bin/hadoop jar hadoop-0.20.0-examples.jar wordcount /tmp/gutenberg 古腾堡输出

Question

I'm testing the Hadoop following this "Running Hadoop On Ubuntu Linux (Single-Node Cluster)" tutorial.

There is no output after running this command:

bin/hadoop jar hadoop-0.20.0-examples.jar wordcount /tmp/gutenberg gutenberg-output

If there is an error I will see something, however I see nothing. So, what should I do?

Is it an error, or something wrong with configuration?

Please give me your suggestion.

Answer 1

From the Wiki it looks like the second parameter gutenberg-output is the output file. Have you checked the contents of this file? The example is given in a file rather than output to the console.