Configuring SPARK_LOCAL_IP and SPARK_MASTER_IP in a spark-yarn installation - apache-spark

Question

I am trying to install Spark on Hadoop-Yarn and I'm getting the error which I believe is due to a configuration error. I have a fully functioning hadoop-yarn installation on Ubuntu. When I execute the spark-submit command or spark-shell command I get the following error. I would like to know whether I have set the IP addresses correctly in the respective files? Currently I'm usung the same IP for both hadoop and Spark. As I want to configure spark to use hdfs and yarn do I need to have seperate IP addresses for SPARK_LOCAL_IP and SPARK_MASTER_IP in spark-env.sh?
ERROR spark.SparkContext: Error initializing SparkContext.
java.net.ConnectException: Call From hadoop-VirtualBox/127.0.1.1 to
hadoop-VirtualBox:9000 failed on connection exception:
java.net.ConnectException: Connection refused;
Following are the versions of software I'm using
Ubuntu: 18.01.1 LTS
Hadoop: 3.0.3
Spark: 2.44
Scala: 2.12.0
Java: 1.8.0
I downloaded a pre-built version of Spark for hadoop from this link. Following is the IP given to hadoop in /etc/hosts.txt
127.0.0.1 localhost
127.0.1.1 hadoop-VirtualBox #hadoop node master
.profile configuration file (I have my environment set up in .profile instead of .bashrc)
export PATH=$PATH:/usr/local/hadoop/bin/:/usr/local/hadoop/sbin/
export CLASSPATH=$CLASSPATH:/usr/local/hadoop/lib/*:.
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export PATH=$JAVA_HOME/bin:$PATH
PATH=/usr/local/Spark/bin:$PATH
export HADOOP_CONF_DIR=/usr/local/hadoop/etc/hadoop
export YARN_CONF_DIR=/usr/local/hadoop/etc/hadoop
export SPARK_HOME=/usr/local/Spark
export LD_LIBRARY_PATH=/usr/local/hadoop/lib/native:$LD_LIBRARY_PATH
export SCALA_HOME=/usr/local/Scala
export PATH=$SCALA_HOME:bin:$PATH
spark-env.sh
export SCALA_HOME=/usr/local/Scala
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk-amd64
export SPARK_WORKER_MEMORY=1g
export SPARK_WORKER_INSTANCES=2
export SPARK_MASTER_IP=127.0.1.1
#export SPARK_MASTER_PORT=9000
export SPARK_WORKER_DIR=/usr/local/Spark/tmp
# Options read in YARN client mode
export HADOOP_CONF_DIR=/usr/local/hadoop/etc/hadoop
export SPARK_CONF_DIR=/usr/local/Spark/conf
export YARN_CONF_DIR=/usr/local/hadoop/etc/hadoop
export SPARK_EXECUTOR_INSTANCES=2
export SPARK_EXECUTOR_CORES=2
export SPARK_EXECUTOR_MEMORY=1G
export SPARK_DRIVER_MEMORY=1G
export SPARK_YARN_APP_NAME=Spark
spark-default.conf
spark.master yarn
spark.eventLog.enabled true
spark.eventLog.dir hdfs://hadoop-VirtualBox:9000/spark-logs
spark.yarn.am.memory 512m
spark.serializer org.apache.spark.serializer.KryoSerializer
spark.yarn.jars hdfs://hadoop-VirtualBox:9000/spark-jars
First I start the hadoop services and then start the spark services as follows:
start-dfs.sh
start-yarn.sh
jps
hdfs dfs -mkdir /spark-logs
hdfs dfs -mkdir /spark-jars
#spark-jars.zip is a zip file of the jars folder in $SPARK_HOME
hdfs dfs -put /usr/local/Spark/spark-jars.zip /spark-jars
cd /usr/local/Spark/sbin
./start-all.sh
spark-submit --class org.apache.spark.examples.JavaSparkPi --master yarn --deploy-mode client /usr/local/Spark/examples/jars/spark-examples_2.11-2.4.4.jar 10
Follwoing is the trace in the terminal.
