Resolving NoClassDefFoundError: org/apache/spark/Logging exception

Question

I was trying out hbase-spark connector. To start with, I am trying out this code.

My pom dependencies are:

<dependencies>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-core_2.11</artifactId>
        <version>2.0.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.spark</groupId>
        <artifactId>spark-sql_2.11</artifactId>
        <version>2.0.0</version>
    </dependency>
    <dependency>
        <groupId>org.apache.hbase</groupId>
        <artifactId>hbase-spark</artifactId>
        <version>2.0.0-alpha4</version>
    </dependency>
</dependencies>

I am getting following exception while running the code:

Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/spark/Logging at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:760) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:467) at java.net.URLClassLoader.access$100(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:368) at java.net.URLClassLoader$1.run(URLClassLoader.java:362) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:361) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at org.apache.hadoop.hbase.spark.JavaHBaseContext.(JavaHBaseContext.scala:46) at com.myproj.poc.sparkhbaseneo4j.App.main(App.java:71) Caused by: java.lang.ClassNotFoundException: org.apache.spark.Logging at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:331) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 14 more

com.myproj.poc.sparkhbaseneo4j.App.main(App.java:71) is line 67 in github code.

I checked this thread. It says that I should include same versions of all libraries. Earlier, I had 2.3.0 versions of spark libraries in my pom. But I realized that hbase-spark has latest version 2.0.0. So I downgraded versions of of all spark libraries to 2.0.0. But I am still getting the same exception.

Or do I have to stick to 1.X.X versions only for using this, as this answer says its been removed after version 1.5.2?

Answer 1

Sean Owen suggested in http://community.cloudera.com/t5/Advanced-Analytics-Apache-Spark/Hit-quot-Exception-in-thread-main-java-lang-NoClassDefFoundError/td-p/44486 that "You shouldn't use org.apache.spark.Logging in your app at all. That's likely the problem and solution."

So you should be using the following or higher version

<!-- https://mvnrepository.com/artifact/commons-logging/commons-logging -->
<dependency>
    <groupId>commons-logging</groupId>
    <artifactId>commons-logging</artifactId>
    <version>1.1.1</version>
</dependency>

Updated

I specified that and now I am getting NoClassDefFoundError: org/apache/spark/streaming/dstream/DStream

for the above issue you need following dependency

<!-- https://mvnrepository.com/artifact/org.apache.spark/spark-streaming -->
<dependency>
    <groupId>org.apache.spark</groupId>
    <artifactId>spark-streaming_2.11</artifactId>
    <version>2.0.0</version>
    <scope>provided</scope>
</dependency>