shark.tachyon

TachyonStorageClient

class TachyonStorageClient extends OffHeapStorageClient with LogHelper

Enables caching of Shark tables in native column-oriented format into Tachyon.

The directory structure for a given table in Tachyon looks like: Data: warehouse/database.table/_defaultkey/insert_#/col_#/part_# Metadata: warehouse/database.table/_defaultkey/insert_#/.meta where:

Note that "_defaultkey" is the name of the Hive Partition for a non-partitioned table. If the table is partitioned, it will be replaced by each "hivePartitionKey".

Linear Supertypes
LogHelper, Logging, OffHeapStorageClient, AnyRef, Any
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Inherited
  1. TachyonStorageClient
  2. LogHelper
  3. Logging
  4. OffHeapStorageClient
  5. AnyRef
  6. Any
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Instance Constructors

  1. new TachyonStorageClient(master: String, warehousePath: String)

Value Members

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

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  3. final def ##(): Int

    Definition Classes
    AnyRef → Any

  4. final def ==(arg0: AnyRef): Boolean

    Definition Classes
    AnyRef

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

    Definition Classes
    Any

  6. final def asInstanceOf[T0]: T0

    Definition Classes
    Any

  7. def clone(): AnyRef

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

  8. def createTablePartition(tableKey: String, hivePartitionKeyOpt: Option[String]): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  9. def createTablePartitionWriter(tableKey: String, hivePartitionKey: Option[String], numColumns: Int): TachyonOffHeapTableWriter

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  10. def dropTable(tableKey: String): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  11. def dropTablePartition(tableKey: String, hivePartitionKey: Option[String]): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

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

    Definition Classes
    AnyRef

  13. def equals(arg0: Any): Boolean

    Definition Classes
    AnyRef → Any

  14. def errStream(): PrintStream

    Definition Classes
    LogHelper

  15. def finalize(): Unit

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

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

    Definition Classes
    AnyRef → Any

  17. def hashCode(): Int

    Definition Classes
    AnyRef → Any

  18. final def isInstanceOf[T0]: Boolean

    Definition Classes
    Any

  19. def isTraceEnabled(): Boolean

    Attributes
    protected
    Definition Classes
    Logging

  20. def log: Logger

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  23. def logError(msg: String, exception: Throwable): Unit

    Definition Classes
    LogHelper

  24. def logError(msg: String, detail: String): Unit

    Definition Classes
    LogHelper

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

    Definition Classes
    LogHelper → Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

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

    Attributes
    protected
    Definition Classes
    Logging

  33. val master: String

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

    Definition Classes
    AnyRef

  35. final def notify(): Unit

    Definition Classes
    AnyRef

  36. final def notifyAll(): Unit

    Definition Classes
    AnyRef

  37. def outStream(): PrintStream

    Definition Classes
    LogHelper

  38. def readTablePartition(tableKey: String, hivePartitionKey: Option[String], columnsUsed: BitSet, pruningFn: (RDD[TablePartition], Map[Int, TablePartitionStats]) ⇒ RDD[_]): RDD[_]

    Reads a particular Hive partition (or whole table if non-partitioned) into a single RDD.

    Reads a particular Hive partition (or whole table if non-partitioned) into a single RDD. Since each insert is written to its own directory, we need to reconstruct this RDD by reading across all of these insert directories. We thus column- and row-prune our data before producing the union to avoid data transfer.

    columnsUsed

    Indicates which columns are needed, to avoid loading extra data.

    pruningFn

    Used for pruning rows.

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  39. def renameTable(oldTableKey: String, newTableKey: String): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

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

    Definition Classes
    AnyRef

  41. def tableExists(tableKey: String): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  42. def tablePartitionExists(tableKey: String, hivePartitionKey: Option[String]): Boolean

    Definition Classes
    TachyonStorageClient → OffHeapStorageClient

  43. val tfs: TachyonFS

  44. def toString(): String

    Definition Classes
    AnyRef → Any

  45. final def wait(): Unit

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

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

    Definition Classes
    AnyRef
    Annotations
    @throws( ... )

  48. val warehousePath: String

Inherited from LogHelper

Inherited from Logging

Inherited from OffHeapStorageClient

Inherited from AnyRef

Inherited from Any

Ungrouped