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java.lang.Objectorg.apache.hadoop.conf.Configured
org.apache.hadoop.examples.Join
public class Join
This is the trivial map/reduce program that does absolutely nothing other than use the framework to fragment and sort the input values. To run: bin/hadoop jar build/hadoop-examples.jar join [-m maps] [-r reduces] [-inFormat input format class] [-outFormat output format class] [-outKey output key class] [-outValue output value class] [-joinOp <inner|outer|override>] [in-dir]* in-dir out-dir
Constructor Summary | |
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Join()
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Method Summary | |
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static void |
main(java.lang.String[] args)
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int |
run(java.lang.String[] args)
The main driver for sort program. |
Methods inherited from class org.apache.hadoop.conf.Configured |
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getConf, setConf |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Methods inherited from interface org.apache.hadoop.conf.Configurable |
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getConf, setConf |
Constructor Detail |
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public Join()
Method Detail |
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public int run(java.lang.String[] args) throws java.lang.Exception
run
in interface Tool
args
- command specific arguments.
java.io.IOException
- When there is communication problems with the
job tracker.
java.lang.Exception
public static void main(java.lang.String[] args) throws java.lang.Exception
java.lang.Exception
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