Hi again, Thanks for your help but now, I am struggling with the same problem on a machine. As the preivous problem, I just decrease the Java version by Java 6, but this time I could not solve the problem.
those are outputs that may explain the situation: --------------------------------------------------------------------------------------------------------------------------------------------- 1. I could not run my own code, to check the system I just tried to run basic wordcount example without any modification, except package info. ************************************************** COMMAND EXECUTED: hadoop jar my.jar org.myorg.WordCount NetFlow NetFlow.out Warning: $HADOOP_HOME is deprecated. Exception in thread "main" java.lang.UnsupportedClassVersionError: org/myorg/WordCount : Unsupported major.minor version 51.0 at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:634) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) at java.net.URLClassLoader.access$000(URLClassLoader.java:73) at java.net.URLClassLoader$1.run(URLClassLoader.java:212) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:205) at java.lang.ClassLoader.loadClass(ClassLoader.java:321) at java.lang.ClassLoader.loadClass(ClassLoader.java:266) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:266) at org.apache.hadoop.util.RunJar.main(RunJar.java:149) ************************************************************************************** 2. Java version: ******************************** COMMAND EXECUTED: java -version java version "1.6.0_24" OpenJDK Runtime Environment (IcedTea6 1.11.6) (rhel-1.33.1.11.6.el5_9-x86_64) OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode) ********************************** 3. JAVA_HOME variable: ********************************** COMMAND EXECUTED: echo $JAVA_HOME /usr/lib/jvm/jre-1.6.0-openjdk.x86_64 ******************************************** 4. HADOOP version: ******************************************* COMMAND EXECUTED: hadoop version Warning: $HADOOP_HOME is deprecated. Hadoop 1.0.4 Subversion https://svn.apache.org/repos/asf/hadoop/common/branches/branch-1.0 -r 1393290 Compiled by hortonfo on Wed Oct 3 05:13:58 UTC 2012 >From source with checksum fe2baea87c4c81a2c505767f3f9b71f4 ******************************************************** Are these still incompatible with eachother? (Hadoop version and java version) Thank you very much. On Tue, Feb 19, 2013 at 10:26 PM, Fatih Haltas <fatih.hal...@nyu.edu> wrote: > Thank you all very much > > 19 Şubat 2013 Salı tarihinde Harsh J adlı kullanıcı şöyle yazdı: > >> Oops. I just noticed Hemanth has been answering on a dupe thread as >> well. Lets drop this thread and carry on there :) >> >> On Tue, Feb 19, 2013 at 11:14 PM, Harsh J <ha...@cloudera.com> wrote: >> > Hi, >> > >> > The new error usually happens if you compile using Java 7 and try to >> > run via Java 6 (for example). That is, an incompatibility in the >> > runtimes for the binary artifact produced. >> > >> > On Tue, Feb 19, 2013 at 10:09 PM, Fatih Haltas <fatih.hal...@nyu.edu> >> wrote: >> >> Thank you very much Harsh, >> >> >> >> Now, as I promised earlier I am much obliged to you. >> >> >> >> But, now I solved that problem by just changing the directories then >> again >> >> creating a jar file of org. but I am getting this error: >> >> >> >> 1.) What I got >> >> >> ------------------------------------------------------------------------------ >> >> [hadoop@ADUAE042-LAP-V flowclasses_18_02]$ hadoop jar flow19028pm.jar >> >> org.myorg.MapReduce /home/hadoop/project/hadoop-data/NetFlow 19_02.out >> >> Warning: $HADOOP_HOME is deprecated. >> >> >> >> Exception in thread "main" java.lang.UnsupportedClassVersionError: >> >> org/myorg/MapReduce : Unsupported major.minor version 51.0 >> >> at java.lang.ClassLoader.defineClass1(Native Method) >> >> at java.lang.ClassLoader.defineClass(ClassLoader.java:634) >> >> at >> >> java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) >> >> at java.net.URLClassLoader.defineClass(URLClassLoader.java:277) >> >> at java.net.URLClassLoader.access$000(URLClassLoader.java:73) >> >> at java.net.URLClassLoader$1.run(URLClassLoader.java:212) >> >> at java.security.AccessController.doPrivileged(Native Method) >> >> at java.net.URLClassLoader.findClass(URLClassLoader.java:205) >> >> at java.lang.ClassLoader.loadClass(ClassLoader.java:321) >> >> at java.lang.ClassLoader.loadClass(ClassLoader.java:266) >> >> at java.lang.Class.forName0(Native Method) >> >> at java.lang.Class.forName(Class.java:266) >> >> at org.apache.hadoop.util.RunJar.main(RunJar.java:149) >> >> >> >> 2.) How I create my jar >> >> >> ------------------------------------------------------------------------------------- >> >> [hadoop@ADUAE042-LAP-V flowclasses_18_02]$ jar cvf flow19028pm.jar org >> >> added manifest >> >> adding: org/(in = 0) (out= 0)(stored 0%) >> >> adding: org/myorg/(in = 0) (out= 0)(stored 0%) >> >> adding: org/myorg/MapReduce$FlowPortReducer.class(in = 1661) (out= >> >> 690)(deflated 58%) >> >> adding: org/myorg/MapReduce.class(in = 1587) (out= 903)(deflated 43%) >> >> adding: org/myorg/MapReduce$FlowPortMapper.class(in = 1874) (out= >> >> 823)(deflated 56%) >> >> >> >> 3.) Content of my jar file >> >> >> --------------------------------------------------------------------------------------- >> >> [hadoop@ADUAE042-LAP-V flowclasses_18_02]$ jar tf flow19028pm.jar >> >> META-INF/ >> >> META-INF/MANIFEST.MF >> >> org/ >> >> org/myorg/ >> >> org/myorg/MapReduce$FlowPortReducer.class >> >> org/myorg/MapReduce.class >> >> org/myorg/MapReduce$FlowPortMapper.class >> >> >> ----------------------------------------------------------------------------------------- >> >> >> >> >> >> Thank you very much. >> >> >> >> >> >> On Tue, Feb 19, 2013 at 8:20 PM, Harsh J <ha...@cloudera.com> wrote: >> >>> >> >>> Your point (4) explains the problem. The jar packed structure should >> >>> look like the below, and not how it is presently (one extra top level >> >>> dir is present): >> >>> >> >>> META-INF/ >> >>> META-INF/MANIFEST.MF >> >>> org/ >> >>> org/myorg/ >> >>> org/myorg/WordCount.class >> >>> org/myorg/WordCount$TokenizerMapper.class >> >>> org/myorg/WordCount$IntSumReducer.clas-- >> Harsh J >> >