Packages

class ParquetPartitionReader extends FilePartitionReaderBase with ParquetPartitionReaderBase

A PartitionReader that reads a Parquet file split on the GPU.

Efficiently reading a Parquet split on the GPU requires re-constructing the Parquet file in memory that contains just the column chunks that are needed. This avoids sending unnecessary data to the GPU and saves GPU memory.

Linear Supertypes
ParquetPartitionReaderBase, MultiFileReaderFunctions, FilePartitionReaderBase, Arm, ScanWithMetrics, Logging, PartitionReader[ColumnarBatch], Closeable, AutoCloseable, AnyRef, Any
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Inherited
  1. ParquetPartitionReader
  2. ParquetPartitionReaderBase
  3. MultiFileReaderFunctions
  4. FilePartitionReaderBase
  5. Arm
  6. ScanWithMetrics
  7. Logging
  8. PartitionReader
  9. Closeable
  10. AutoCloseable
  11. AnyRef
  12. Any
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Visibility
  1. Public
  2. All

Instance Constructors

  1. new ParquetPartitionReader(conf: Configuration, split: PartitionedFile, filePath: Path, clippedBlocks: Seq[BlockMetaData], clippedParquetSchema: MessageType, isSchemaCaseSensitive: Boolean, readDataSchema: StructType, debugDumpPrefix: String, maxReadBatchSizeRows: Integer, maxReadBatchSizeBytes: Long, execMetrics: Map[String, GpuMetric], isCorrectedRebaseMode: Boolean)

    conf

    the Hadoop configuration

    split

    the file split to read

    filePath

    the path to the Parquet file

    clippedBlocks

    the block metadata from the original Parquet file that has been clipped to only contain the column chunks to be read

    clippedParquetSchema

    the Parquet schema from the original Parquet file that has been clipped to contain only the columns to be read

    readDataSchema

    the Spark schema describing what will be read

    debugDumpPrefix

    a path prefix to use for dumping the fabricated Parquet data or null

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
    AnyRef → Any
  4. def addPartitionValues(batch: Option[ColumnarBatch], inPartitionValues: InternalRow, partitionSchema: StructType): Option[ColumnarBatch]
    Attributes
    protected
    Definition Classes
    MultiFileReaderFunctions
  5. def areNamesEquiv(groups: GroupType, index: Int, otherName: String, isCaseSensitive: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  6. final def asInstanceOf[T0]: T0
    Definition Classes
    Any
  7. var batch: Option[ColumnarBatch]
    Attributes
    protected
    Definition Classes
    FilePartitionReaderBase
  8. def calculateParquetFooterSize(currentChunkedBlocks: Seq[BlockMetaData], schema: MessageType): Long
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  9. def calculateParquetOutputSize(currentChunkedBlocks: Seq[BlockMetaData], schema: MessageType, handleCoalesceFiles: Boolean): Long
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  10. def clone(): AnyRef
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  11. def close(): Unit
    Definition Classes
    FilePartitionReaderBase → Closeable → AutoCloseable
  12. def closeOnExcept[T <: AutoCloseable, V](r: ArrayBuffer[T])(block: (ArrayBuffer[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  13. def closeOnExcept[T <: AutoCloseable, V](r: Array[T])(block: (Array[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  14. def closeOnExcept[T <: AutoCloseable, V](r: Seq[T])(block: (Seq[T]) ⇒ V): V

    Executes the provided code block, closing the resources only if an exception occurs

    Executes the provided code block, closing the resources only if an exception occurs

    Definition Classes
    Arm
  15. def closeOnExcept[T <: AutoCloseable, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block, closing the resource only if an exception occurs

    Executes the provided code block, closing the resource only if an exception occurs

    Definition Classes
    Arm
  16. val conf: Configuration
    Definition Classes
    ParquetPartitionReader → ParquetPartitionReaderBase
  17. def copyBlocksData(in: FSDataInputStream, out: HostMemoryOutputStream, blocks: Seq[BlockMetaData], realStartOffset: Long): Seq[BlockMetaData]

    Copies the data corresponding to the clipped blocks in the original file and compute the block metadata for the output.

    Copies the data corresponding to the clipped blocks in the original file and compute the block metadata for the output. The output blocks will contain the same column chunk metadata but with the file offsets updated to reflect the new position of the column data as written to the output.

    in

    the input stream for the original Parquet file

    out

    the output stream to receive the data

    returns

    updated block metadata corresponding to the output

    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  18. val copyBufferSize: Int
    Definition Classes
    ParquetPartitionReaderBase
  19. def copyDataRange(range: CopyRange, in: FSDataInputStream, out: OutputStream, copyBuffer: Array[Byte]): Unit
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  20. def dumpDataToFile(hmb: HostMemoryBuffer, dataLength: Long, splits: Array[PartitionedFile], debugDumpPrefix: Option[String] = None, format: Option[String] = None): Unit

    Dump the data from HostMemoryBuffer to a file named by debugDumpPrefix + random + format

    Dump the data from HostMemoryBuffer to a file named by debugDumpPrefix + random + format

    hmb

    host data to be dumped

    dataLength

    data size

    splits

    PartitionedFile to be handled

    debugDumpPrefix

    file name prefix, if it is None, will not dump

    format

    file name suffix, if it is None, will not dump

    Attributes
    protected
    Definition Classes
    FilePartitionReaderBase
  21. final def eq(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  22. def equals(arg0: Any): Boolean
    Definition Classes
    AnyRef → Any
  23. def evolveSchemaIfNeededAndClose(inputTable: Table, filePath: String, clippedSchema: MessageType): Table
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  24. def fileSystemBytesRead(): Long
    Attributes
    protected
    Definition Classes
    MultiFileReaderFunctions
  25. def finalize(): Unit
    Attributes
    protected[java.lang]
    Definition Classes
    AnyRef
    Annotations
    @throws( classOf[java.lang.Throwable] )
  26. def freeOnExcept[T <: RapidsBuffer, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block, freeing the RapidsBuffer only if an exception occurs

