我已經安裝Zeppelin 0.7.1
。當我試圖執行示例星火計劃(這是可利用的Zeppelin Tutorial
筆記本電腦),我收到以下錯誤在Zeppelin中運行Spark代碼時發生NullPointerException 0.7.1
java.lang.NullPointerException
at org.apache.zeppelin.spark.Utils.invokeMethod(Utils.java:38)
at org.apache.zeppelin.spark.Utils.invokeMethod(Utils.java:33)
at org.apache.zeppelin.spark.SparkInterpreter.createSparkContext_2(SparkInterpreter.java:391)
at org.apache.zeppelin.spark.SparkInterpreter.createSparkContext(SparkInterpreter.java:380)
at org.apache.zeppelin.spark.SparkInterpreter.getSparkContext(SparkInterpreter.java:146)
at org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:828)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:70)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:483)
at org.apache.zeppelin.scheduler.Job.run(Job.java:175)
at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:139)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
我也有設置的配置文件(zeppelin-env.sh
)指向我的星火安裝& Hadoop配置目錄
export SPARK_HOME="/${homedir}/sk"
export HADOOP_CONF_DIR="/${homedir}/hp/etc/hadoop"
我使用的Spark版本是2.1.0 & Hadoop是2.7.3
我也是使用默認的Spark解釋Configu (因此Spark設置爲在Local mode
中運行)
我在這裏錯過了什麼嗎?
PS:我能夠連接使用spark-shell
是的,那是我安裝Spark的地方:)。那就是Spark安裝的主目錄 – Raj