[CARBONDATA-368]Imporve performance of dataframe loading #278
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QiangCai
changed the title
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Some testcase failed after rebase to master |
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I have fix test case error. |
jackylk
reviewed
Nov 16, 2016
| format: SimpleDateFormat, | ||
| level: Int = 1): String = { | ||
| value == null match { | ||
| case true => serializationNullFormat |
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please rebase |
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Rebase done |
DataLoadPartitionCoalescer concurrently read dataframe
jackylk
reviewed
Nov 29, 2016
| @@ -548,77 +552,53 @@ class DataFrameLoaderRDD[K, V]( | |||
| override protected def getPartitions: Array[Partition] = firstParent[Row].partitions | |||
| } | |||
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| class PartitionIterator(partitionIter: Iterator[DataLoadPartitionWrap[Row]], | |||
| carbonLoadModel: CarbonLoadModel, | |||
| context: TaskContext) extends JavaRddIterator[JavaRddIterator[Array[String]]] { | |||
jackylk
suggested changes
Nov 29, 2016
| @@ -932,7 +942,8 @@ object CarbonDataRDDFactory { | |||
| loadDataFile() | |||
| } | |||
| val newStatusMap = scala.collection.mutable.Map.empty[String, String] | |||
| status.foreach { eachLoadStatus => | |||
| if (status.nonEmpty) { | |||
| status.foreach { eachLoadStatus => | |||
| val state = newStatusMap.get(eachLoadStatus._1) | |||
| } | ||
| return null; | ||
| } | ||
| }; |
Beyyes
pushed a commit
to Beyyes/carbondata
that referenced
this pull request
Jul 12, 2018
Move graf‘s json.template to bootstrap
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support concurrently reading dataframe in CSVInput step
fix bug for reading dataframe in kettle thread
customize DataLoadPartitionCoalescer to repartition input DataFrame without shuffle.