c

org.apache.spark.network.shuffle

BlockStoreClient

abstract class BlockStoreClient extends Closeable

Provides an interface for reading both shuffle files and RDD blocks, either from an Executor or external service.

Linear Supertypes
Closeable, AutoCloseable, AnyRef, Any
Known Subclasses
ExternalBlockStoreClient
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Instance Constructors

  1. new BlockStoreClient()

Abstract Value Members

  1. abstract def close(): Unit
    Definition Classes
    Closeable → AutoCloseable
    Annotations
    @throws( classOf[java.io.IOException] )
  2. abstract def fetchBlocks(host: String, port: Int, execId: String, blockIds: Array[String], listener: BlockFetchingListener, downloadFileManager: DownloadFileManager): Unit

    Fetch a sequence of blocks from a remote node asynchronously,

    Fetch a sequence of blocks from a remote node asynchronously,

    Note that this API takes a sequence so the implementation can batch requests, and does not return a future so the underlying implementation can invoke onBlockFetchSuccess as soon as the data of a block is fetched, rather than waiting for all blocks to be fetched.

    host

    the host of the remote node.

    port

    the port of the remote node.

    execId

    the executor id.

    blockIds

    block ids to fetch.

    listener

    the listener to receive block fetching status.

    downloadFileManager

    DownloadFileManager to create and clean temp files. If it's not null, the remote blocks will be streamed into temp shuffle files to reduce the memory usage, otherwise, they will be kept in memory.

Concrete 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
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  4. final def asInstanceOf[T0]: T0
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  5. def clone(): AnyRef
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    protected[lang]
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    @throws( ... ) @native()
  6. final def eq(arg0: AnyRef): Boolean
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  7. def equals(arg0: Any): Boolean
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  8. def finalize(): Unit
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    @throws( classOf[java.lang.Throwable] )
  9. final def getClass(): Class[_]
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    @native()
  10. def hashCode(): Int
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    @native()
  11. final def isInstanceOf[T0]: Boolean
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  12. final def ne(arg0: AnyRef): Boolean
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  13. final def notify(): Unit
    Definition Classes
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    @native()
  14. final def notifyAll(): Unit
    Definition Classes
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    @native()
  15. def shuffleMetrics(): MetricSet

    Get the shuffle MetricsSet from BlockStoreClient, this will be used in MetricsSystem to get the Shuffle related metrics.

  16. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
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  17. def toString(): String
    Definition Classes
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  18. final def wait(): Unit
    Definition Classes
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    @throws( ... )
  19. final def wait(arg0: Long, arg1: Int): Unit
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    @throws( ... )
  20. final def wait(arg0: Long): Unit
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    @throws( ... ) @native()

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