    Executes the provided code block, freeing the RapidsBuffer only if an exception occurs

    Definition Classes
    Arm
  27. def get(): ColumnarBatch
    Definition Classes
    FilePartitionReaderBase → PartitionReader
  28. final def getClass(): Class[_]
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  29. def getPrecisionsList(fields: Seq[Type]): Seq[Int]
    Definition Classes
    ParquetPartitionReaderBase
  30. def hashCode(): Int
    Definition Classes
    AnyRef → Any
    Annotations
    @native()
  31. def initializeLogIfNecessary(isInterpreter: Boolean, silent: Boolean): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  32. def initializeLogIfNecessary(isInterpreter: Boolean): Unit
    Attributes
    protected
    Definition Classes
    Logging
  33. var isDone: Boolean
    Attributes
    protected
    Definition Classes
    FilePartitionReaderBase
  34. final def isInstanceOf[T0]: Boolean
    Definition Classes
    Any
  35. val isSchemaCaseSensitive: Boolean
    Definition Classes
    ParquetPartitionReader → ParquetPartitionReaderBase
  36. def isTraceEnabled(): Boolean
    Attributes
    protected
    Definition Classes
    Logging
  37. def log: Logger
    Attributes
    protected
    Definition Classes
    Logging
  38. def logDebug(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  39. def logDebug(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  40. def logError(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  41. def logError(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  42. def logInfo(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  43. def logInfo(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  44. def logName: String
    Attributes
    protected
    Definition Classes
    Logging
  45. def logTrace(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  46. def logTrace(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  47. def logWarning(msg: ⇒ String, throwable: Throwable): Unit
    Attributes
    protected
    Definition Classes
    Logging
  48. def logWarning(msg: ⇒ String): Unit
    Attributes
    protected
    Definition Classes
    Logging
  49. var maxDeviceMemory: Long
    Attributes
    protected
    Definition Classes
    FilePartitionReaderBase
  50. val metrics: Map[String, GpuMetric]
    Definition Classes
    ScanWithMetrics
  51. final def ne(arg0: AnyRef): Boolean
    Definition Classes
    AnyRef
  52. def next(): Boolean
    Definition Classes
    ParquetPartitionReader → PartitionReader
  53. final def notify(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  54. final def notifyAll(): Unit
    Definition Classes
    AnyRef
    Annotations
    @native()
  55. def populateCurrentBlockChunk(blockIter: BufferedIterator[BlockMetaData], maxReadBatchSizeRows: Int, maxReadBatchSizeBytes: Long): Seq[BlockMetaData]
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  56. val readDataSchema: StructType
    Definition Classes
    ParquetPartitionReader → ParquetPartitionReaderBase
  57. def readPartFile(blocks: Seq[BlockMetaData], clippedSchema: MessageType, filePath: Path): (HostMemoryBuffer, Long)
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase
  58. final def synchronized[T0](arg0: ⇒ T0): T0
    Definition Classes
    AnyRef
  59. def toString(): String
    Definition Classes
    AnyRef → Any
  60. final def wait(): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  61. final def wait(arg0: Long, arg1: Int): Unit
    Definition Classes
    AnyRef
    Annotations
    @throws( ... )
  62. final def wait(arg0: Long): Unit
    Definition Classes
    AnyRef
    Annotations
    @native() @throws( ... )
  63. def withResource[T <: AutoCloseable, V](r: ArrayBuffer[T])(block: (ArrayBuffer[T]) ⇒ V): V

    Executes the provided code block and then closes the array buffer of resources

    Executes the provided code block and then closes the array buffer of resources

    Definition Classes
    Arm
  64. def withResource[T <: AutoCloseable, V](r: Array[T])(block: (Array[T]) ⇒ V): V

    Executes the provided code block and then closes the array of resources

    Executes the provided code block and then closes the array of resources

    Definition Classes
    Arm
  65. def withResource[T <: AutoCloseable, V](r: Seq[T])(block: (Seq[T]) ⇒ V): V

    Executes the provided code block and then closes the sequence of resources

    Executes the provided code block and then closes the sequence of resources

    Definition Classes
    Arm
  66. def withResource[T <: AutoCloseable, V](r: Option[T])(block: (Option[T]) ⇒ V): V

    Executes the provided code block and then closes the Option[resource]

    Executes the provided code block and then closes the Option[resource]

    Definition Classes
    Arm
  67. def withResource[T <: AutoCloseable, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block and then closes the resource

    Executes the provided code block and then closes the resource

    Definition Classes
    Arm
  68. def withResourceIfAllowed[T, V](r: T)(block: (T) ⇒ V): V

    Executes the provided code block and then closes the value if it is AutoCloseable

    Executes the provided code block and then closes the value if it is AutoCloseable

    Definition Classes
    Arm
  69. def writeFooter(out: OutputStream, blocks: Seq[BlockMetaData], schema: MessageType): Unit
    Attributes
    protected
    Definition Classes
    ParquetPartitionReaderBase

Inherited from ParquetPartitionReaderBase

Inherited from MultiFileReaderFunctions

Inherited from FilePartitionReaderBase

Inherited from Arm

Inherited from ScanWithMetrics

Inherited from Logging

Inherited from PartitionReader[ColumnarBatch]

Inherited from Closeable

Inherited from AutoCloseable

Inherited from AnyRef

Inherited from Any

Ungrouped