SnappyCoarseGrainedSchedulerBackend

Instance Constructors

new SnappyCoarseGrainedSchedulerBackend(scheduler: TaskSchedulerImpl, rpcEnv: RpcEnv)

Type Members

class DriverEndpoint extends ThreadSafeRpcEndpoint with internal.Logging

Definition Classes
CoarseGrainedSchedulerBackend

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
def applicationAttemptId(): Option[String]

Get the attempt ID for this run, if the cluster manager supports multiple attempts.
Get the attempt ID for this run, if the cluster manager supports multiple attempts. Applications run in client mode will not have attempt IDs.
returns
The application attempt id, if available.

Definition Classes
SchedulerBackend
def applicationId(): String

Overriding the spark app id function to provide a snappy specific app id.
Overriding the spark app id function to provide a snappy specific app id.
returns
An application ID

Definition Classes
SnappyCoarseGrainedSchedulerBackend → SchedulerBackend
final def asInstanceOf[T0]: T0

Definition Classes
Any
def clone(): AnyRef

Attributes
protected[java.lang]
Definition Classes
AnyRef
Annotations
@throws( ... )
val conf: SparkConf

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def createDriverEndpoint(properties: Seq[(String, String)]): DriverEndpoint

Attributes
protected
Definition Classes
SnappyCoarseGrainedSchedulerBackend → CoarseGrainedSchedulerBackend
def createDriverEndpointRef(properties: ArrayBuffer[(String, String)]): RpcEndpointRef

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
var currentExecutorIdCounter: Int

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def defaultParallelism(): Int

Definition Classes
CoarseGrainedSchedulerBackend → SchedulerBackend
def doKillExecutors(executorIds: Seq[String]): Future[Boolean]

Kill the given list of executors through the cluster manager.
Kill the given list of executors through the cluster manager.
returns
whether the kill request is acknowledged.

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def doRequestTotalExecutors(requestedTotal: Int): Future[Boolean]

Request executors from the cluster manager by specifying the total number desired, including existing pending and running executors.
Request executors from the cluster manager by specifying the total number desired, including existing pending and running executors.
The semantics here guarantee that we do not over-allocate executors for this application, since a later request overrides the value of any prior request. The alternative interface of requesting a delta of executors risks double counting new executors when there are insufficient resources to satisfy the first request. We make the assumption here that the cluster manager will eventually fulfill all requests when resources free up.
returns
a future whose evaluation indicates whether the request is acknowledged.

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
var driverEndpoint: RpcEndpointRef

Definition Classes
CoarseGrainedSchedulerBackend
def driverUrl: String
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 getDriverLogUrls: Option[Map[String, String]]

Get the URLs for the driver logs.
Get the URLs for the driver logs. These URLs are used to display the links in the UI Executors tab for the driver.
returns
Map containing the log names and their respective URLs

Definition Classes
SchedulerBackend
def getExecutorIds(): Seq[String]

Get the list of currently active executors
Get the list of currently active executors

Definition Classes
CoarseGrainedSchedulerBackend → ExecutorAllocationClient
def hashCode(): Int

Definition Classes
AnyRef → Any
var hostToLocalTaskCount: Map[String, Int]

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): Boolean

Attributes
protected
Definition Classes
Logging
def initializeLogIfNecessary(isInterpreter: Boolean): Unit

Attributes
protected
Definition Classes
Logging
final def isInstanceOf[T0]: Boolean

Definition Classes
Any
def isReady(): Boolean

Definition Classes
CoarseGrainedSchedulerBackend → SchedulerBackend
def isTraceEnabled(): Boolean

Attributes
protected
Definition Classes
Logging
def killExecutor(executorId: String): Boolean

Request that the cluster manager kill the specified executor.
Request that the cluster manager kill the specified executor.
returns
whether the request is acknowledged by the cluster manager.

