не может найти класс HibInputFormat. Получение excetion не classDef найдены

Question

hduser@akshay-Lenovo-G580:~$ hadoop jar /home/hduser/HipiDemo.jar HelloWorld sampleimages.hib sampleimages_average Warning: $HADOOP_HOME is deprecated.

Exception in thread "main" java.lang.NoClassDefFoundError: org/hipi/imagebundle/mapreduce/HibInputFormat at HelloWorld.run(HelloWorld.java:44) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65) at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79) at HelloWorld.main(HelloWorld.java:67) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.util.RunJar.main(RunJar.java:160) Caused by: java.lang.ClassNotFoundException: org.hipi.imagebundle.mapreduce.HibInputFormat at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 9 more

мой код:

import hipi.image.FloatImage; 

import java.io.IOException; 

import org.apache.hadoop.conf.Configured; 
import org.apache.hadoop.fs.Path; 
import org.apache.hadoop.io.IntWritable; 
import org.apache.hadoop.io.Text; 
import org.apache.hadoop.mapreduce.Job; 
import org.apache.hadoop.mapreduce.Mapper; 
import org.apache.hadoop.mapreduce.Reducer; 
import org.apache.hadoop.mapreduce.lib.input.FileInputFormat; 
import org.apache.hadoop.mapreduce.lib.output.FileOutputFormat; 
import org.apache.hadoop.util.Tool; 
import org.apache.hadoop.util.ToolRunner; 
import org.hipi.image.HipiImageHeader; 
import org.hipi.imagebundle.mapreduce.HibInputFormat; 

public class HelloWorld extends Configured implements Tool { 

public static class HelloWorldMapper extends Mapper<HipiImageHeader,  FloatImage, IntWritable, FloatImage> { 
public void map(HipiImageHeader key, FloatImage value, Context context) 
    throws IOException, InterruptedException { 
} 
} 
public static class HelloWorldReducer extends Reducer<IntWritable, FloatImage, IntWritable, Text> { 
public void reduce(IntWritable key, Iterable<FloatImage> values, Context context) 
    throws IOException, InterruptedException { 
} 
} 

public int run(String[] args) throws Exception { 
    // Check input arguments 
    if (args.length != 2) { 
    System.out.println("Usage: helloWorld <input HIB> <output directory>"); 
    System.exit(0); 
    } 

    // Initialize and configure MapReduce job 
    //Job job = Job.getInstance(); 
    Job job = new Job(getConf(), "Employee Salary"); 
// Set input format class which parses the input HIB and spawns map tasks 
job.setInputFormatClass(HibInputFormat.class); 
// Set the driver, mapper, and reducer classes which express the computation 
job.setJarByClass(HelloWorld.class); 
job.setMapperClass(HelloWorldMapper.class); 
job.setReducerClass(HelloWorldReducer.class); 
// Set the types for the key/value pairs passed to/from map and reduce layers 
job.setMapOutputKeyClass(IntWritable.class); 
job.setMapOutputValueClass(FloatImage.class); 
job.setOutputKeyClass(IntWritable.class); 
job.setOutputValueClass(Text.class); 

// Set the input and output paths on the HDFS 
FileInputFormat.setInputPaths(job, new Path(args[0])); 
FileOutputFormat.setOutputPath(job, new Path(args[1])); 

// Execute the MapReduce job and block until it complets 
boolean success = job.waitForCompletion(true); 

// Return success or failure 
return success ? 0 : 1; 
} 

public static void main(String[] args) throws Exception { 
    ToolRunner.run(new HelloWorld(), args); 
    System.exit(0); 
} 

} 

Answer 1

добавить банку, содержащую класс HibInputFormat к вашим классам.

Или, если вы используете команды строки во время компиляции: Ex:

javac -classpath /lib/jarContainingTheClass.jar /examples/HelloWorld.java