viirya commented on code in PR #53232:
URL: https://github.com/apache/spark/pull/53232#discussion_r2567208925
##########
mllib/src/main/scala/org/apache/spark/ml/util/ReadWrite.scala:
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@@ -1142,4 +1143,31 @@ private[spark] object ReadWriteUtils {
spark.read.parquet(path).as[T].collect()
}
}
+
+ def saveDataFrame(path: String, df: DataFrame): Unit = {
+ if (localSavingModeState.get()) {
+ val filePath = Paths.get(path)
+ Files.createDirectories(filePath.getParent)
+
+ df match {
+ case d: org.apache.spark.sql.classic.DataFrame =>
+ ArrowFileReadWrite.save(d, path)
+ case _ => throw new UnsupportedOperationException("Unsupported
dataframe type")
+ }
+ } else {
+ df.write.parquet(path)
+ }
+ }
+
+ def loadDataFrame(path: String, spark: SparkSession): DataFrame = {
+ if (localSavingModeState.get()) {
+ spark match {
+ case s: org.apache.spark.sql.classic.SparkSession =>
+ ArrowFileReadWrite.load(s, path)
+ case _ => throw new UnsupportedOperationException("Unsupported session
type")
Review Comment:
Can we show actual session type in the error?
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