QiangCai commented on a change in pull request #3912:
URL: https://github.com/apache/carbondata/pull/3912#discussion_r514046333
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File path:
integration/spark/src/main/scala/org/apache/carbondata/spark/load/DataLoadProcessBuilderOnSpark.scala
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@@ -143,10 +145,16 @@ object DataLoadProcessBuilderOnSpark {
var numPartitions = CarbonDataProcessorUtil.getGlobalSortPartitions(
configuration.getDataLoadProperty(CarbonCommonConstants.LOAD_GLOBAL_SORT_PARTITIONS))
+
+ // if numPartitions user does not specify and not specified in config then
dynamically calculate
+ if (numPartitions == 0) {
+ numPartitions = Math.ceil(model.getTotalSize.toDouble /
defaultMaxSplitBytes).toInt
+ }
+
+ // after calculation based on size if still zero then take the partition
number
if (numPartitions <= 0) {
numPartitions = convertRDD.partitions.length
Review comment:
numPartitions = Math.min(convertRDD.partitions.length, dynamic partition
number)
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