2019-10-20 11:55:39,512 WARN util.Utils: Your hostname, hadoop-VirtualBox resolves to a loopback address: 127.0.1.1; using 10.0.2.15 instead (on interface enp0s3)
2019-10-20 11:55:39,519 WARN util.Utils: Set SPARK_LOCAL_IP if you need to bind to another address
2019-10-20 11:55:43,942 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
2019-10-20 11:55:47,883 INFO spark.SparkContext: Running Spark version 2.4.4
2019-10-20 11:55:48,135 INFO spark.SparkContext: Submitted application: JavaSparkPi
2019-10-20 11:55:48,858 INFO spark.SecurityManager: Changing view acls to: hadoop
2019-10-20 11:55:48,858 INFO spark.SecurityManager: Changing modify acls to: hadoop
2019-10-20 11:55:48,859 INFO spark.SecurityManager: Changing view acls groups to:
2019-10-20 11:55:48,859 INFO spark.SecurityManager: Changing modify acls groups to:
2019-10-20 11:55:48,859 INFO spark.SecurityManager: SecurityManager: authentication disabled; ui acls disabled; users with view permissions: Set(hadoop); groups with view permissions: Set(); users with modify permissions: Set(hadoop); groups with modify permissions: Set()
2019-10-20 11:55:50,722 INFO util.Utils: Successfully started service 'sparkDriver' on port 44765.
2019-10-20 11:55:53,863 INFO spark.SparkEnv: Registering MapOutputTracker
2019-10-20 11:55:54,364 INFO spark.SparkEnv: Registering BlockManagerMaster
2019-10-20 11:55:54,395 INFO storage.BlockManagerMasterEndpoint: Using org.apache.spark.storage.DefaultTopologyMapper for getting topology information
2019-10-20 11:55:54,407 INFO storage.BlockManagerMasterEndpoint: BlockManagerMasterEndpoint up
2019-10-20 11:55:55,024 INFO storage.DiskBlockManager: Created local directory at /tmp/blockmgr-75df7314-58f9-4c97-b827-e66072015afa
2019-10-20 11:55:55,815 INFO memory.MemoryStore: MemoryStore started with capacity 366.3 MB
2019-10-20 11:55:56,962 INFO spark.SparkEnv: Registering OutputCommitCoordinator
2019-10-20 11:55:58,780 INFO util.log: Logging initialized #26940ms
2019-10-20 11:56:00,794 INFO server.Server: jetty-9.3.z-SNAPSHOT, build timestamp: unknown, git hash: unknown
2019-10-20 11:56:01,372 INFO server.Server: Started #29549ms
2019-10-20 11:56:01,754 INFO server.AbstractConnector: Started ServerConnector#6b648010{HTTP/1.1,[http/1.1]}{0.0.0.0:4040}
2019-10-20 11:56:01,772 INFO util.Utils: Successfully started service 'SparkUI' on port 4040.
