Hi I am on Docker on mac[K8 enabled] and trying to deploy Zeppelin on K8 by following https://zeppelin.apache.org/docs/0.9.0-SNAPSHOT/quickstart/kubernetes.html.
After deploying the zeppelin server on K8, I am trying to run the Spark example but getting following exception:
org.apache.zeppelin.interpreter.InterpreterException: java.io.IOException: Interpreter process is not running
null
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:134)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:281)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:412)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:72)
at org.apache.zeppelin.scheduler.Job.run(Job.java:172)
at org.apache.zeppelin.scheduler.AbstractScheduler.runJob(AbstractScheduler.java:130)
at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:180)
at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.io.IOException: Interpreter process is not running
null
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.internal_create(RemoteInterpreter.java:163)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:131)
... 13 more
Spark interpreter status is green
Interpreter is binded
What should I check to know why it is failing?
Related
I need help please getting spark working in windows cluster of 3 nodes. I am able to download and configure and run the master node and worker nodes. the worker nodes are registered successfully with the master. Im able to see both worker nodes in the Master UI. When I try to submit a job using:
spark-submit --master spark://IP:7077 hello_world.py
Spark continuously try to start multiple executors but the all failed with code exit 1 and it doesnt stop until I kill it. when I check the log in the UI for each worker Im seeing the following error:
Using Spark's default log4j profile: org/apache/spark/log4j2-defaults.properties
Exception in thread "main" java.lang.reflect.UndeclaredThrowableException
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1894)
at org.apache.spark.deploy.SparkHadoopUtil.runAsSparkUser(SparkHadoopUtil.scala:61)
at org.apache.spark.executor.CoarseGrainedExecutorBackend$.run(CoarseGrainedExecutorBackend.scala:424)
at org.apache.spark.executor.CoarseGrainedExecutorBackend$.main(CoarseGrainedExecutorBackend.scala:413)
at org.apache.spark.executor.CoarseGrainedExecutorBackend.main(CoarseGrainedExecutorBackend.scala)
Caused by: org.apache.spark.SparkException: Exception thrown in awaitResult:
at org.apache.spark.util.ThreadUtils$.awaitResult(ThreadUtils.scala:301)
at org.apache.spark.rpc.RpcTimeout.awaitResult(RpcTimeout.scala:75)
at org.apache.spark.rpc.RpcEnv.setupEndpointRefByURI(RpcEnv.scala:102)
at org.apache.spark.executor.CoarseGrainedExecutorBackend$.$anonfun$run$9(CoarseGrainedExecutorBackend.scala:444)
at scala.runtime.java8.JFunction1$mcVI$sp.apply(JFunction1$mcVI$sp.java:23)
at scala.collection.TraversableLike$WithFilter.$anonfun$foreach$1(TraversableLike.scala:985)
at scala.collection.immutable.Range.foreach(Range.scala:158)
at scala.collection.TraversableLike$WithFilter.foreach(TraversableLike.scala:984)
at org.apache.spark.executor.CoarseGrainedExecutorBackend$.$anonfun$run$7(CoarseGrainedExecutorBackend.scala:442)
at org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:62)
at org.apache.spark.deploy.SparkHadoopUtil$$anon$1.run(SparkHadoopUtil.scala:61)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1878)
... 4 more
**Caused by: java.io.IOException: Failed to connect to <Master DNS>/<Master IP>:56785
at **org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:288)
at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:218)
at org.apache.spark.network.client.TransportClientFactory.createClient(TransportClientFactory.java:230)
at org.apache.spark.rpc.netty.NettyRpcEnv.createClient(NettyRpcEnv.scala:204)
at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:202)
at org.apache.spark.rpc.netty.Outbox$$anon$1.call(Outbox.scala:198)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: io.netty.channel.AbstractChannel$AnnotatedConnectException: Connection refused: no further information: <Master DNS>/<Master IP>:56785
Caused by: java.net.ConnectException: Connection refused: no further information
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:715)
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330)
at io.netty.channel.nio.AbstractNioChannel$AbstractNioUnsafe.finishConnect(AbstractNioChannel.java:334)
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:710)
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:658)
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:584)
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:496)
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:986)
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74)
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30)
at java.lang.Thread.run(Thread.java:748)
Im using Spark: spark-3.3.1-bin-hadoop3
Please help.
Thanks
The application to run
I'm trying to run : https://github.com/conker84/zep-neo4j-gc2k18
The 1st paragraph Add Neo4j-Spark-Connector dependency:
%spark.dep
z.reset()
z.load("neo4j-contrib:neo4j-spark-connector:2.2.1-M5")
but an error occurred as follow:
java.lang.NullPointerException
at org.sonatype.aether.impl.internal.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:352)
at org.apache.zeppelin.spark.dep.SparkDependencyContext.fetchArtifactWithDep(SparkDependencyContext.java:171)
at org.apache.zeppelin.spark.dep.SparkDependencyContext.fetch(SparkDependencyContext.java:121)
at org.apache.zeppelin.spark.DepInterpreter.interpret(DepInterpreter.java:247)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.interpret(LazyOpenInterpreter.java:103)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:633)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.FIFOScheduler$1.run(FIFOScheduler.java:140)
at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
What should I do to correct the error?
