ajantha-bhat commented on a change in pull request #3538: [CARBONDATA-3637] Optimize insert into flow URL: https://github.com/apache/carbondata/pull/3538#discussion_r376339989
########## File path: integration/spark-common/src/main/scala/org/apache/carbondata/spark/load/DataLoadProcessBuilderOnSpark.scala ########## @@ -179,6 +182,93 @@ object DataLoadProcessBuilderOnSpark { updateLoadStatus(model, partialSuccessAccum) } + def insertDataUsingGlobalSortWithInternalRow(sparkSession: SparkSession, + scanResultRDD : RDD[InternalRow], + model: CarbonLoadModel, + hadoopConf: Configuration): Array[(String, (LoadMetadataDetails, ExecutionErrors))] = { + val originRDD = scanResultRDD + + val sc = sparkSession.sparkContext + val modelBroadcast = sc.broadcast(model) + val partialSuccessAccum = sc.longAccumulator("Partial Success Accumulator") + val sortStepRowCounter = sc.longAccumulator("Sort Processor Accumulator") + val writeStepRowCounter = sc.longAccumulator("Write Processor Accumulator") + + hadoopConf + .set(CarbonCommonConstants.CARBON_WRITTEN_BY_APPNAME, sparkSession.sparkContext.appName) + + val conf = SparkSQLUtil.broadCastHadoopConf(sc, hadoopConf) + val configuration = DataLoadProcessBuilder.createConfiguration(model) + + // 1. Convert internalRow to object array + val fields = Util + .convertToSparkSchemaFromColumnSchema(model.getCarbonDataLoadSchema.getCarbonTable, true) + .fields + .toSeq + + val dataTypes = fields.map(field => field.dataType) + val map: mutable.Map[String, GenericDataType[_]] = mutable.Map[String, GenericDataType[_]]() + CommonUtil.convertComplexDataType(map, configuration) + val rdd = originRDD.map { internalRow => + CommonUtil.getObjectArrayFromInternalRowAndConvertComplexTypeForGlobalSort(internalRow, + fields, + map) + } + + // 2. sort + var numPartitions = CarbonDataProcessorUtil.getGlobalSortPartitions( + configuration.getDataLoadProperty(CarbonCommonConstants.LOAD_GLOBAL_SORT_PARTITIONS)) + if (numPartitions <= 0) { + numPartitions = originRDD.partitions.length + } + // Because if the number of partitions greater than 1, there will be action operator + // (sample) in + // sortBy operator. So here we cache the rdd to avoid do input and convert again. + if (numPartitions > 1) { + rdd.persist(StorageLevel.fromString( + CarbonProperties.getInstance().getGlobalSortRddStorageLevel())) + } + val sortColumnsLength = model.getCarbonDataLoadSchema.getCarbonTable.getSortColumns.size() + val sortColumnDataTypes = dataTypes.take(sortColumnsLength) + val rowComparator = GlobalSortHelper.generateRowComparator(sortColumnDataTypes) + val sortRDD = rdd.sortBy(x => getKey(x, sortColumnsLength, sortColumnDataTypes), Review comment: ok ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org With regards, Apache Git Services