 | PhiAccrualFailureDetector Class |
Implementation of 'The Phi Accrual Failure Detector' by Hayashibara et al. as defined in their paper:
[http://ddg.jaist.ac.jp/pub/HDY+04.pdf]
The suspicion level of failure is given by a value called φ (phi).
The basic idea of the φ failure detector is to express the value of φ on a scale that
is dynamically adjusted to reflect current network conditions. A configurable
threshold is used to decide if φ is considered to be a failure.
The value of φ is calculated as:
where F is the cumulative distribution function of a normal distribution with mean
and standard deviation estimated from historical heartbeat inter-arrival times.
φ = -log10(1 - F(timeSinceLastHeartbeat)
Inheritance HierarchyNamespace: Akka.Remote
Assembly: Akka.Remote (in Akka.Remote.dll) Version: 1.2.3.42 (1.2.3.42)
SyntaxThe PhiAccrualFailureDetector type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | PhiAccrualFailureDetector(Clock) |
TBD
|
 | PhiAccrualFailureDetector(Config, EventStream) |
Constructor that reads parameters from config.
Expecting config properties named 'threshold', 'max-sample-size',
'min-std-deviation', 'acceptable-heartbeat-pause', and 'heartbeat-interval'.
|
| PhiAccrualFailureDetector(Double, Int32, TimeSpan, TimeSpan, TimeSpan, Clock) |
Procedural constructor for PhiAccrualDetector
|
Properties| Name | Description | |
|---|---|---|
 | IsAvailable |
TBD
(Overrides FailureDetectorIsAvailable.) |
| IsMonitoring |
TBD
(Overrides FailureDetectorIsMonitoring.) |
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| HeartBeat |
TBD
(Overrides FailureDetectorHeartBeat.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
Extension Methods| Name | Description | |
|---|---|---|
 | AsInstanceOfT |
TBD
(Defined by Extensions.) |
| Match | Overloaded.
Matches the specified target.
(Defined by PatternMatch.) |
| MatchT | Overloaded.
Matches the specified target and return a result of target processing.
(Defined by PatternMatch.) |
See Also