Github user wangyum commented on the issue: https://github.com/apache/spark/pull/22372 I did a simple test for 2.9.6. It works well. But that pr for 3.0. It means that a simple test on branch 2.4 will fail: ```scala scala> spark.range(10).write.parquet("/tmp/spark/parquet") com.fasterxml.jackson.databind.JsonMappingException: Incompatible Jackson version: 2.7.8 at com.fasterxml.jackson.module.scala.JacksonModule$class.setupModule(JacksonModule.scala:64) at com.fasterxml.jackson.module.scala.DefaultScalaModule.setupModule(DefaultScalaModule.scala:19) at com.fasterxml.jackson.databind.ObjectMapper.registerModule(ObjectMapper.java:730) at org.apache.spark.rdd.RDDOperationScope$.<init>(RDDOperationScope.scala:82) at org.apache.spark.rdd.RDDOperationScope$.<clinit>(RDDOperationScope.scala) ``` How about merge this pr to branch-2.4 only?
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