Class

org.apache.spark.storage

FileBasedTopologyMapper

Related Doc: package storage

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class FileBasedTopologyMapper extends TopologyMapper with Logging

A simple file based topology mapper. This expects topology information provided as a java.util.Properties file. The name of the file is obtained from SparkConf property spark.storage.replication.topologyFile. To use this topology mapper, set the spark.storage.replication.topologyMapper property to org.apache.spark.storage.FileBasedTopologyMapper

Annotations
@DeveloperApi()
Source
TopologyMapper.scala
Linear Supertypes
Logging, TopologyMapper, AnyRef, Any
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  1. FileBasedTopologyMapper
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Visibility
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Instance Constructors

  1. new FileBasedTopologyMapper(conf: SparkConf)

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    conf

    SparkConf object

Value Members

  1. final def !=(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  2. final def ##(): Int

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    AnyRef → Any

  3. final def ==(arg0: Any): Boolean

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    Definition Classes
    AnyRef → Any

  4. final def asInstanceOf[T0]: T0

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    Definition Classes
    Any

  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  6. final def eq(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  7. def equals(arg0: Any): Boolean

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    Definition Classes
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  8. def finalize(): Unit

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    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )

  9. final def getClass(): Class[_]

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    Definition Classes
    AnyRef → Any

  10. def getTopologyForHost(hostname: String): Option[String]

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    Gets the topology information given the host name

    Gets the topology information given the host name

    hostname

    Hostname

    returns

    topology information for the given hostname. One can use a 'topology delimiter' to make this topology information nested. For example : ‘/myrack/myhost’, where ‘/’ is the topology delimiter, ‘myrack’ is the topology identifier, and ‘myhost’ is the individual host. This function only returns the topology information without the hostname. This information can be used when choosing executors for block replication to discern executors from a different rack than a candidate executor, for example. An implementation can choose to use empty strings or None in case topology info is not available. This would imply that all such executors belong to the same rack.

    Definition Classes
    FileBasedTopologyMapper → TopologyMapper

  11. def hashCode(): Int

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    Definition Classes
    AnyRef → Any

  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
    Definition Classes
    Logging

  13. final def isInstanceOf[T0]: Boolean

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    Any

  14. def isTraceEnabled(): Boolean

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    Attributes
    protected
    Definition Classes
    Logging

  15. def log: Logger

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    Attributes
    protected
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    Logging

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

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    Attributes
    protected
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    Logging

  17. def logDebug(msg: ⇒ String): Unit

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    protected
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    Logging

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

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    Logging

  19. def logError(msg: ⇒ String): Unit

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    protected
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    Logging

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

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    Attributes
    protected
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    Logging

  21. def logInfo(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging

  22. def logName: String

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    protected
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    Logging

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

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    Attributes
    protected
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    Logging

  24. def logTrace(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging

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

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    protected
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    Logging

  26. def logWarning(msg: ⇒ String): Unit

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    Attributes
    protected
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    Logging

  27. final def ne(arg0: AnyRef): Boolean

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    Definition Classes
    AnyRef

  28. final def notify(): Unit

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    Definition Classes
    AnyRef

  29. final def notifyAll(): Unit

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    Definition Classes
    AnyRef

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

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    Definition Classes
    AnyRef

  31. def toString(): String

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    Definition Classes
    AnyRef → Any

  32. val topologyFile: Option[String]

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  33. val topologyMap: Map[String, String]

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  34. final def wait(): Unit

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    Definition Classes
    AnyRef
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    @throws( ... )

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

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    @throws( ... )

  36. final def wait(arg0: Long): Unit

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    @throws( ... )

Inherited from Logging

Inherited from TopologyMapper

Inherited from AnyRef

Inherited from Any

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