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From Vinod Patil <vinod.mapa...@gmail.com>
Subject Re: Can not find hadoop packages
Date Thu, 29 May 2014 05:37:49 GMT
Hi,

You also need to add commons-configuration*.jar  to the CLASSPATH.

Thanks,
Vinod


On Thu, May 29, 2014 at 12:43 AM, Zhige Xin <xinzhige8@gmail.com> wrote:

> Hi deal all,
>
> I tried to compile my own WordCount.java using the following command:
>
> *javac -classpath
> /usr/local/Cellar/hadoop/2.2.0/libexec/share/hadoop/common/hadoop-common-2.2.0:/usr/local/Cellar/hadoop/2.2.0/libexec/share/hadoop/mapreduce/hadoop-mapreduce-client-core-2.2.0.jar:/usr/local/Cellar/hadoop/2.2.0/libexec/share/hadoop/common/lib/commons-cli-1.2.jar
> -d myClasses WordCount.java*
>
> but got some errors as follows:
>
> *WordCount.java:1: error: package org.apache.hadoop.conf does not exist*
>
> *import org.apache.hadoop.conf.Configuration;*
>
> *                             ^*
>
> *WordCount.java:2: error: package org.apache.hadoop.fs does not exist*
>
> *import org.apache.hadoop.fs.Path;*
>
> *                           ^*
>
> *WordCount.java:3: error: package org.apache.hadoop.io
> <http://org.apache.hadoop.io> does not exist*
>
> *import org.apache.hadoop.io.Text;*
>
> *                           ^*
>
> *WordCount.java:11: error: cannot find symbol*
>
> *        Configuration configuration = new Configuration();*
>
> *        ^*
>
> *  symbol:   class Configuration*
>
> *  location: class WordCount*
>
> *WordCount.java:11: error: cannot find symbol*
>
> *        Configuration configuration = new Configuration();*
>
> *                                          ^*
>
> *  symbol:   class Configuration*
>
> *  location: class WordCount*
>
> *WordCount.java:14: error: cannot access Configuration*
>
> *        Job job = new Job(configuration, "Word Count");*
>
> *                  ^*
>
> *  class file for org.apache.hadoop.conf.Configuration not found*
>
> *WordCount.java:16: error: cannot find symbol*
>
> *        job.setMapperClass(Map.class);*
>
> *                           ^*
>
> *  symbol:   class Map*
>
> *  location: class WordCount*
>
> *WordCount.java:17: error: cannot find symbol*
>
> *        job.setReducerClass(Reduce.class);*
>
> *                            ^*
>
> *  symbol:   class Reduce*
>
> *  location: class WordCount*
>
> *WordCount.java:18: error: cannot find symbol*
>
> *        job.setOutputKeyClass(Text.class);*
>
> *                              ^*
>
> *  symbol:   class Text*
>
> *  location: class WordCount*
>
> *WordCount.java:19: error: cannot find symbol*
>
> *        job.setOutputValueClass(Text.class);*
>
> *                                ^*
>
> *  symbol:   class Text*
>
> *  location: class WordCount*
>
> *WordCount.java:22: error: cannot find symbol*
>
> *        FileInputFormat.addInputPath(job, new Path(args[0]));*
>
> *                                              ^*
>
> *  symbol:   class Path*
>
> *  location: class WordCount*
>
> *WordCount.java:23: error: cannot find symbol*
>
> *        FileOutputFormat.setOutputPath(job, new Path(args[1]));*
>
> *                                                ^*
>
> *  symbol:   class Path*
>
> *  location: class WordCount*
>
> *Note: WordCount.java uses or overrides a deprecated API.*
>
> *Note: Recompile with -Xlint:deprecation for details.*
>
> *12 errors*
>
>
> I do not why because I checked this post
>
> http://ac31004.blogspot.com/2013/11/hadoop-2x-jar-file-location-for.html
>
> and added the jars (hadoop-common-2.2.0,
> hadoop-mapreduce-client-core-2.2.0.jar and commons-cli-1.2.jar) into my
> classpath but it still does not work.
>
> Thanks!
>
>
>
> Best,
>
> Isaiah
>

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