ClusteredBeam

Beam composed of a stack of smaller beams. The smaller beams are split across two axes: timestamp (time shard of the data) and partition (shard of the data within one time interval). The stack of beams for a particular timestamp are created in a coordinated fashion, such that all ClusteredBeams for the same identifier will have semantically identical stacks. This interaction is mediated through zookeeper. Beam information persists across ClusteredBeam restarts.

In the case of Druid, each merged beam corresponds to one segment partition number, and each inner beam corresponds to either one index task or a set of redundant index tasks.

                             ClusteredBeam

                    +-------------+---------------+
2010-01-02T03:00:00 |                             |   2010-01-02T04:00:00
                    |                             |
                    v                             v

          +----+ Merged +----+                   ...
          |                  |
     partition 1         partition 2
          |                  |
          v                  v

      Decorated           Decorated

    InnerBeamType       InnerBeamType

Linear Supertypes

Logging, Beam[EventType], AnyRef, Any

Instance Constructors

new ClusteredBeam(zkBasePath: String, identifier: String, tuning: ClusteredBeamTuning, curator: CuratorFramework, emitter: ServiceEmitter, timekeeper: Timekeeper, objectMapper: ObjectMapper, beamMaker: BeamMaker[EventType, InnerBeamType], beamDecorateFn: (Interval, Int) ⇒ (Beam[EventType]) ⇒ Beam[EventType], beamMergeFn: (Seq[Beam[EventType]]) ⇒ Beam[EventType], alertMap: Dict)(implicit arg0: Timestamper[EventType])

Value Members

final def !=(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def ##(): Int

Definition Classes
AnyRef → Any
final def ==(arg0: Any): Boolean

Definition Classes
AnyRef → Any
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
def close(): Future[Unit]

Signal that no more events will be sent.
Signal that no more events will be sent. Many implementations need this to do proper cleanup.

Definition Classes
ClusteredBeam → Beam
final def eq(arg0: AnyRef): Boolean

Definition Classes
AnyRef
def equals(arg0: Any): Boolean

Definition Classes
AnyRef → Any
def finalize(): Unit

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( classOf[java.lang.Throwable] )
final def getClass(): Class[_]

Definition Classes
AnyRef → Any
def hashCode(): Int

Definition Classes
AnyRef → Any
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
lazy val log: Logger

Definition Classes
Logging
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def propagate(events: Seq[EventType]): Future[Int]

Request propagation of events.
Request propagation of events. The operation may fail in various ways, which tend to be specific to the implementing class. Returns the number of events propagated.

Definition Classes
ClusteredBeam → Beam
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
val timestamper: (EventType) ⇒ DateTime
def toString(): String

Definition Classes
ClusteredBeam → AnyRef → Any
final def wait(): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long, arg1: Int): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )
final def wait(arg0: Long): Unit

Definition Classes
AnyRef
Annotations
@throws( ... )

Related Doc: package beam

class ClusteredBeam[EventType, InnerBeamType <: Beam[EventType]] extends Beam[EventType] with Logging

Instance Constructors

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

final def asInstanceOf[T0]: T0

def clone(): AnyRef

def close(): Future[Unit]

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def hashCode(): Int

final def isInstanceOf[T0]: Boolean

lazy val log: Logger

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def propagate(events: Seq[EventType]): Future[Int]

final def synchronized[T0](arg0: ⇒ T0): T0

val timestamper: (EventType) ⇒ DateTime

def toString(): String

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from Logging

Inherited from Beam[EventType]

Inherited from AnyRef

Inherited from Any

Ungrouped