Spark illegal character in path

Question

I am trying to start up Spark on my machine. But when I try to launch using spark-shell I get an error that there is an illegal character in the path.

Caused by: java.net.URISyntaxException: Illegal character in path at index 49: spark://DESKTOP-0N6IMAQ.fios-router.home:61978/C:\classes

My environment variables are set as

JAVA_HOME: C:\Progra~1\Java\jdk1.8.0_301

HADOOP_HOME: D:\Hadoop\hadoop

SPARK_HOME: D:\Spark\spark-3.2.0-bin-hadoop3.2

And in the path I have

%JAVA_HOME%\bin

%HADOOP_HOME%\bin

%SPARK_HOME%\bin

The whole error message is

21/10/21 18:26:03 ERROR SparkContext: Error initializing SparkContext.
java.lang.reflect.InvocationTargetException
        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.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:909)
        at org.apache.spark.executor.Executor.<init>(Executor.scala:160)
        at org.apache.spark.scheduler.local.LocalEndpoint.<init>(LocalSchedulerBackend.scala:64)
        at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:132)
        at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:220)
        at org.apache.spark.SparkContext.<init>(SparkContext.scala:581)
        at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
        at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
        at scala.Option.getOrElse(Option.scala:189)
        at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
        at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
        at $line3.$read$$iw$$iw.<init>(<console>:15)
        at $line3.$read$$iw.<init>(<console>:42)
        at $line3.$read.<init>(<console>:44)
        at $line3.$read$.<init>(<console>:48)
        at $line3.$read$.<clinit>(<console>)
        at $line3.$eval$.$print$lzycompute(<console>:7)
        at $line3.$eval$.$print(<console>:6)
        at $line3.$eval.$print(<console>)
        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 scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
        at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
        at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
        at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
        at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
        at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
        at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
        at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
        at scala.collection.immutable.List.foreach(List.scala:431)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
        at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
        at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
        at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
        at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
        at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
        at org.apache.spark.repl.Main$.doMain(Main.scala:78)
        at org.apache.spark.repl.Main$.main(Main.scala:58)
        at org.apache.spark.repl.Main.main(Main.scala)
        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:955)
        at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
        at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
        at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.URISyntaxException: Illegal character in path at index 49: spark://DESKTOP-0N6IMAQ.fios-router.home:61978/C:\classes
        at java.net.URI$Parser.fail(URI.java:2845)
        at java.net.URI$Parser.checkChars(URI.java:3018)
        at java.net.URI$Parser.parseHierarchical(URI.java:3102)
        at java.net.URI$Parser.parse(URI.java:3050)
        at java.net.URI.<init>(URI.java:588)
        at org.apache.spark.repl.ExecutorClassLoader.<init>(ExecutorClassLoader.scala:57)
        ... 70 more
21/10/21 18:26:03 ERROR Utils: Uncaught exception in thread main
java.lang.NullPointerException
        at org.apache.spark.scheduler.local.LocalSchedulerBackend.org$apache$spark$scheduler$local$LocalSchedulerBackend$$stop(LocalSchedulerBackend.scala:173)
        at org.apache.spark.scheduler.local.LocalSchedulerBackend.stop(LocalSchedulerBackend.scala:144)
        at org.apache.spark.scheduler.TaskSchedulerImpl.stop(TaskSchedulerImpl.scala:927)
        at org.apache.spark.scheduler.DAGScheduler.stop(DAGScheduler.scala:2516)
        at org.apache.spark.SparkContext.$anonfun$stop$12(SparkContext.scala:2086)
        at org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1442)
        at org.apache.spark.SparkContext.stop(SparkContext.scala:2086)
        at org.apache.spark.SparkContext.<init>(SparkContext.scala:677)
        at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
        at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
        at scala.Option.getOrElse(Option.scala:189)
        at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
        at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
        at $line3.$read$$iw$$iw.<init>(<console>:15)
        at $line3.$read$$iw.<init>(<console>:42)
        at $line3.$read.<init>(<console>:44)
        at $line3.$read$.<init>(<console>:48)
        at $line3.$read$.<clinit>(<console>)
        at $line3.$eval$.$print$lzycompute(<console>:7)
        at $line3.$eval$.$print(<console>:6)
        at $line3.$eval.$print(<console>)
        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 scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
        at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
        at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
        at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
        at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
        at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
        at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
        at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
        at scala.collection.immutable.List.foreach(List.scala:431)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
        at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
        at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
        at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
        at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
        at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
        at org.apache.spark.repl.Main$.doMain(Main.scala:78)
        at org.apache.spark.repl.Main$.main(Main.scala:58)
        at org.apache.spark.repl.Main.main(Main.scala)
        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:955)
        at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
        at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
        at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
21/10/21 18:26:03 WARN MetricsSystem: Stopping a MetricsSystem that is not running
21/10/21 18:26:03 ERROR Main: Failed to initialize Spark session.
java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
        at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:62)
        at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45)
        at java.lang.reflect.Constructor.newInstance(Constructor.java:423)
