Jean Georges Perrin created SPARK-26146:
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Summary: CSV wouln't be ingested in Spark 2.4.0 with Scala 2.12
Key: SPARK-26146
URL: https://issues.apache.org/jira/browse/SPARK-26146
Project: Spark
Issue Type: Bug
Components: Input/Output
Affects Versions: 2.4.0
Reporter: Jean Georges Perrin
When running a simple CSV ingestion like:{{ }}
{code:java}
// Creates a session on a local master
SparkSession spark = SparkSession.builder()
.appName("CSV to Dataset")
.master("local")
.getOrCreate();
// Reads a CSV file with header, called books.csv, stores it in a dataframe
Dataset<Row> df = spark.read().format("csv")
.option("header", "true")
.load("data/books.csv");
{code}
With Scala 2.12, I get:
{code:java}
Exception in thread "main" java.lang.ArrayIndexOutOfBoundsException: 10582
at
com.thoughtworks.paranamer.BytecodeReadingParanamer$ClassReader.accept(BytecodeReadingParanamer.java:563)
at
com.thoughtworks.paranamer.BytecodeReadingParanamer$ClassReader.access$200(BytecodeReadingParanamer.java:338)
at
com.thoughtworks.paranamer.BytecodeReadingParanamer.lookupParameterNames(BytecodeReadingParanamer.java:103)
at
com.thoughtworks.paranamer.CachingParanamer.lookupParameterNames(CachingParanamer.java:90)
at
com.fasterxml.jackson.module.scala.introspect.BeanIntrospector$.getCtorParams(BeanIntrospector.scala:44)
at
com.fasterxml.jackson.module.scala.introspect.BeanIntrospector$.$anonfun$apply$1(BeanIntrospector.scala:58)
at
com.fasterxml.jackson.module.scala.introspect.BeanIntrospector$.$anonfun$apply$1$adapted(BeanIntrospector.scala:58)
at
scala.collection.TraversableLike.$anonfun$flatMap$1(TraversableLike.scala:240)
...
at
net.jgp.books.sparkWithJava.ch01.CsvToDataframeApp.start(CsvToDataframeApp.java:37)
at
net.jgp.books.sparkWithJava.ch01.CsvToDataframeApp.main(CsvToDataframeApp.java:21)
{code}
Where it works pretty smoothly if I switch back to 2.11.
Full example available at
[https://github.com/jgperrin/net.jgp.books.sparkWithJava.ch01.] You can modify
pom.xml to change easily the Scala version in the property section:
{code:java}
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<java.version>1.8</java.version>
<scala.version>2.11</scala.version>
<spark.version>2.4.0</spark.version>
</properties>{code}
(ps. It's my first bug submission, so I hope I did not mess too much, be
tolerant if I did)
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