Major Description
Hadoop version 2.7.2
Spark version 2.0.0
Zeppelin version 0.7.2
Operation:
1. install the Zeppelin, and modify zeppelin-env.sh as following,
export JAVA_HOME=/usr/java/jdk1.8.0_102
export MASTER=spark://hdp-master01:7077
export SPARK_HOME=/usr/local/spark-2.0.0-bin-hadoop2.7
export HADOOP_CONF_DIR=/usr/local/hadoop-2.7.2/etc/hadoop
2. Configure the spark interpreters as following:
master spark://hdp-master01:7077
spark.app.name Zeppelin
spark.cores.max 4
spark.executor.memory 4g
3. Open a note ,specify spark as the interpreter, then type
sc.version
and get the following result,
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: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:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
I really feel wired, and do not know what the problem is, is it a bug ? Anyone help me?