ApplicationInsightsSampler class
ApplicationInsightsSampler is responsible for the following: Implements same trace id hashing algorithm so that traces are sampled the same across multiple nodes Adds item count to span attribute if span is sampled (needed for ingestion service)
Constructors
| Application |
Initializes a new instance of the ApplicationInsightsSampler class. |
Methods
| should |
Checks whether span needs to be created and tracked. |
| to |
Return Sampler description |
Constructor Details
ApplicationInsightsSampler(number)
Initializes a new instance of the ApplicationInsightsSampler class.
new ApplicationInsightsSampler(samplingRatio?: number)Parameters
- samplingRatio
-
number
Value in the range [0,1], 1 meaning all data will sampled and 0 all Tracing data will be sampled out.
Method Details
shouldSample(Context, string, string, SpanKind, Attributes, Link[])
Checks whether span needs to be created and tracked.
function shouldSample(context: Context, traceId: string, spanName: string, spanKind: SpanKind, attributes: Attributes, links: Link[]): SamplingResultParameters
- context
-
Context
Parent Context which may contain a span.
- traceId
-
string
traceif of the span to be created. It can be different from the traceId in the <xref:SpanContext>. Typically in situations when the span to be created starts a new trace.
- spanName
-
string
Name of the span to be created.
- spanKind
-
SpanKind
Kind of the span to be created.
- attributes
-
Attributes
Initial set of SpanAttributes for the Span being constructed.
- links
-
Link[]
Collection of links that will be associated with the Span to be created. Typically useful for batch operations.
Returns
SamplingResult
a <xref:SamplingResult>.
toString()
Return Sampler description
function toString(): stringReturns
string