2019-10-20 11:56:02,378 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#6ac4944a{/jobs,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,422 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#1e34c607{/jobs/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,468 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#5215cd9a{/jobs/job,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,528 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#31198ceb{/jobs/job/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,596 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#9257031{/stages,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,656 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#75201592{/stages/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,672 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#7726e185{/stages/stage,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,721 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#5dda14d0{/stages/stage/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,759 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#1db0ec27{/stages/pool,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,815 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#3d9fc57a{/stages/pool/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,855 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#d4ab71a{/storage,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,923 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#3b4ef7{/storage/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,941 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#1af05b03{/storage/rdd,null,AVAILABLE,#Spark}
2019-10-20 11:56:02,982 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#5987e932{/storage/rdd/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,051 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#1ad777f{/environment,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,098 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#5bbbdd4b{/environment/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,135 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#438bad7c{/executors,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,160 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#25230246{/executors/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,194 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#4fdf8f12{/executors/threadDump,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,234 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#4a8b5227{/executors/threadDump/json,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,479 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#54f5f647{/static,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,503 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#2899a8db{/,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,559 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#1e8823d2{/api,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,602 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#4c432866{/jobs/job/kill,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,657 INFO handler.ContextHandler: Started o.s.j.s.ServletContextHandler#12365c88{/stages/stage/kill,null,AVAILABLE,#Spark}
2019-10-20 11:56:03,776 INFO ui.SparkUI: Bound SparkUI to 0.0.0.0, and started at http://10.0.2.15:4040
2019-10-20 11:56:04,336 INFO spark.SparkContext: Added JAR file:/usr/local/Spark/examples/jars/spark-examples_2.11-2.4.4.jar at spark://10.0.2.15:44765/jars/spark-examples_2.11-2.4.4.jar with timestamp 1571568964292
2019-10-20 11:56:15,228 INFO client.RMProxy: Connecting to ResourceManager at /0.0.0.0:8032
2019-10-20 11:56:19,448 INFO yarn.Client: Requesting a new application from cluster with 1 NodeManagers
2019-10-20 11:56:20,449 INFO yarn.Client: Verifying our application has not requested more than the maximum memory capability of the cluster (8192 MB per container)
2019-10-20 11:56:20,455 INFO yarn.Client: Will allocate AM container, with 896 MB memory including 384 MB overhead
2019-10-20 11:56:20,476 INFO yarn.Client: Setting up container launch context for our AM
2019-10-20 11:56:20,553 INFO yarn.Client: Setting up the launch environment for our AM container
2019-10-20 11:56:20,753 INFO yarn.Client: Preparing resources for our AM container
2019-10-20 11:56:21,859 INFO yarn.Client: Deleted staging directory hdfs://localhost:9000/user/hadoop/.sparkStaging/application_1571568174433_0002
2019-10-20 11:56:21,887 ERROR spark.SparkContext: Error initializing SparkContext.
java.net.ConnectException: Call From hadoop-VirtualBox/127.0.1.1 to hadoop-VirtualBox:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
at org.apache.hadoop.ipc.Client.call(Client.java:1479)
at org.apache.hadoop.ipc.Client.call(Client.java:1412)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy12.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy13.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2108)
at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1305)
at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1317)
at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:57)
at org.apache.hadoop.fs.Globber.glob(Globber.java:252)
at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1657)
at org.apache.spark.deploy.yarn.Client$$anonfun$prepareLocalResources$5.apply(Client.scala:528)
at org.apache.spark.deploy.yarn.Client$$anonfun$prepareLocalResources$5.apply(Client.scala:524)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at org.apache.spark.deploy.yarn.Client.prepareLocalResources(Client.scala:524)
at org.apache.spark.deploy.yarn.Client.createContainerLaunchContext(Client.scala:865)
at org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:179)
at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:57)
at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:183)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:501)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2520)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:935)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:926)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:926)
at org.apache.spark.examples.JavaSparkPi.main(JavaSparkPi.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:845)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:161)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:184)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:920)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:929)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:614)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:712)
at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:375)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1528)
at org.apache.hadoop.ipc.Client.call(Client.java:1451)
... 47 more
2019-10-20 11:56:22,320 INFO server.AbstractConnector: Stopped Spark#6b648010{HTTP/1.1,[http/1.1]}{0.0.0.0:4040}
2019-10-20 11:56:22,378 INFO ui.SparkUI: Stopped Spark web UI at http://10.0.2.15:4040
2019-10-20 11:56:22,721 WARN cluster.YarnSchedulerBackend$YarnSchedulerEndpoint: Attempted to request executors before the AM has registered!
2019-10-20 11:56:22,922 INFO cluster.YarnClientSchedulerBackend: Stopped
2019-10-20 11:56:23,156 INFO spark.MapOutputTrackerMasterEndpoint: MapOutputTrackerMasterEndpoint stopped!
