FAQ
I am new to hadoop. downloaded version 0.20.2 and installed it on local mode.

Run wordcount examples and others successfully, however,
I am trying to run the hadoop-streaming example:

$HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/hadoop-streaming.jar \
-input myInputDirs \
-output myOutputDir \
-mapper /bin/cat \
-reducer /bin/wc

But I can NOT find the "hadoop-streaming.jar" anywhere
Exception in thread "main" java.io.IOException: Error opening job jar:
hadoop-streaming.jar
at org.apache.hadoop.util.RunJar.main(RunJar.java:90)


Please help

Michael

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  • Ted Yu at Jun 12, 2010 at 7:17 pm
    You can find it here:
    contrib/streaming/hadoop-0.20.2-streaming.jar

    On Sat, Jun 12, 2010 at 11:40 AM, Michael Robinson
    wrote:
    I am new to hadoop. downloaded version 0.20.2 and installed it on local
    mode.

    Run wordcount examples and others successfully, however,
    I am trying to run the hadoop-streaming example:

    $HADOOP_HOME/bin/hadoop jar $HADOOP_HOME/hadoop-streaming.jar \
    -input myInputDirs \
    -output myOutputDir \
    -mapper /bin/cat \
    -reducer /bin/wc

    But I can NOT find the "hadoop-streaming.jar" anywhere
    Exception in thread "main" java.io.IOException: Error opening job jar:
    hadoop-streaming.jar
    at org.apache.hadoop.util.RunJar.main(RunJar.java:90)


    Please help

    Michael

    --
    View this message in context:
    http://lucene.472066.n3.nabble.com/where-is-hadoop-streaming-tp891281p891281.html
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  • Michael Robinson at Jun 12, 2010 at 7:28 pm
    Ted,

    Thanks, do you know is there is a way to update the hadoop documentation
    adding this information to save hours of time to the next persons with the
    same problem?

    Thanks again

    Michael
    --
    View this message in context: http://lucene.472066.n3.nabble.com/where-is-hadoop-streaming-tp891281p891341.html
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  • Ted Yu at Jun 12, 2010 at 8:44 pm
    You can create an account on
    http://wiki.apache.org/hadoop/HadoopStreamingand then edit it to show
    the correct location.

    On Sat, Jun 12, 2010 at 12:28 PM, Michael Robinson
    wrote:
    Ted,

    Thanks, do you know is there is a way to update the hadoop documentation
    adding this information to save hours of time to the next persons with the
    same problem?

    Thanks again

    Michael
    --
    View this message in context:
    http://lucene.472066.n3.nabble.com/where-is-hadoop-streaming-tp891281p891341.html
    Sent from the Hadoop lucene-users mailing list archive at Nabble.com.

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postedJun 12, '10 at 6:41p
activeJun 12, '10 at 8:44p
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