Class LoadBalancer

Selects destinations, skipping Draining/Maintenance/Unhealthy. Honors weight, least-requests, least-time, and affinity.

Inheritance
object
LoadBalancer
Implements
ILoadBalancer
ILatencyRecorder
Inherited Members
Namespace: Titanium.Web.Proxy.Clusters
Assembly: Titanium.Web.Proxy.dll
Syntax
public sealed class LoadBalancer : ILoadBalancer, ILatencyRecorder

Constructors

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LoadBalancer(DestinationHealthTracker?)

Declaration
public LoadBalancer(DestinationHealthTracker? health = null)
Parameters
Type Name Description
DestinationHealthTracker health

Properties

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Health

Declaration
public DestinationHealthTracker Health { get; }
Property Value
Type Description
DestinationHealthTracker

Methods

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GetDestinationLatency(string)

Last observed latency for a destination; null if unknown.

Declaration
public TimeSpan? GetDestinationLatency(string destinationId)
Parameters
Type Name Description
string destinationId
Returns
Type Description
TimeSpan?
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Record(string, TimeSpan)

Declaration
public void Record(string name, TimeSpan duration)
Parameters
Type Name Description
string name
TimeSpan duration
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RecordDestination(string, TimeSpan)

Record per-destination RTT for least-time LB. Default no-op.

Declaration
public void RecordDestination(string destinationId, TimeSpan duration)
Parameters
Type Name Description
string destinationId
TimeSpan duration
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Select(ClusterConfig, ImmutableClusterSnapshot)

Declaration
public DestinationConfig? Select(ClusterConfig cluster, ImmutableClusterSnapshot snapshot)
Parameters
Type Name Description
ClusterConfig cluster
ImmutableClusterSnapshot snapshot
Returns
Type Description
DestinationConfig
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Select(ClusterConfig, ImmutableClusterSnapshot, LoadBalanceContext)

Select with affinity / algorithm context. Default forwards to Titanium.Web.Proxy.Abstractions.Routing.ILoadBalancer.Select(Titanium.Web.Proxy.Abstractions.Clusters.ClusterConfig, Titanium.Web.Proxy.Abstractions.Clusters.ImmutableClusterSnapshot).

Declaration
public DestinationConfig? Select(ClusterConfig cluster, ImmutableClusterSnapshot snapshot, LoadBalanceContext context)
Parameters
Type Name Description
ClusterConfig cluster
ImmutableClusterSnapshot snapshot
LoadBalanceContext context
Returns
Type Description
DestinationConfig

Implements

Titanium.Web.Proxy.Abstractions.Routing.ILoadBalancer
Titanium.Web.Proxy.Abstractions.Plugins.ILatencyRecorder