Curious, what was the issue ? - Mridul
On Sun, Feb 23, 2014 at 11:41 PM, Nan Zhu <zhunanmcg...@gmail.com> wrote: > OK, I know where I was wrong > > > Best, > > -- > Nan Zhu > Sent with Sparrow (http://www.sparrowmailapp.com/?sig) > > > On Sunday, February 23, 2014 at 12:50 PM, Nan Zhu wrote: > >> String, it should be get the following helper function >> >> private[spark] def getKeyClass() = implicitly[ClassTag[K]].runtimeClass >> >> private[spark] def getValueClass() = implicitly[ClassTag[V]].runtimeClass >> >> and this is what I run >> >> scala> val a = sc.textFile("/Users/nanzhu/code/incubator-spark/LICENSE", >> 2).map(line => ("a", "b")) >> >> scala> a.saveAsNewAPIHadoopFile("/Users/nanzhu/code/output_rdd") >> java.lang.InstantiationException >> at >> sun.reflect.InstantiationExceptionConstructorAccessorImpl.newInstance(InstantiationExceptionConstructorAccessorImpl.java:48) >> at java.lang.reflect.Constructor.newInstance(Constructor.java:526) >> at java.lang.Class.newInstance(Class.java:374) >> at >> org.apache.spark.rdd.PairRDDFunctions.saveAsNewAPIHadoopFile(PairRDDFunctions.scala:632) >> at >> org.apache.spark.rdd.PairRDDFunctions.saveAsNewAPIHadoopFile(PairRDDFunctions.scala:590) >> at $iwC$$iwC$$iwC$$iwC.<init>(<console>:15) >> at $iwC$$iwC$$iwC.<init>(<console>:20) >> at $iwC$$iwC.<init>(<console>:22) >> at $iwC.<init>(<console>:24) >> at <init>(<console>:26) >> at .<init>(<console>:30) >> at .<clinit>(<console>) >> at .<init>(<console>:7) >> at .<clinit>(<console>) >> at $print(<console>) >> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) >> at >> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) >> at >> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) >> at java.lang.reflect.Method.invoke(Method.java:606) >> at org.apache.spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:774) >> at org.apache.spark.repl.SparkIMain$Request.loadAndRun(SparkIMain.scala:1042) >> at org.apache.spark.repl.SparkIMain.loadAndRunReq$1(SparkIMain.scala:611) >> at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:642) >> at org.apache.spark.repl.SparkIMain.interpret(SparkIMain.scala:606) >> at org.apache.spark.repl.SparkILoop.reallyInterpret$1(SparkILoop.scala:790) >> at >> org.apache.spark.repl.SparkILoop.interpretStartingWith(SparkILoop.scala:835) >> at org.apache.spark.repl.SparkILoop.command(SparkILoop.scala:747) >> at org.apache.spark.repl.SparkILoop.processLine$1(SparkILoop.scala:595) >> at org.apache.spark.repl.SparkILoop.innerLoop$1(SparkILoop.scala:602) >> at org.apache.spark.repl.SparkILoop.loop(SparkILoop.scala:605) >> at >> org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply$mcZ$sp(SparkILoop.scala:928) >> at >> org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply(SparkILoop.scala:878) >> at >> org.apache.spark.repl.SparkILoop$$anonfun$process$1.apply(SparkILoop.scala:878) >> at >> scala.tools.nsc.util.ScalaClassLoader$.savingContextLoader(ScalaClassLoader.scala:135) >> at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:878) >> at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:970) >> at org.apache.spark.repl.Main$.main(Main.scala:31) >> at org.apache.spark.repl.Main.main(Main.scala) >> >> >> >> >> >> >> -- >> Nan Zhu >> >> >> On Sunday, February 23, 2014 at 11:06 AM, Nick Pentreath wrote: >> >> > Hi >> > >> > What KeyClass and ValueClass are you trying to save as the keys/values of >> > your dataset? >> > >> > >> > >> > On Sun, Feb 23, 2014 at 10:48 AM, Nan Zhu <zhunanmcg...@gmail.com >> > (mailto:zhunanmcg...@gmail.com)> wrote: >> > >> > > Hi, all >> > > >> > > I found the weird thing on saveAsNewAPIHadoopFile in >> > > PairRDDFunctions.scala when working on the other issue, >> > > >> > > saveAsNewAPIHadoopFile throws java.lang.InstantiationException all the >> > > time >> > > >> > > I checked the commit history of the file, it seems that the API exists >> > > for >> > > a long time, no one else found this? (that's the reason I'm confusing) >> > > >> > > Best, >> > > >> > > -- >> > > Nan Zhu >> > > >> > >> > >> > >> > >> >> >
