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org.apache.spark.sql.rapids

GpuFileFormatWriter

object GpuFileFormatWriter extends Logging

A helper object for writing columnar data out to a location.

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  1. case class GpuConcurrentOutputWriterSpec(maxWriters: Int, output: Seq[Attribute], batchSize: Long, sortOrder: Seq[SortOrder]) extends Product with Serializable

    Describes how concurrent output writers should be executed.

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  35. def write(sparkSession: SparkSession, plan: SparkPlan, fileFormat: ColumnarFileFormat, committer: FileCommitProtocol, outputSpec: OutputSpec, hadoopConf: Configuration, partitionColumns: Seq[Attribute], bucketSpec: Option[BucketSpec], statsTrackers: Seq[ColumnarWriteJobStatsTracker], options: Map[String, String], useStableSort: Boolean, concurrentWriterPartitionFlushSize: Long, forceHiveHashForBucketing: Boolean = false, numStaticPartitionCols: Int = 0): Set[String]

    Basic work flow of this command is: 1.

    Basic work flow of this command is: 1. Driver side setup, including output committer initialization and data source specific preparation work for the write job to be issued. 2. Issues a write job consists of one or more executor side tasks, each of which writes all rows within an RDD partition. 3. If no exception is thrown in a task, commits that task, otherwise aborts that task; If any exception is thrown during task commitment, also aborts that task. 4. If all tasks are committed, commit the job, otherwise aborts the job; If any exception is thrown during job commitment, also aborts the job. 5. If the job is successfully committed, perform post-commit operations such as processing statistics.

    returns

    The set of all partition paths that were updated during this write job.

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