You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Angel Faus (JIRA)" <ji...@apache.org> on 2015/07/09 17:21:04 UTC
[jira] [Commented] (SPARK-8465) ScalaReflectionException with
DataFrames in 1.4
[ https://issues.apache.org/jira/browse/SPARK-8465?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14620653#comment-14620653 ]
Angel Faus commented on SPARK-8465:
-----------------------------------
We are seeing a similar error..
{noformat}
import org.apache.spark._
case class CaseClass (
a: String
)
object ErrorCase {
def generate_entry(x: Int): CaseClass = {
return CaseClass("")
}
def main(args: Array[String]) {
val sc = new SparkContext(new SparkConf());
val sqlContext : org.apache.spark.sql.SQLContext = new org.apache.spark.sql.hive.HiveContext(sc);
import sqlContext.implicits._;
println(sc.parallelize(Array(1)).map(generate_entry).toDF().count);
}
}
{noformat}
This will print
{noformat}
Exception in thread "main" scala.reflect.internal.MissingRequirementError: class CaseClass not found.
at scala.reflect.internal.MissingRequirementError$.signal(MissingRequirementError.scala:16)
at scala.reflect.internal.MissingRequirementError$.notFound(MissingRequirementError.scala:17)
at scala.reflect.internal.Mirrors$RootsBase.ensureClassSymbol(Mirrors.scala:90)
at scala.reflect.internal.Mirrors$RootsBase.staticClass(Mirrors.scala:119)
at scala.reflect.internal.Mirrors$RootsBase.staticClass(Mirrors.scala:21)
at ErrorCase$$typecreator1$1.apply(error.scala:16)
at scala.reflect.api.TypeTags$WeakTypeTagImpl.tpe$lzycompute(TypeTags.scala:231)
at scala.reflect.api.TypeTags$WeakTypeTagImpl.tpe(TypeTags.scala:231)
at org.apache.spark.sql.catalyst.ScalaReflection$class.localTypeOf(ScalaReflection.scala:71)
at org.apache.spark.sql.catalyst.ScalaReflection$class.schemaFor(ScalaReflection.scala:59)
at org.apache.spark.sql.catalyst.ScalaReflection$.schemaFor(ScalaReflection.scala:28)
at org.apache.spark.sql.SQLContext.createDataFrame(SQLContext.scala:410)
at org.apache.spark.sql.SQLContext$implicits$.rddToDataFrameHolder(SQLContext.scala:335)
at ErrorCase$.main(error.scala:16)
at ErrorCase.main(error.scala)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:606)
at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:664)
{noformat}
This works allright in spark 1.3
> ScalaReflectionException with DataFrames in 1.4
> -----------------------------------------------
>
> Key: SPARK-8465
> URL: https://issues.apache.org/jira/browse/SPARK-8465
> Project: Spark
> Issue Type: Bug
> Components: SQL
> Affects Versions: 1.4.0
> Reporter: Chad Urso McDaniel
>
> We are seeing class exceptions when converting to a DataFrame.
> Anyone out there with some suggestions on what is going on?
> Our original intention was to use a HiveContext to write ORC and we saw the error there and have narrowed it down.
