hvanhovell commented on code in PR #42069:
URL: https://github.com/apache/spark/pull/42069#discussion_r1278217228
##########
core/src/main/scala/org/apache/spark/internal/config/package.scala:
##########
@@ -2547,4 +2547,18 @@ package object config {
.version("3.5.0")
.booleanConf
.createWithDefault(false)
+
+ private[spark] val CONNECT_SCALA_UDF_STUB_CLASSES =
+ ConfigBuilder("spark.connect.scalaUdf.stubClasses")
Review Comment:
`stubPrefixes`?
##########
core/src/main/scala/org/apache/spark/internal/config/package.scala:
##########
@@ -2547,4 +2547,18 @@ package object config {
.version("3.5.0")
.booleanConf
.createWithDefault(false)
+
+ private[spark] val CONNECT_SCALA_UDF_STUB_CLASSES =
+ ConfigBuilder("spark.connect.scalaUdf.stubClasses")
+ .internal()
+ .doc("""
+ |Comma-separated list of binary names of classes/packages that
should be stubbed during
+ |the Scala UDF serde and execution if not found on the server
classpath.
+ |An empty list effectively disables stubbing for all missing classes.
+ |By default, the server stubs classes from the Scala client package.
+ |""".stripMargin)
+ .version("3.5.0")
+ .stringConf
+ .toSequence
+ .createWithDefault("org.apache.spark.sql.connect.client" :: Nil)
Review Comment:
The `StubClassLoader` currently does not support multiple prefixes. Are we
adding this somewhere in the future?
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