        at org.apache.spark.executor.Executor.addReplClassLoaderIfNeeded(Executor.scala:909)
        at org.apache.spark.executor.Executor.<init>(Executor.scala:160)
        at org.apache.spark.scheduler.local.LocalEndpoint.<init>(LocalSchedulerBackend.scala:64)
        at org.apache.spark.scheduler.local.LocalSchedulerBackend.start(LocalSchedulerBackend.scala:132)
        at org.apache.spark.scheduler.TaskSchedulerImpl.start(TaskSchedulerImpl.scala:220)
        at org.apache.spark.SparkContext.<init>(SparkContext.scala:581)
        at org.apache.spark.SparkContext$.getOrCreate(SparkContext.scala:2690)
        at org.apache.spark.sql.SparkSession$Builder.$anonfun$getOrCreate$2(SparkSession.scala:949)
        at scala.Option.getOrElse(Option.scala:189)
        at org.apache.spark.sql.SparkSession$Builder.getOrCreate(SparkSession.scala:943)
        at org.apache.spark.repl.Main$.createSparkSession(Main.scala:106)
        at $line3.$read$$iw$$iw.<init>(<console>:15)
        at $line3.$read$$iw.<init>(<console>:42)
        at $line3.$read.<init>(<console>:44)
        at $line3.$read$.<init>(<console>:48)
        at $line3.$read$.<clinit>(<console>)
        at $line3.$eval$.$print$lzycompute(<console>:7)
        at $line3.$eval$.$print(<console>:6)
        at $line3.$eval.$print(<console>)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at scala.tools.nsc.interpreter.IMain$ReadEvalPrint.call(IMain.scala:747)
        at scala.tools.nsc.interpreter.IMain$Request.loadAndRun(IMain.scala:1020)
        at scala.tools.nsc.interpreter.IMain.$anonfun$interpret$1(IMain.scala:568)
        at scala.reflect.internal.util.ScalaClassLoader.asContext(ScalaClassLoader.scala:36)
        at scala.reflect.internal.util.ScalaClassLoader.asContext$(ScalaClassLoader.scala:116)
        at scala.reflect.internal.util.AbstractFileClassLoader.asContext(AbstractFileClassLoader.scala:41)
        at scala.tools.nsc.interpreter.IMain.loadAndRunReq$1(IMain.scala:567)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:594)
        at scala.tools.nsc.interpreter.IMain.interpret(IMain.scala:564)
        at scala.tools.nsc.interpreter.IMain.$anonfun$quietRun$1(IMain.scala:216)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.IMain.quietRun(IMain.scala:216)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$2(SparkILoop.scala:83)
        at scala.collection.immutable.List.foreach(List.scala:431)
        at org.apache.spark.repl.SparkILoop.$anonfun$initializeSpark$1(SparkILoop.scala:83)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.savingReplayStack(ILoop.scala:97)
        at org.apache.spark.repl.SparkILoop.initializeSpark(SparkILoop.scala:83)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$4(SparkILoop.scala:165)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.tools.nsc.interpreter.ILoop.$anonfun$mumly$1(ILoop.scala:166)
        at scala.tools.nsc.interpreter.IMain.beQuietDuring(IMain.scala:206)
        at scala.tools.nsc.interpreter.ILoop.mumly(ILoop.scala:163)
        at org.apache.spark.repl.SparkILoop.loopPostInit$1(SparkILoop.scala:153)
        at org.apache.spark.repl.SparkILoop.$anonfun$process$10(SparkILoop.scala:221)
        at org.apache.spark.repl.SparkILoop.withSuppressedSettings$1(SparkILoop.scala:189)
        at org.apache.spark.repl.SparkILoop.startup$1(SparkILoop.scala:201)
        at org.apache.spark.repl.SparkILoop.process(SparkILoop.scala:236)
        at org.apache.spark.repl.Main$.doMain(Main.scala:78)
        at org.apache.spark.repl.Main$.main(Main.scala:58)
        at org.apache.spark.repl.Main.main(Main.scala)
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at org.apache.spark.deploy.JavaMainApplication.start(SparkApplication.scala:52)
        at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:955)
        at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:180)
        at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:203)
        at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:90)
        at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:1043)
        at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:1052)
        at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)
Caused by: java.net.URISyntaxException: Illegal character in path at index 49: spark://DESKTOP-0N6IMAQ.fios-router.home:61978/C:\classes
        at java.net.URI$Parser.fail(URI.java:2845)
        at java.net.URI$Parser.checkChars(URI.java:3018)
        at java.net.URI$Parser.parseHierarchical(URI.java:3102)
        at java.net.URI$Parser.parse(URI.java:3050)
        at java.net.URI.<init>(URI.java:588)
        at org.apache.spark.repl.ExecutorClassLoader.<init>(ExecutorClassLoader.scala:57)
        ... 70 more
21/10/21 18:26:03 ERROR Utils: Uncaught exception in thread shutdown-hook-0
java.lang.ExceptionInInitializerError
        at org.apache.spark.executor.Executor.stop(Executor.scala:333)
        at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
        at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
        at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2019)
        at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.util.Try$.apply(Try.scala:213)
        at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
        at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        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: java.lang.NullPointerException
        at org.apache.spark.shuffle.ShuffleBlockPusher$.<init>(ShuffleBlockPusher.scala:465)
        at org.apache.spark.shuffle.ShuffleBlockPusher$.<clinit>(ShuffleBlockPusher.scala)
        ... 16 more
21/10/21 18:26:03 WARN ShutdownHookManager: ShutdownHook '$anon$2' failed, java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
        at java.util.concurrent.FutureTask.report(FutureTask.java:122)
        at java.util.concurrent.FutureTask.get(FutureTask.java:206)
        at org.apache.hadoop.util.ShutdownHookManager.executeShutdown(ShutdownHookManager.java:124)
        at org.apache.hadoop.util.ShutdownHookManager$1.run(ShutdownHookManager.java:95)
Caused by: java.lang.ExceptionInInitializerError
        at org.apache.spark.executor.Executor.stop(Executor.scala:333)
        at org.apache.spark.executor.Executor.$anonfun$stopHookReference$1(Executor.scala:76)
        at org.apache.spark.util.SparkShutdownHook.run(ShutdownHookManager.scala:214)
        at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$2(ShutdownHookManager.scala:188)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at org.apache.spark.util.Utils$.logUncaughtExceptions(Utils.scala:2019)
        at org.apache.spark.util.SparkShutdownHookManager.$anonfun$runAll$1(ShutdownHookManager.scala:188)
        at scala.runtime.java8.JFunction0$mcV$sp.apply(JFunction0$mcV$sp.java:23)
        at scala.util.Try$.apply(Try.scala:213)
        at org.apache.spark.util.SparkShutdownHookManager.runAll(ShutdownHookManager.scala:188)
        at org.apache.spark.util.SparkShutdownHookManager$$anon$2.run(ShutdownHookManager.scala:178)
        at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
        at org.apache.spark.shuffle.ShuffleBlockPusher$.<init>(ShuffleBlockPusher.scala:465)
        at org.apache.spark.shuffle.ShuffleBlockPusher$.<clinit>(ShuffleBlockPusher.scala)
        ... 16 more