You are looking at an outdated version of Zeppelin integration. Nowadays Zeppelin supports querying Neo4j out of the box with https://zeppelin.apache.org/docs/0.8.0/interpreter/neo4j.html.
You can check out how I have done it in my repo: https://github.com/tomasonjo/zeppelin-graph-algo
I am running few notebooks in EMR zeppelin.
EMR version 5.29.0
Spark 2.4.4 and Zeppelin 0.8.2
At times there won't be sufficient memory to run a notebook since multiple notebooks are running parallel. Hence, it will throw an error like below.
INFO [2021-03-30 06:14:51,383] ({pool-2-thread-99} Paragraph.java[jobRun]:381) - Run paragraph [paragraph_id: 20210325-112126_1343087125, interpreter: pyspark, note_id: 2G34X6W7Z, user: admin]
ERROR [2021-03-30 06:14:51,385] ({pool-2-thread-99} Job.java[run]:190) - Job failed
java.lang.RuntimeException: java.lang.NullPointerException
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.callRemoteFunction(RemoteInterpreterProcess.java:141)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.internal_create(RemoteInterpreter.java:169)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:136)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:312)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:408)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:315)
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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at org.apache.thrift.transport.TSocket.open(TSocket.java:170)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:51)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:37)
at org.apache.commons.pool2.BasePooledObjectFactory.makeObject(BasePooledObjectFactory.java:60)
at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:861)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:435)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.getClient(RemoteInterpreterProcess.java:62)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.callRemoteFunction(RemoteInterpreterProcess.java:133)
... 13 more
ERROR [2021-03-30 06:14:51,385] ({pool-2-thread-99} NotebookServer.java[afterStatusChange]:2308) - Error
java.lang.RuntimeException: java.lang.NullPointerException
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.callRemoteFunction(RemoteInterpreterProcess.java:141)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.internal_create(RemoteInterpreter.java:169)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:136)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:312)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:408)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:315)
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)
Caused by: java.lang.NullPointerException
at org.apache.thrift.transport.TSocket.open(TSocket.java:170)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:51)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:37)
at org.apache.commons.pool2.BasePooledObjectFactory.makeObject(BasePooledObjectFactory.java:60)
at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:861)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:435)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.getClient(RemoteInterpreterProcess.java:62)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.callRemoteFunction(RemoteInterpreterProcess.java:133)
... 13 more
WARN [2021-03-30 06:14:51,386] ({pool-2-thread-99} NotebookServer.java[afterStatusChange]:2316) - Job 20210325-112126_1343087125 is finished, status: ERROR, exception: java.lang.RuntimeException: java.lang.NullPointerException, result: %text java.lang.NullPointerException
at org.apache.thrift.transport.TSocket.open(TSocket.java:170)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:51)
at org.apache.zeppelin.interpreter.remote.ClientFactory.create(ClientFactory.java:37)
at org.apache.commons.pool2.BasePooledObjectFactory.makeObject(BasePooledObjectFactory.java:60)
at org.apache.commons.pool2.impl.GenericObjectPool.create(GenericObjectPool.java:861)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:435)
at org.apache.commons.pool2.impl.GenericObjectPool.borrowObject(GenericObjectPool.java:363)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.getClient(RemoteInterpreterProcess.java:62)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterProcess.callRemoteFunction(RemoteInterpreterProcess.java:133)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.internal_create(RemoteInterpreter.java:169)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.open(RemoteInterpreter.java:136)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreter.getFormType(RemoteInterpreter.java:312)
at org.apache.zeppelin.notebook.Paragraph.jobRun(Paragraph.java:408)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.RemoteScheduler$JobRunner.run(RemoteScheduler.java:315)
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)
INFO [2021-03-30 06:14:51,401] ({pool-2-thread-99} VFSNotebookRepo.java[save]:196) - Saving note:2G34X6W7Z
INFO [2021-03-30 06:14:51,775] ({pool-2-thread-99} SchedulerFactory.java[jobFinished]:120) - Job 20210325-112126_1343087125 finished by scheduler org.apache.zeppelin.interpreter.remote.RemoteInterpreter-iwb::2G34X6W7Z-shared_session
Once this issue occurs, even if the memory is available at a later stage the notebook would not run until the zeppelin service is restarted. We have tried to run the notebook when the entire yarn resource was free, but the notebook throws the same error. The issue persists until the interpreter/zeppelin is restarted. We cannot run the same notebook until then.
