Hi everyone,
I am new to it, and want to do some debug/log. I'd like to check what the value is for each mapper execution. If I add the following code in bold, where can I find the log info? If I can't do it in this way, how should I do?
public void map(Object key, Text value, Context context
) throws IOException, InterruptedException {
StringTokenizer itr = new StringTokenizer(value.toString());
System.out.println(value.toString);
while (itr.hasMoreTokens()) {
word.set(itr.nextToken());
context.write(word, one);
}
}
}