2019-10-20 11:56:23,355 INFO memory.MemoryStore: MemoryStore cleared
2019-10-20 11:56:23,365 INFO storage.BlockManager: BlockManager stopped
2019-10-20 11:56:23,566 INFO storage.BlockManagerMaster: BlockManagerMaster stopped
2019-10-20 11:56:23,569 WARN metrics.MetricsSystem: Stopping a MetricsSystem that is not running
2019-10-20 11:56:23,627 INFO scheduler.OutputCommitCoordinator$OutputCommitCoordinatorEndpoint: OutputCommitCoordinator stopped!
2019-10-20 11:56:23,725 INFO spark.SparkContext: Successfully stopped SparkContext
Exception in thread "main" java.net.ConnectException: Call From hadoop-VirtualBox/127.0.1.1 to hadoop-VirtualBox:9000 failed on connection exception: java.net.ConnectException: Connection refused; For more details see: http://wiki.apache.org/hadoop/ConnectionRefused
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792)
at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:732)
at org.apache.hadoop.ipc.Client.call(Client.java:1479)
at org.apache.hadoop.ipc.Client.call(Client.java:1412)
at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229)
at com.sun.proxy.$Proxy12.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.getFileInfo(ClientNamenodeProtocolTranslatorPB.java:771)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191)
at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102)
at com.sun.proxy.$Proxy13.getFileInfo(Unknown Source)
at org.apache.hadoop.hdfs.DFSClient.getFileInfo(DFSClient.java:2108)
at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1305)
at org.apache.hadoop.hdfs.DistributedFileSystem$22.doCall(DistributedFileSystem.java:1301)
at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81)
at org.apache.hadoop.hdfs.DistributedFileSystem.getFileStatus(DistributedFileSystem.java:1317)
at org.apache.hadoop.fs.Globber.getFileStatus(Globber.java:57)
at org.apache.hadoop.fs.Globber.glob(Globber.java:252)
at org.apache.hadoop.fs.FileSystem.globStatus(FileSystem.java:1657)
at org.apache.spark.deploy.yarn.Client$$anonfun$prepareLocalResources$5.apply(Client.scala:528)
at org.apache.spark.deploy.yarn.Client$$anonfun$prepareLocalResources$5.apply(Client.scala:524)
at scala.collection.mutable.ResizableArray$class.foreach(ResizableArray.scala:59)
at scala.collection.mutable.ArrayBuffer.foreach(ArrayBuffer.scala:48)
at org.apache.spark.deploy.yarn.Client.prepareLocalResources(Client.scala:524)
at org.apache.spark.deploy.yarn.Client.createContainerLaunchContext(Client.scala:865)
at org.apache.spark.deploy.yarn.Client.submitApplication(Client.scala:179)
at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend.start(YarnClientSchedulerBackend.scala:57)
at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:183)
at org.apache.spark.SparkContext.<init>(SparkContext.scala:501)
at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2520)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:935)
at org.apache.spark.sql.SparkSession$Builder$$anonfun$7.apply(SparkSession.scala:926)
at scala.Option.getOrElse(Option.scala:121)
at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:926)
at org.apache.spark.examples.JavaSparkPi.main(JavaSparkPi.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:845)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:161)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:184)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:920)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:929)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:531)
at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:495)
at org.apache.hadoop.ipc.Client$Connection.setupConnection(Client.java:614)
at org.apache.hadoop.ipc.Client$Connection.setupIOstreams(Client.java:712)
at org.apache.hadoop.ipc.Client$Connection.access$2900(Client.java:375)
at org.apache.hadoop.ipc.Client.getConnection(Client.java:1528)
at org.apache.hadoop.ipc.Client.call(Client.java:1451)
... 47 more
2019-10-20 11:56:23,899 INFO util.ShutdownHookManager: Shutdown hook called
2019-10-20 11:56:23,913 INFO util.ShutdownHookManager: Deleting directory /tmp/spark-1659f92f-aa82-4f31-9183-f9b95d9375e3
2019-10-20 11:56:23,946 INFO util.ShutdownHookManager: Deleting directory /tmp/spark-f353495e-4f40-48b2-91a3-a3e2caeb3500

Answer 1

You must set your Local IP in Spark-env.sh file.
like: SPARK_LOCAL_IP=""