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com.twitter.finagle.zipkin.core

DefaultSampler

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object DefaultSampler extends Sampler

The DefaultSampler uses the initialSampleRate flag's value as the sample rate. If the flag is not set by the user it defaults to the sample rate provided by Sampler.sampleRate. Pass this singleton as the Sampler when constructing the Tracer.

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Sampler, AnyRef, Any

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final def asInstanceOf[T0]: T0

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def clone(): AnyRef

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def equals(arg0: Any): Boolean

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def finalize(): Unit

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final def notify(): Unit

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final def notifyAll(): Unit

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def sampleRate: Float

Current sample rate.
Current sample rate.
returns
the initialSampleRate if set by the user else return Sampler.sampleRate.

Definition Classes
DefaultSampler → Sampler
def sampleRecord(record: Record): Boolean

Decides if we should record this record or not.
Decides if we should record this record or not. If this trace is marked as not sampled we just throw away all the records If this trace is marked as None (no decision has been made), consult the sampleTrace impl
returns
true if we should keep it, false for throw away

Definition Classes
Sampler
def sampleTrace(traceId: TraceId, sampleRate: Float): Option[Boolean]

Should we drop this particular trace or send it on to Scribe? True means keep.
Should we drop this particular trace or send it on to Scribe? True means keep. False means drop.
traceId
check if this trace id passes the sampler
sampleRate
don't use the sampler's sample rate, instead use this one directly

Definition Classes
Sampler
def sampleTrace(traceId: TraceId): Option[Boolean]

Should we drop this particular trace or send it on to Scribe? True means keep.
Should we drop this particular trace or send it on to Scribe? True means keep. False means drop.
traceId
check if this trace id passes the sampler

Definition Classes
Sampler
def setSampleRate(sampleRate: Float): Unit

Allows the users to explicitly override the sample rate.
Allows the users to explicitly override the sample rate. This will not work if the initialSampleRate flag is manually set by the user.
sampleRate
the new sample rate. Value should be in the range [0.0, 1.0].

Definition Classes
DefaultSampler → Sampler
final def synchronized[T0](arg0: ⇒ T0): T0

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AnyRef
def toString(): String

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AnyRef → Any
def validSampleRate(sampleRate: Float): Boolean

sampleRate
is this sample rate valid (0-1f range)?

Definition Classes
Sampler
final def wait(): Unit

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AnyRef
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final def wait(arg0: Long, arg1: Int): Unit

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final def wait(arg0: Long): Unit

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Inherited from AnyRef

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