Packages

c

com.twitter.server.handler

MetricTypeQueryHandler

class MetricTypeQueryHandler extends Service[Request, Response]

A handler which accepts metrics metadata queries via http query strings and returns json encoded metrics with their types and an indicator of whether or not counters are latched.

This is a temporary endpoint which will be replaced by a more fleshed out metadata endpoint.

Note

When passing an explicit histogram metric via ?m=, users must provide the raw histogram name, no percentile (eg, .p99) appended. Example Request: http://$HOST:$PORT/admin/exp/metric_metadata?m=srv/http/requests&m=srv/http/pending&m=srv/mux/framer/write_stream_bytes Response: { "latched" : true, "metrics" : [ { "name" : "srv/http/requests", "kind" : "counter" }, { "name" : "srv/http/pending", "kind" : "gauge" }, { "name" : "srv/mux/framer/write_stream_bytes", "kind" : "histogram" } ] }

Linear Supertypes
Service[Request, Response], Closable, (Request) => Future[Response], AnyRef, Any
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Inherited
  1. MetricTypeQueryHandler
  2. Service
  3. Closable
  4. Function1
  5. AnyRef
  6. Any
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Visibility
  1. Public
  2. Protected

Instance Constructors

  1. new MetricTypeQueryHandler(source: MetricSource = new MetricSource, details: Option[WithHistogramDetails] = None)

Value Members

  1. final def !=(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  2. final def ##: Int
    Definition Classes
    AnyRef → Any
  3. final def ==(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  4. def andThen[A](g: (Future[Response]) => A): (Request) => A
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  5. def apply(req: Request): Future[Response]
    Definition Classes
    MetricTypeQueryHandler → Service → Function1
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. def clone(): AnyRef
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.CloneNotSupportedException]) @native()
  8. def close(deadline: Time): Future[Unit]
    Definition Classes
    Service → Closable
  9. def close(after: Duration): Future[Unit]
    Definition Classes
    Closable
  10. final def close(): Future[Unit]
    Definition Classes
    Closable
  11. def compose[A](g: (A) => Request): (A) => Future[Response]
    Definition Classes
    Function1
    Annotations
    @unspecialized()
  12. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  13. def equals(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef → Any
  14. def finalize(): Unit
    Attributes
    protected[lang]
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.Throwable])
  15. final def getClass(): Class[_ <: AnyRef]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  16. def getHistos(): Iterable[MetricTypeInfo]
    Attributes
    protected
  17. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  18. def histograms: Map[String, HistogramDetail]
    Attributes
    protected
  19. final def isAvailable: Boolean
    Definition Classes
    Service
  20. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  21. def map[Req1](f: (Req1) => Request): Service[Req1, Response]
    Definition Classes
    Service
  22. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  23. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  24. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  25. def query(keys: Iterable[String]): Iterable[MetricTypeInfo]
    Attributes
    protected
  26. def queryHistos(keys: Set[String]): Iterable[MetricTypeInfo]
    Attributes
    protected
  27. def status: Status
    Definition Classes
    Service
  28. final def synchronized[T0](arg0: => T0): T0
    Definition Classes
    AnyRef
  29. def toString(): String
    Definition Classes
    Service → Function1 → AnyRef → Any
  30. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  31. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException])
  32. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws(classOf[java.lang.InterruptedException]) @native()

Inherited from Service[Request, Response]

Inherited from Closable

Inherited from (Request) => Future[Response]

Inherited from AnyRef

Inherited from Any

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