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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    AnyRef → Any
  4. final def asInstanceOf[T0]: T0

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    Any
  5. def clone(): AnyRef

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    Attributes
    protected[java.lang]
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    AnyRef
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    @throws( ... )
  6. final def eq(arg0: AnyRef): Boolean

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    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]
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    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]

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    Definition Classes
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  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
    FileBasedTopologyMapperTopologyMapper
  11. def hashCode(): Int

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    Definition Classes
    AnyRef → Any
  12. def initializeLogIfNecessary(isInterpreter: Boolean): Unit

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    Attributes
    protected
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    Logging
  13. final def isInstanceOf[T0]: Boolean

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    Any
  14. def isTraceEnabled(): Boolean

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    Attributes
    protected
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    Logging
  15. def log: Logger

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

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

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

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

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    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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    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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    AnyRef
  29. final def notifyAll(): Unit

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    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
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  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
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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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Inherited from Logging

Inherited from TopologyMapper

Inherited from AnyRef

Inherited from Any

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