Definition Classes
ExecutorAllocationClient
final def killExecutors(executorIds: Seq[String], replace: Boolean, force: Boolean): Seq[String]

Request that the cluster manager kill the specified executors.
Request that the cluster manager kill the specified executors.
When asking the executor to be replaced, the executor loss is considered a failure, and killed tasks that are running on the executor will count towards the failure limits. If no replacement is being requested, then the tasks will not count towards the limit.
executorIds
identifiers of executors to kill
replace
whether to replace the killed executors with new ones
force
whether to force kill busy executors
returns
whether the kill request is acknowledged. If list to kill is empty, it will return false.

Definition Classes
CoarseGrainedSchedulerBackend
final def killExecutors(executorIds: Seq[String]): Seq[String]

Request that the cluster manager kill the specified executors.
Request that the cluster manager kill the specified executors.
returns
whether the kill request is acknowledged. If list to kill is empty, it will return false.

Definition Classes
CoarseGrainedSchedulerBackend → ExecutorAllocationClient
def killTask(taskId: Long, executorId: String, interruptThread: Boolean): Unit

Definition Classes
CoarseGrainedSchedulerBackend → SchedulerBackend
var localityAwareTasks: Int

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def log: Logger

Attributes
protected
Definition Classes
Logging
def logDebug(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logDebug(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logError(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logInfo(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logInfo(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logName: String

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logTrace(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def logWarning(msg: ⇒ String, throwable: Throwable): Unit

Attributes
protected
Definition Classes
Logging
def logWarning(msg: ⇒ String): Unit

Attributes
protected
Definition Classes
Logging
def minRegisteredRatio: Double

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
final def ne(arg0: AnyRef): Boolean

Definition Classes
AnyRef
final def notify(): Unit

Definition Classes
AnyRef
final def notifyAll(): Unit

Definition Classes
AnyRef
def removeExecutor(executorId: String, reason: ExecutorLossReason): Unit

Called by subclasses when notified of a lost worker.
Called by subclasses when notified of a lost worker. It just fires the message and returns at once.

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
final def requestExecutors(numAdditionalExecutors: Int): Boolean

Request an additional number of executors from the cluster manager.
Request an additional number of executors from the cluster manager.
returns
whether the request is acknowledged.

Definition Classes
CoarseGrainedSchedulerBackend → ExecutorAllocationClient
final def requestTotalExecutors(numExecutors: Int, localityAwareTasks: Int, hostToLocalTaskCount: Map[String, Int]): Boolean

Update the cluster manager on our scheduling needs.
Update the cluster manager on our scheduling needs. Three bits of information are included to help it make decisions.
numExecutors
The total number of executors we'd like to have. The cluster manager shouldn't kill any running executor to reach this number, but, if all existing executors were to die, this is the number of executors we'd want to be allocated.
localityAwareTasks
The number of tasks in all active stages that have a locality preferences. This includes running, pending, and completed tasks.
hostToLocalTaskCount
A map of hosts to the number of tasks from all active stages that would like to like to run on that host. This includes running, pending, and completed tasks.
returns
whether the request is acknowledged by the cluster manager.

Definition Classes
CoarseGrainedSchedulerBackend → ExecutorAllocationClient
def reset(): Unit

Reset the state of CoarseGrainedSchedulerBackend to the initial state.
Reset the state of CoarseGrainedSchedulerBackend to the initial state. Currently it will only be called in the yarn-client mode when AM re-registers after a failure.

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
def reviveOffers(): Unit

Definition Classes
CoarseGrainedSchedulerBackend → SchedulerBackend
val rpcEnv: RpcEnv

Definition Classes
SnappyCoarseGrainedSchedulerBackend → CoarseGrainedSchedulerBackend
def start(): Unit

Definition Classes
SnappyCoarseGrainedSchedulerBackend → CoarseGrainedSchedulerBackend → SchedulerBackend
def stop(): Unit

Definition Classes
SnappyCoarseGrainedSchedulerBackend → CoarseGrainedSchedulerBackend → SchedulerBackend
def stopExecutors(): Unit

Definition Classes
CoarseGrainedSchedulerBackend
def sufficientResourcesRegistered(): Boolean

Definition Classes
CoarseGrainedSchedulerBackend
final def synchronized[T0](arg0: ⇒ T0): T0