On executing cassandra code in Zeppelin notebook I get the following error on first run-
java.io.IOException: Invalid argument
at java.io.WinNTFileSystem.canonicalize0(Native Method)
at java.io.WinNTFileSystem.canonicalize(WinNTFileSystem.java:428)
at java.io.File.getCanonicalPath(File.java:618)
at org.fusesource.scalate.util.ClassPathBuilder$$anonfun$getClassPathFrom$3.apply(ClassPathBuilder.scala:147)
at org.fusesource.scalate.util.ClassPathBuilder$$anonfun$getClassPathFrom$3.apply(ClassPathBuilder.scala:142)
at scala.collection.TraversableLike$WithFilter$$anonfun$map$2.apply(TraversableLike.scala:683)
at scala.collection.immutable.List.foreach(List.scala:381)
at scala.collection.TraversableLike$WithFilter.map(TraversableLike.scala:682)
at org.fusesource.scalate.util.ClassPathBuilder$.getClassPathFrom(ClassPathBuilder.scala:142)
at org.fusesource.scalate.util.ClassPathBuilder.addPathFrom(ClassPathBuilder.scala:68)
at org.fusesource.scalate.util.ClassPathBuilder.addPathFromContextClassLoader(ClassPathBuilder.scala:73)
at org.fusesource.scalate.support.ScalaCompiler.generateSettings(ScalaCompiler.scala:121)
at org.fusesource.scalate.support.ScalaCompiler.<init>(ScalaCompiler.scala:59)
at org.fusesource.scalate.support.ScalaCompiler$.create(ScalaCompiler.scala:42)
at org.fusesource.scalate.TemplateEngine.createCompiler(TemplateEngine.scala:231)
at org.fusesource.scalate.TemplateEngine.compiler$lzycompute(TemplateEngine.scala:221)
at org.fusesource.scalate.TemplateEngine.compiler(TemplateEngine.scala:221)
at org.fusesource.scalate.TemplateEngine.compileAndLoad(TemplateEngine.scala:757)
at org.fusesource.scalate.TemplateEngine.compileAndLoadEntry(TemplateEngine.scala:699)
at org.fusesource.scalate.TemplateEngine.liftedTree1$1(TemplateEngine.scala:419)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:413)
at org.fusesource.scalate.TemplateEngine.load(TemplateEngine.scala:471)
at org.fusesource.scalate.TemplateEngine.layout(TemplateEngine.scala:573)
at org.apache.zeppelin.cassandra.DisplaySystem$NoResultDisplay$.<init>(DisplaySystem.scala:369)
at org.apache.zeppelin.cassandra.DisplaySystem$NoResultDisplay$.<clinit>(DisplaySystem.scala)
at org.apache.zeppelin.cassandra.EnhancedSession.<init>(EnhancedSession.scala:40)
at org.apache.zeppelin.cassandra.InterpreterLogic.<init>(InterpreterLogic.scala:98)
at org.apache.zeppelin.cassandra.CassandraInterpreter.open(CassandraInterpreter.java:231)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:616)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.ParallelScheduler$JobRunner.run(ParallelScheduler.java:162)
at java.util.concurrent.Executors$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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
And on the second run I get-
java.lang.NoClassDefFoundError: Could not initialize class org.apache.zeppelin.cassandra.DisplaySystem$NoResultDisplay$
at org.apache.zeppelin.cassandra.EnhancedSession.<init>(EnhancedSession.scala:40)
at org.apache.zeppelin.cassandra.InterpreterLogic.<init>(InterpreterLogic.scala:98)
at org.apache.zeppelin.cassandra.CassandraInterpreter.open(CassandraInterpreter.java:231)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:616)
at org.apache.zeppelin.scheduler.Job.run(Job.java:188)
at org.apache.zeppelin.scheduler.ParallelScheduler$JobRunner.run(ParallelScheduler.java:162)
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$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Apache Zeppelin version-0.8.2
Could it be because of JAR file versions inside \interpreter\cassandra ?
Appreciate any help.
i am also facing similar issue and found a detailed analysis on why it is occuring . please follow the link to know root cause of the issue
And It was reported already at issues.apache.org click here for report
I am trying to add dependency to Spark2 interpreter in Zeppelin as follows:
org.bdgenomics.adam:adam-core-spark2_2.11:0.23.0
There are no jars at localRepo location. So after I add this
dependency and run a simple command like println("hello world") I
am getting this NullPointerException:
java.lang.NullPointerException
at org.apache.zeppelin.spark.SparkInterpreter.open(SparkInterpreter.java:861)
at org.apache.zeppelin.interpreter.LazyOpenInterpreter.open(LazyOpenInterpreter.java:69)
at org.apache.zeppelin.interpreter.remote.RemoteInterpreterServer$InterpretJob.jobRun(RemoteInterpreterServer.java:493)
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)
Now there are a lot of packages with jars in local-repo folder and
also under local-repo/2C4U48MY3_spark2 which is the location for
parameter zeppelin.interpreter.localRepo.
Here is zeppelin spark2 interpreter log: http://pasted.co/06cbc12a
Without this dependency, everything works fine.
I'm unable to say why I am getting this NPE. Can you help me please?