[SPARK-28263] Spark-submit can not find class (ClassNotFoundException)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 2.4.3
• Component/s: Spark Shell, Spark Submit
• Labels: beginner
• Assignee: Unassigned
• Reporter: Zhiyuan
• Created: 05/Jul/19 19:40
• Updated: 12/Dec/22 18:10
• Resolved: 07/Jul/19 00:30

Description

I try to run the Main class in my folder using the following code in the script:

 

spark-shell --class com.navercorp.Main /target/node2vec-0.0.1-SNAPSHOT.jar --cmd node2vec ../graph/karate.edgelist --output ../walk/walk.txt 

But it raises the error:

19/07/05 14:39:20 WARN util.NativeCodeLoader: Unable to load native-hadoop library for your platform... using builtin-java classes where applicable
19/07/05 14:39:20 WARN deploy.SparkSubmit$$anon$2: Failed to load com.navercorp.Main.
java.lang.ClassNotFoundException: com.navercorp.Main
at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:348)
at org.apache.spark.util.Utils$.classForName(Utils.scala:238)
at org.apache.spark.deploy.SparkSubmit.org$apache$spark$deploy$SparkSubmit$$runMain(SparkSubmit.scala:810)
at org.apache.spark.deploy.SparkSubmit.doRunMain$1(SparkSubmit.scala:167)
at org.apache.spark.deploy.SparkSubmit.submit(SparkSubmit.scala:195)
at org.apache.spark.deploy.SparkSubmit.doSubmit(SparkSubmit.scala:86)
at org.apache.spark.deploy.SparkSubmit$$anon$2.doSubmit(SparkSubmit.scala:924)
at org.apache.spark.deploy.SparkSubmit$.main(SparkSubmit.scala:933)
at org.apache.spark.deploy.SparkSubmit.main(SparkSubmit.scala)

I have jar file in my folder, this is the structure:

1----node2vec
     2----node2vec_spark
           3----main
                 4----resources
                 4----com
                        5----novercorp
                               6----lib
                                      7----Main
                                      7----Node2vec
                                      7----Word2vec
     2----target
            3----lib
            3----classes
            3----maven-archiver
            3----node2vec-0.0.1-SNAPSHOT.jar       
     2----graph
            3---karate.edgelist
     2----walk
            3----walk.txt

Also, I attach the structure of jar file:

```META-INF/
META-INF/MANIFEST.MF
log4j2.properties
com/
com/navercorp/
com/navercorp/Node2vec$.class
com/navercorp/Main$Params$$typecreator1$1.class
com/navercorp/Main$$anon$1$$anonfun$11.class
com/navercorp/Word2vec$.class
com/navercorp/Main$$anon$1$$anonfun$8.class
com/navercorp/Node2vec$$anonfun$randomWalk$1$$anonfun$8.class
com/navercorp/Node2vec$$anonfun$indexingGraph$4.class
com/navercorp/Node2vec$$anonfun$initTransitionProb$1.class
com/navercorp/Main$.class
com/navercorp/Node2vec$$anonfun$loadNode2Id$1.class
com/navercorp/Node2vec$$anonfun$14.class
com/navercorp/Node2vec$$anonfun$readIndexedGraph$2$$anonfun$1.class
```

Could someone give me the advice on how to connect Main class?