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From Iulian Dragoș <iulian.dra...@typesafe.com>
Subject Re: Error in SparkSQL/Scala IDE
Date Thu, 07 May 2015 08:18:20 GMT
Got it!

I'll open a Jira ticket and PR when I have a working solution.

On Wed, May 6, 2015 at 11:53 PM, Michael Armbrust <michael@databricks.com>
wrote:

> Hi Iulian,
>
> The relevant code is in ScalaReflection
> <https://github.com/apache/spark/blob/master/sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/ScalaReflection.scala>,
> and it would be awesome if you could suggest how to fix this more
> generally. Specifically, this code is also broken when running from SBT:
>
>
> $ build/sbt hive/console
> scala> import implicits._
> import implicits._
>
> scala> Seq((1,2)).toDF("a", "b")
> scala.reflect.internal.MissingRequirementError: class
> org.apache.spark.sql.catalyst.ScalaReflection in JavaMirror with
> java.net.URLClassLoader@752d2e33 of type class java.net.URLClassLoader
> with classpath
> [file:/root/.sbt/boot/scala-2.10.4/lib/jline.jar,file:/root/.sbt/boot/scala-2.10.4/lib/scala-library.jar,file:/root/.sbt/boot/scala-2.10.4/lib/scala-compiler.jar,file:/root/.sbt/boot/scala-2.10.4/lib/jansi.jar,file:/root/.sbt/boot/scala-2.10.4/lib/scala-reflect.jar]
> and parent being xsbt.boot.BootFilteredLoader@625e4591 of type class
> xsbt.boot.BootFilteredLoader with classpath [<unknown>] and parent being
> sun.misc.Launcher$AppClassLoader@1a8c064 of type class
> sun.misc.Launcher$AppClassLoader with classpath
> [file:/root/spark/build/sbt-launch-0.13.7.jar] and parent being
> sun.misc.Launcher$ExtClassLoader@6deee615 of type class
> sun.misc.Launcher$ExtClassLoader with classpath
> [file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/sunjce_provider.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/
> nsns.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/java-atk-wrapper.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/sunpkcs11.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/zipfs.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/localedata.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/icedtea-sound.jar,file:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/ext/libatk-wrapper.so]
> and parent being primordial classloader with boot classpath
> [/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/resources.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rt.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/sunrsasign.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jsse.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jce.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/rhino.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/lib/jfr.jar:/usr/lib/jvm/java-7-openjdk-amd64/jre/classes]
> not found.
>
> Michael
>
> On Wed, May 6, 2015 at 2:12 AM, Iulian Dragoș <iulian.dragos@typesafe.com>
> wrote:
>
>> Hi, I just saw this question. I posted my solution to this stack
>> overflow question.
>> <https://stackoverflow.com/questions/29796928/whats-the-most-efficient-way-to-filter-a-dataframe>
>>
>> Scala reflection can take a classloader when creating a mirror (
>> universe.runtimeMirror(loader)). I can have a look, but I didn’t find
>> much about mirrors in spark-sql.
>>
>> iulian
>> ​
>>
>
>


-- 

--
Iulian Dragos

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