Hi, i added hadoop-core-1.0.1.jar in the project class path. i am testing wordcount (http://hadoop.apache.org/common/docs/current/mapred_tutorial.html#Example%3A+WordCount+v1.0) but when i try to run my WordCount.java in eclipse, it shows the following errors-
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/logging/LogFactory at org.apache.hadoop.conf.Configuration.<clinit>(Configuration.java:143) at test.WordCount.main(WordCount.java:56) Caused by: java.lang.ClassNotFoundException: org.apache.commons.logging.LogFactory at java.net.URLClassLoader$1.run(URLClassLoader.java:217) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:294) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) ... 2 more -Ravi Joshi --- On Thu, 17/5/12, Ravi Joshi <ravi.josh...@yahoo.com> wrote: From: Ravi Joshi <ravi.josh...@yahoo.com> Subject: Re: Unable to work with Hadoop 1.0.1 using eclipse-indigo To: common-user@hadoop.apache.org Received: Thursday, 17 May, 2012, 1:37 PM Hi Jagat, Thank you so much for answering the question. Can you please tell me all the names with location of jar files, which must be added in the project? I am using hadoop-1.0.1 in Eclipse Indigo on Ubuntu10.04 LTS. Thank you. -Ravi Joshi --- On Thu, 17/5/12, Jagat <jagatsi...@gmail.com> wrote: From: Jagat <jagatsi...@gmail.com> Subject: Re: Unable to work with Hadoop 1.0.1 using eclipse-indigo To: common-user@hadoop.apache.org Received: Thursday, 17 May, 2012, 1:32 PM Hello Ravi To create map reduce programs plugin is not mandatory. Just download Hadoop Create one Java project in Eclipse Add jar files from Home folder of Hadoop ( from share folder in Hadoop 2.x ) to project class path Create new mapper class and Reducer class , Driver class Run it On Thu, May 17, 2012 at 6:48 PM, Ravi Joshi <ravi.josh...@yahoo.com> wrote: > Hi, i recently downloaded and successfully installed hadoop-1.0.1 in my > ubuntu 10.04 LTS. I have hadoop-1.0.1.tar.gz downloaded and now i want > to design map-reduce application. As suggested by some blogs, first we > should install eclipse plugin for hadoop, which is located inside > contrib->eclipse plugin but in my hadoop-1.0.1.tar.gz, inside contrib > directory no eclipse plugin is found. Inside contrib directory only > datajoin, failmon, gridmix, hdfsproxy, hod, index, streaming and vaidya > directories are present. when i looked over src->contrib, i can find > eclipse plugin directory but no jar file. > I haven't work with hadoop > under eclipse before, can somebody please explain me the plugin > installation, so that i can start map-reduce development. > Thanking you. > > -Ravi Joshi
