hvanhovell commented on code in PR #48120:
URL: https://github.com/apache/spark/pull/48120#discussion_r1838121670
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sql/core/src/main/scala/org/apache/spark/sql/SparkSession.scala:
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@@ -842,7 +842,11 @@ object SparkSession extends api.BaseSparkSessionCompanion
with Logging {
/** @inheritdoc */
override def enableHiveSupport(): this.type = synchronized {
if (hiveClassesArePresent) {
+ // TODO(SPARK-50244): We now isolate artifacts added by the `ADD JAR`
command. This will
+ // break an existing Hive use case (one session adds JARs and another
session uses them).
+ // We need to decide whether/how to enable isolation for Hive.
Review Comment:
@xupefei Everyone has Hive on their classpath (because of HMS), so this
effectively disables isolation for all of classic. Can we only disable this for
JDBC?
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