Sean Zhong created SPARK-17374:
----------------------------------
Summary: Improves the error message when fails to parse some json
file lines in DataFrameReader
Key: SPARK-17374
URL: https://issues.apache.org/jira/browse/SPARK-17374
Project: Spark
Issue Type: Bug
Components: SQL
Reporter: Sean Zhong
Demo case:
We silently replace corrupted line with null without any error message.
{code}
import org.apache.spark.sql.types._
val corruptRecords = spark.sparkContext.parallelize("""{"a":{, b:3}""" :: Nil)
val schema = StructType(StructField("a", StringType, true) :: Nil)
val jsonDF = spark.read.schema(schema).json(corruptRecords)
scala> jsonDF.show
+----+
| a|
+----+
|null|
+----+
{code}
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