Definition Classes
AnyRef
def toString(): String

Definition Classes
AnyRef → Any
val totalCoreCount: AtomicInteger

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
val totalRegisteredExecutors: AtomicInteger

Attributes
protected
Definition Classes
CoarseGrainedSchedulerBackend
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 cluster

class SnappyCoarseGrainedSchedulerBackend extends CoarseGrainedSchedulerBackend

Instance Constructors

new SnappyCoarseGrainedSchedulerBackend(scheduler: TaskSchedulerImpl, rpcEnv: RpcEnv)

Type Members

class DriverEndpoint extends ThreadSafeRpcEndpoint with internal.Logging

Value Members

final def !=(arg0: Any): Boolean

final def ##(): Int

final def ==(arg0: Any): Boolean

def applicationAttemptId(): Option[String]

def applicationId(): String

final def asInstanceOf[T0]: T0

def clone(): AnyRef

val conf: SparkConf

def createDriverEndpoint(properties: Seq[(String, String)]): DriverEndpoint

def createDriverEndpointRef(properties: ArrayBuffer[(String, String)]): RpcEndpointRef

var currentExecutorIdCounter: Int

def defaultParallelism(): Int

def doKillExecutors(executorIds: Seq[String]): Future[Boolean]

def doRequestTotalExecutors(requestedTotal: Int): Future[Boolean]

var driverEndpoint: RpcEndpointRef

def driverUrl: String

final def eq(arg0: AnyRef): Boolean

def equals(arg0: Any): Boolean

def finalize(): Unit

final def getClass(): Class[_]

def getDriverLogUrls: Option[Map[String, String]]

def getExecutorIds(): Seq[String]

def hashCode(): Int

var hostToLocalTaskCount: Map[String, Int]

def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean = false): Boolean

def initializeLogIfNecessary(isInterpreter: Boolean): Unit

final def isInstanceOf[T0]: Boolean

def isReady(): Boolean

def isTraceEnabled(): Boolean

def killExecutor(executorId: String): Boolean

final def killExecutors(executorIds: Seq[String], replace: Boolean, force: Boolean): Seq[String]

final def killExecutors(executorIds: Seq[String]): Seq[String]

def killTask(taskId: Long, executorId: String, interruptThread: Boolean): Unit

var localityAwareTasks: Int

def log: Logger

def logDebug(msg: ⇒ String, throwable: Throwable): Unit

def logDebug(msg: ⇒ String): Unit

def logError(msg: ⇒ String, throwable: Throwable): Unit

def logError(msg: ⇒ String): Unit

def logInfo(msg: ⇒ String, throwable: Throwable): Unit

def logInfo(msg: ⇒ String): Unit

def logName: String

def logTrace(msg: ⇒ String, throwable: Throwable): Unit

def logTrace(msg: ⇒ String): Unit

def logWarning(msg: ⇒ String, throwable: Throwable): Unit

def logWarning(msg: ⇒ String): Unit

def minRegisteredRatio: Double

final def ne(arg0: AnyRef): Boolean

final def notify(): Unit

final def notifyAll(): Unit

def removeExecutor(executorId: String, reason: ExecutorLossReason): Unit

final def requestExecutors(numAdditionalExecutors: Int): Boolean

final def requestTotalExecutors(numExecutors: Int, localityAwareTasks: Int, hostToLocalTaskCount: Map[String, Int]): Boolean

def reset(): Unit

def reviveOffers(): Unit

val rpcEnv: RpcEnv

def start(): Unit

def stop(): Unit

def stopExecutors(): Unit

def sufficientResourcesRegistered(): Boolean

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

def toString(): String

val totalCoreCount: AtomicInteger

val totalRegisteredExecutors: AtomicInteger

final def wait(): Unit

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

final def wait(arg0: Long): Unit

Inherited from CoarseGrainedSchedulerBackend

Inherited from internal.Logging

Inherited from SchedulerBackend

Inherited from ExecutorAllocationClient

Inherited from AnyRef