Extension Methods

ObjectExtensions.IsDefaultForType<T>(T)

ObjectExtensions.AsOption<T>(T)

Extensions.AsInstanceOf<T>(Object)