trait ColumnarWriteTaskStatsTracker extends AnyRef
A trait for classes that are capable of collecting statistics on columnar data that's being processed by a single write task in GpuFileFormatDataWriter - i.e. there should be one instance per executor.
newPartition event is only triggered if the relation to be written out is partitioned.
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abstract
def
closeFile(filePath: String): Unit
Process the fact that a file is finished to be written and closed.
Process the fact that a file is finished to be written and closed.
- filePath
Path of the file.
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abstract
def
getFinalStats(taskCommitTime: Long): WriteTaskStats
Returns the final statistics computed so far.
Returns the final statistics computed so far.
- taskCommitTime
Time of committing the task.
- returns
An object of subtype of
org.apache.spark.sql.execution.datasources.WriteTaskStats, to be sent to the driver.
- Note
This may only be called once. Further use of the object may lead to undefined behavior.
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abstract
def
newBatch(batch: ColumnarBatch): Unit
Process a new column batch to update the tracked statistics accordingly.
Process a new column batch to update the tracked statistics accordingly. The batch will be written to the most recently witnessed file (via
newFile).- batch
Current data batch to be processed.
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abstract
def
newFile(filePath: String): Unit
Process the fact that a new file is about to be written.
Process the fact that a new file is about to be written.
- filePath
Path of the file into which future rows will be written.
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abstract
def
newPartition(): Unit
Process the fact that a new partition is about to be written.
Process the fact that a new partition is about to be written. Only triggered when the relation is partitioned by a (non-empty) sequence of columns. NOTE: The partition values are stubbed for now as the original code only updated a count of partitions without examining the values. //@param partitionValues The values that define this new partition.
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