Failed to Create Ignite Component when running Apache Ignite on command Line

Question

When starting to learn ignite, I ended up using IntelliJ as an IDE and it has been working fine. However I need to move it over onto a supercomputer environment and need to be able to run it from the command line but am having trouble with my code being able to find the needed classes. I created my project using maven added the proper dependencies as mentioned in the getting started guide. Following that I had maven package the project and used the following command:

/usr/java/jdk1.8.0_91/bin/java -cp "${IGNITE_HOME}/modules/core/target/ignite-core-1.6.0.jar:${IGNITE_HOME}/modules/core/target/libs/cache-api-1.0.0.jar:${IGNITE_HOME}/modules/spring/target/ignite-spring-1.6.0.jar:target/my-app-1.0-SNAPSHOT.jar" com.mycompany.app.App

However it is failing to create an ignite component with the following error:

Exception in thread "main" class org.apache.ignite.IgniteException: Failed to create Ignite component (consider adding ignite-spring module to classpath) [component=SPRING, cls=org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl]
    at org.apache.ignite.internal.util.IgniteUtils.convertException(IgniteUtils.java:906)
    at org.apache.ignite.Ignition.start(Ignition.java:350)
    at com.mycompany.app.App.main(App.java:24)
Caused by: class org.apache.ignite.IgniteCheckedException: Failed to create Ignite component (consider adding ignite-spring module to classpath) [component=SPRING, cls=org.apache.ignite.internal.util.spring.IgniteSpringHelperImpl]
    at org.apache.ignite.internal.IgniteComponentType.componentException(IgniteComponentType.java:313)
    at org.apache.ignite.internal.IgniteComponentType.create0(IgniteComponentType.java:289)
    at org.apache.ignite.internal.IgniteComponentType.create(IgniteComponentType.java:200)
    at org.apache.ignite.internal.IgnitionEx.loadConfigurations(IgnitionEx.java:637)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:840)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:749)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:619)
    at org.apache.ignite.internal.IgnitionEx.start(IgnitionEx.java:589)
    at org.apache.ignite.Ignition.start(Ignition.java:347)
    ... 1 more
Caused by: java.lang.NoClassDefFoundError: org/springframework/beans/BeansException
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:264)
    at org.apache.ignite.internal.IgniteComponentType.create0(IgniteComponentType.java:275)
    ... 8 more
Caused by: java.lang.ClassNotFoundException: org.springframework.beans.BeansException
    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)
    ... 11 more

Looking for other psimilar problems, I've seen that it is because of failure to include ignite-spring in the pom file. However I have included that. Here is my pom file:


  4.0.0
  com.mycompany.app
  my-app
  jar
  1.0-SNAPSHOT
  my-app
  http://maven.apache.org
  
  
    
      org.apache.maven.plugins
      maven-compiler-plugin
      3.5.1
      
       1.8
       1.8
      
    
  
  
  
    
      org.apache.ignite
      ignite-core
      1.6.0
    
    
      org.apache.ignite
      ignite-spring
      1.6.0
    
    
      org.apache.ignite
      ignite-indexing
      1.6.0

Where am I going wrong? Has important into the IDE caused something to become inconsistent? Is my command for running the code incomplete or erroneous? Thanks for the help. If needed here are the first lines of my code where the error is occurring:

package com.mycompany.app;

import org.apache.ignite.Ignite;
import org.apache.ignite.IgniteCache;
import org.apache.ignite.Ignition;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.net.URL;
import java.net.URLClassLoader;
import java.util.StringTokenizer;

public class App
{
    public static void main( String[] args ) {
        printClasspath();
        String data;
        try {
            data = readFile("tweet.txt");
            Ignite ignite = Ignition.start("/ignite-1.6.0/examples/config/example-ignite.xml");
            IgniteCache cache = ignite.getOrCreateCache("myCacheName");
        ...
        }
     }
}

Valentin Kulichenko · Accepted Answer

I suggest to do the following:

Pack all your application classes (without Ignite dependencies) into a JAR and put it into IGNITE_HOME/libs folder.
Set MAIN_CLASS environment variable to your main class (com.mycompany.app.App).
Run IGNITE_HOME/bin/ignite.sh script. It will properly form the classpath parameter for Java with all required Ignite dependencies and will run your application.

Failed to Create Ignite Component when running Apache Ignite on command Line

Answers (2)

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