linliu-code commented on code in PR #17601:
URL: https://github.com/apache/hudi/pull/17601#discussion_r2738836321
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hudi-client/hudi-spark-client/src/main/scala/org/apache/spark/HoodieSparkKryoRegistrar.scala:
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@@ -93,6 +93,8 @@ object HoodieSparkKryoRegistrar {
private val KRYO_USER_REGISTRATORS = "spark.kryo.registrator"
def register(conf: SparkConf): SparkConf = {
- conf.set(KRYO_USER_REGISTRATORS,
Seq(classOf[HoodieSparkKryoRegistrar].getName).mkString(","))
+ // Use class name directly to avoid Scala collection binary compatibility
issues
+ // when compiled with Scala 2.13 but running with Spark 3.5 (Scala 2.12)
+ conf.set(KRYO_USER_REGISTRATORS, classOf[HoodieSparkKryoRegistrar].getName)
Review Comment:
We do have run scala 2.13 in the GH CI.
<img width="827" height="114" alt="image"
src="https://github.com/user-attachments/assets/d273d442-bbae-49a5-93fe-607c9106420c";
/>
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