> This is an example of our code and a commented out line showing basic non-dataframe usage is ok:
> ---
> def saveVisitsAsOrcFile(sqlContext: SQLContext, rdd: RDD[Visit], outputDir: String) {
> // works!: println("rdd count: " + rdd.map(_.clicks.size).sum)
> import sqlContext.implicits._
> // scala.ScalaReflectionException: class com.rr.data.Visit
> print("rdd.toDF.count:" + rdd
> .toDF()
> .count())
> ---
> This runs locally, but when using spark-submit with 1.4 we get:
> Exception in thread "main" scala.ScalaReflectionException: class com.rr.data.Visit in JavaMirror with sun.misc.Launcher$AppClassLoader@5c647e05 of type class sun.misc.Launcher$AppClassLoader with classpath [file:/home/candiru/tewfik/,file:/home/candiru/tewfik/spark-1.4.0-bin-tewfik-spark/conf/,file:/home/candiru/tewfik/spark-1.4.0-bin-tewfik-spark/lib/spark-assembly-1.4.0-hadoop2.0.0-mr1-cdh4.2.0.jar,file:/home/candiru/tewfik/spark-1.4.0-bin-tewfik-spark/lib/datanucleus-api-jdo-3.2.6.jar,file:/home/candiru/tewfik/spark-1.4.0-bin-tewfik-spark/lib/datanucleus-core-3.2.10.jar,file:/home/candiru/tewfik/spark-1.4.0-bin-tewfik-spark/lib/datanucleus-rdbms-3.2.9.jar] and parent being sun.misc.Launcher$ExtClassLoader@1c79d093 of type class sun.misc.Launcher$ExtClassLoader with classpath [file:/usr/java/jdk1.8.0_05/jre/lib/ext/cldrdata.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/dnsns.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/jfxrt.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/localedata.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/nashorn.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/sunec.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/sunjce_provider.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/sunpkcs11.jar,file:/usr/java/jdk1.8.0_05/jre/lib/ext/zipfs.jar] and parent being primordial classloader with boot classpath [/usr/java/jdk1.8.0_05/jre/lib/resources.jar:/usr/java/jdk1.8.0_05/jre/lib/rt.jar:/usr/java/jdk1.8.0_05/jre/lib/sunrsasign.jar:/usr/java/jdk1.8.0_05/jre/lib/jsse.jar:/usr/java/jdk1.8.0_05/jre/lib/jce.jar:/usr/java/jdk1.8.0_05/jre/lib/charsets.jar:/usr/java/jdk1.8.0_05/jre/lib/jfr.jar:/usr/java/jdk1.8.0_05/jre/classes] not found.
> at scala.reflect.internal.Mirrors$RootsBase.staticClass(Mirrors.scala:123)
> at scala.reflect.internal.Mirrors$RootsBase.staticClass(Mirrors.scala:22)
> at com.rr.data.visits.orc.OrcReadWrite$$typecreator2$1.apply(OrcReadWrite.scala:36)
> at scala.reflect.api.TypeTags$WeakTypeTagImpl.tpe$lzycompute(TypeTags.scala:232)
> at scala.reflect.api.TypeTags$WeakTypeTagImpl.tpe(TypeTags.scala:232)
> at org.apache.spark.sql.catalyst.ScalaReflection$class.localTypeOf(ScalaReflection.scala:71)
> at org.apache.spark.sql.catalyst.ScalaReflection$class.schemaFor(ScalaReflection.scala:59)
> at org.apache.spark.sql.catalyst.ScalaReflection$.schemaFor(ScalaReflection.scala:28)
> at org.apache.spark.sql.SQLContext.createDataFrame(SQLContext.scala:410)
> at org.apache.spark.sql.SQLContext$implicits$.rddToDataFrameHolder(SQLContext.scala:335)
> at com.rr.data.visits.orc.OrcReadWrite$.saveVisitsAsOrcFile(OrcReadWrite.scala:36)
> at com.rr.data.visits.VisitSequencerRunner$.main(VisitSequencerRunner.scala:43)
> at com.rr.data.visits.VisitSequencerRunner.main(VisitSequencerRunner.scala)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:483)
> at org.apache.spark.deploy.SparkSubmit$.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:664)
> at org.apache.spark.deploy.SparkSubmit$.doRunMain$1(SparkSubmit.scala:169)
> at org.apache.spark.deploy.SparkSubmit$.submit(SparkSubmit.scala:192)
> at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:111)
> at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
> We're using the normal command line:
> ---
> bin/spark-submit --properties-file ./spark-submit.conf --class com.rr.data.visits.VisitSequencerRunner ./mvt-master-SNAPSHOT-jar-with-dependencies.jar
> ---
> Our jar contains both com.rr.data.visits.orc.OrcReadWrite (which you can see in the stack trace) and the unfound com.rr.data.Visit.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org