Then use the syntax given by http://hadoop.apache.org/common/docs/current/api/org/apache/hadoop/util/GenericOptionsParser.html :
$ bin/hadoop jar -libjars ./samplejoin.jar /opt/hadoop-0.20.2/contrib/datajoin/hadoop-0.20.2-datajoin.jar org.apache.hadoop.contrib.utils.join.DataJoinJob datajoin/input ... On Fri, Mar 26, 2010 at 5:10 PM, M B <machac...@gmail.com> wrote: > Sorry, but where exactly do I include the libjars option? I tried to put > it > where you stated (after the DataJoinJob class), but it just comes back with > usage information (as if the option is not valid): > $ <p...@hadoop01:~/hadoop_tests$> hadoop jar > /opt/hadoop-0.20.2/contrib/datajoin/hadoop-0.20.2-datajoin.jar > org.apache.hadoop.contrib.utils.join.DataJoinJob -libjars ./samplejoin.jar > datajoin/input datajoin/output Text 1 > org.apache.hadoop.contrib.utils.join.SampleDataJoinMapper > org.apache.hadoop.contrib.utils.join.SampleDataJoinReducer > org.apache.hadoop.contrib.utils.join.SampleTaggedMapOutput Text > *usage: DataJoinJob inputdirs outputdir map_input_file_format numofParts > mapper_class reducer_class map_output_value_class output_value_class > [maxNumOfValuesPerGroup [descriptionOfJob]]]* > > It seems like it's not taking the option for some reason, like it's failing > an argument check in DataJoinJob - does that not use the standard args or > something? > > > On Fri, Mar 26, 2010 at 4:38 PM, Ted Yu <yuzhih...@gmail.com> wrote: > > > DataJoinJob is contained in hadoop-0.20.2-datajoin.jar which is in your > > HADOOP_CLASSPATH > > > > I think you should specify samplejoin.jar using -libjars instead of > putting > > it directly after jar command: > > hadoop jar hadoop-0.20.2-datajoin.jar > > org.apache.hadoop.contrib.utils.join.DataJoinJob -libjars > ./samplejoin.jar > > ... (same as your example) > > > > Cheers > > > > On Fri, Mar 26, 2010 at 3:24 PM, M B <machac...@gmail.com> wrote: > > > > > I may be having a setup issue with classpaths, would appreciate some > > help. > > > > > > I created a jar with all the Sample* classes in contrib/DataJoin. Here > > is > > > the listing of my samplejoin.jar file: > > > " zip.vim version v22 > > > " Browsing zipfile /home/hadoop/hadoop_tests/samplejoin.jar > > > " Select a file with cursor and press ENTER > > > META-INF/ > > > META-INF/MANIFEST.MF > > > org/ > > > org/apache/ > > > org/apache/hadoop/ > > > org/apache/hadoop/contrib/ > > > org/apache/hadoop/contrib/utils/ > > > org/apache/hadoop/contrib/utils/join/ > > > org/apache/hadoop/contrib/utils/join/SampleDataJoinReducer.class > > > org/apache/hadoop/contrib/utils/join/SampleTaggedMapOutput.class > > > org/apache/hadoop/contrib/utils/join/SampleDataJoinMapper.class > > > > > > When I go to run this, things start to run, but every Map try errors > out > > > with: > > > "java.lang.RuntimeException: java.lang.ClassNotFoundException: > > > org.apache.hadoop.contrib.utils.join.SampleTaggedMapOutput" > > > > > > Here is the command: > > > hadoop jar ./samplejoin.jar > > > org.apache.hadoop.contrib.utils.join.DataJoinJob > > > datajoin/input datajoin/output Text 1 > > > org.apache.hadoop.contrib.utils.join.SampleDataJoinMapper > > > org.apache.hadoop.contrib.utils.join.SampleDataJoinReducer > > > org.apache.hadoop.contrib.utils.join.SampleTaggedMapOutput Text > > > > > > This is a new install of 0.20.2. > > > > > > HADOOP_CLASSPATH is set > > > to: /opt/hadoop-0.20.2/contrib/datajoin/hadoop-0.20.2-datajoin.jar > > > Any help would be appreciated. > > > > > >
