Getting NullPointerException when running Spark Code in Zeppelin

Posted 述而不做

tags:

篇首语:本文由小常识网(cha138.com)小编为大家整理,主要介绍了Getting NullPointerException when running Spark Code in Zeppelin相关的知识,希望对你有一定的参考价值。

在zeppelin跑spark sql 时抛了空引用的异常:

Job 20150210-015259_1403135953 is finished, status: ERROR, exception: null, result: %text 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:398)
    at org.apache.zeppelin.spark.SparkInterpreter.createSparkContext(SparkInterpreter.java:387)
    at org.apache.zeppelin.spark.SparkInterpreter.getSparkContext(SparkInterpreter.java:146)
    at org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:843)
    at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:70)
    at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:491)
    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:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
    at java.lang.Thread.run(Thread.java:748)

上stackoverflow查了一下,有人也遇到这个问题。其中的一个原因是自己的环境没有安装hive,却启用了hiveContext,导致出异常。

链接:https://stackoverflow.com/questions/43289067/getting-nullpointerexception-when-running-spark-code-in-zeppelin-0-7-1

 

设置zeppelin.spark.useHiveContext = false 后问题不再出现。

以上是关于Getting NullPointerException when running Spark Code in Zeppelin的主要内容,如果未能解决你的问题,请参考以下文章

<WebLogicServer; <BEA-000386; <Server subsystem failed. Reason: java.lang.NullPointerExcept

Maven打包时出现“Show Console View”错误弹出框,错误详情为“An internal error has occurred. java.lang.NullPointerExcept

Maven打包时出现“Show Console View”错误弹出框,错误详情为“An internal error has occurred. java.lang.NullPointerExcept

RecyclerView的坑

Autofac Getting Started

01Getting Started---Getting Started with ASP.NET Web API 2入门WebApi2