This is probably related to the Scala bug that :cp does not work:
https://issues.scala-lang.org/browse/SI-6502
On Tue, Apr 15, 2014 at 11:21 AM, Walrus theCat <walrusthe...@gmail.com>wrote:
> Actually altering the classpath in the REPL causes the provided
> SparkContext to disappear:
>
> scala> sc.parallelize(List(1,2,3))
> res0: spark.RDD[Int] = ParallelCollectionRDD[0] at parallelize at
> <console>:13
>
> scala> :cp /root
> Added '/root'. Your new classpath is:
>
> ":/root/jars/aspectjrt.jar:/root/jars/aspectjweaver.jar:/root/jars/aws-java-sdk-1.4.5.jar:/root/jars/aws-java-sdk-1.4.5-javadoc.jar:/root/jars/aws-java-sdk-1.4.5-sources.jar:/root/jars/aws-java-sdk-flow-build-tools-1.4.5.jar:/root/jars/commons-codec-1.3.jar:/root/jars/commons-logging-1.1.1.jar:/root/jars/freemarker-2.3.18.jar:/root/jars/httpclient-4.1.1.jar:/root/jars/httpcore-4.1.jar:/root/jars/jackson-core-asl-1.8.7.jar:/root/jars/mail-1.4.3.jar:/root/jars/spring-beans-3.0.7.jar:/root/jars/spring-context-3.0.7.jar:/root/jars/spring-core-3.0.7.jar:/root/jars/stax-1.2.0.jar:/root/jars/stax-api-1.0.1.jar:/root/spark/conf:/root/spark/core/target/scala-2.9.3/classes:/root/spark/core/src/main/resources:/root/spark/repl/target/scala-2.9.3/classes:/root/spark/examples/target/scala-2.9.3/classes:/root/spark/streaming/target/scala-2.9.3/classes:/root/spark/streaming/lib/org/apache/kafka/kafka/0.7.2-spark/*:/root/spark/lib_managed/jars/*:/root/spark/lib_managed/bundles/*:/root/spark/repl/lib/*:/root/spark/bagel/target/scala-2.9.3/classes:/root/spark/python/lib/py4j0.7.jar:/root"
> 14/04/15 18:19:37 INFO server.Server: jetty-7.6.8.v20121106
> 14/04/15 18:19:37 INFO server.AbstractConnector: Started
> SocketConnector@0.0.0.0:48978
> Replaying: sc.parallelize(List(1,2,3))
> <console>:8: error: not found: value sc
> sc.parallelize(List(1,2,3))
>
>
>
> On Mon, Apr 14, 2014 at 7:51 PM, Walrus theCat <walrusthe...@gmail.com>wrote:
>
>> Nevermind -- I'm like 90% sure the problem is that I'm importing stuff
>> that declares a SparkContext as sc. If it's not, I'll report back.
>>
>>
>> On Mon, Apr 14, 2014 at 2:55 PM, Walrus theCat <walrusthe...@gmail.com>wrote:
>>
>>> Hi,
>>>
>>> Using the spark-shell, I can't sc.parallelize to get an RDD.
>>>
>>> Looks like a bug.
>>>
>>> scala> sc.parallelize(Array("a","s","d"))
>>> java.lang.NullPointerException
>>> at <init>(<console>:17)
>>> at <init>(<console>:22)
>>> at <init>(<console>:24)
>>> at <init>(<console>:26)
>>> at <init>(<console>:28)
>>> at <init>(<console>:30)
>>> at <init>(<console>:32)
>>> at <init>(<console>:34)
>>> at <init>(<console>:36)
>>> at .<init>(<console>:40)
>>> at .<clinit>(<console>)
>>> at .<init>(<console>:11)
>>> at .<clinit>(<console>)
>>> at $export(<console>)
>>> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>>> at
>>> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
>>> at
>>> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
>>> at java.lang.reflect.Method.invoke(Method.java:606)
>>> at spark.repl.SparkIMain$ReadEvalPrint.call(SparkIMain.scala:629)
>>> at
>>> spark.repl.SparkIMain$Request$$anonfun$10.apply(SparkIMain.scala:890)
>>> at
>>> scala.tools.nsc.interpreter.Line$$anonfun$1.apply$mcV$sp(Line.scala:43)
>>> at scala.tools.nsc.io.package$$anon$2.run(package.scala:25)
>>> at java.lang.Thread.run(Thread.java:744)
>>>
>>
>>
>
