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Re: Trouble in running MapReduce application
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 <[EMAIL PROTECTED]> 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 <[EMAIL PROTECTED]>
> 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 <[EMAIL PROTECTED]> 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
>
+
Fatih Haltas 2013-02-19, 15:59
+
Harsh J 2013-02-19, 16:20
+
Fatih Haltas 2013-02-19, 16:39
+
Harsh J 2013-02-19, 17:44
+
Hemanth Yamijala 2013-02-23, 13:05