I do not understand why spark is looking at the path there or how to change it. Any help would be appreciated. Thanks.

Edit: This is what my core-site.xml file looks like.

<configuration>
    <property>
        <name>fs.defaultFS</name>
        <value>hdfs://localhost:9000</value>
    </property>
</configuration>

Answer 1

i have the exact same problem with the exact number of errors. Although i found something that seems to work for now (if you have any other solutions please feel free cause this one gets tiring)

---

The Solution:

Open a spark cluster manually using the command:

1. spark-class org.apache.spark.deploy.master.Master

Your output should be something like the image below :

https://i.stack.imgur.com/7lOKO.png

This means that your UI is set at localhost:8080 and you have opened the master at 192.168.2.4:7077.

So now the only thing thats left to do is open a 2nd cmd and execute the command :

2. spark-shell --master spark://192.168.2.4:7077

and you are pretty much ready to go. I dont say that this is the best solution so i hope you elight me with a better one. I hope i helped.

Answer 2

2 solutions:

1. run two shell approach given by BubbleBeam, one for setting master another to spawn the session
2. change spark version I encountered this issue in spark-3.2.0-bin-hadoop3.2 switched to version 3.0.3 shell works perfectly fine

Answer 3

I had the same problem. It is not the solution but the explanation what causes the bug. If somebody reads who can verify it and help to fix it, it would be nice.

When you try to start the .\spark-shell.cmd the spark will go through whole initialization of the context.

In case that we use REPL as we do. One of the steps is to make a folder for the REPL output in the fileserver. You can see this in the SparkContext.scala:464.

In this process we call a function addDirectory("/classes", path) which returns the uri for the configuration "spark.repl.class.uri" (in your situation spark://DESKTOP-0N6IMAQ.fios-router.home:61978/C:\classes).

The problem is in addDirectory function and behavior in the File class and different environments (Windows <=> Linux).

(Windows) -> new File("/classes").getCanonicalPath => C:\classes

(Linux) -> new File("/classes").getCanonicalPath => \classes

This happens in org.apache.spark.rpc.RpcEnv:190

The error which you got comes from Uri constructor while building executor but actually because we (program) generated wrong string (configuration) caused by environment.

We can't affect this from outside configuration.

One possible workaround would be to start spark-shell from Windows Subsystem for Linux. If you do so you should setup JAVA_HOME.

If you do more complex things as starting master and workers as standalone cluster from the scripts you should do some extra settings.

I hope this can help to bring this problem to somebody who can fix it.

My spark version: spark-3.2.1-bin-hadoop3.2

Answer 4

I got the same error, I fix it by using the lower version 3.1.2 Spark Release. When I type spark-shell everything just loaded correctly.