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 <mich...@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.dra...@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 ------ Reactive Apps on the JVM www.typesafe.com
