Hadoop currently does not log user's logging messages. All the user's logging messages are ignored. Hadoop-489 is to address this issue.
Runping > -----Original Message----- > From: 张茂森 [mailto:[EMAIL PROTECTED] > Sent: Wednesday, November 01, 2006 2:52 AM > To: hadoop-user@lucene.apache.org > Subject: How to Display LOG on Console > > Hi all: > > I have encountered one problem about displaying log info on Console. > > This is the detailed sentence, in order to show it more clearly, I will > use > the code of wordcount: > > public class WordCount { > > private static final Log LOG = > LogFactory.getLog(WordCount.class.getName()); // added by me > > public static class MapClass extends MapReduceBase implements Mapper { > > > > private final static IntWritable one = new IntWritable(1); > > private Text word = new Text(); > > > > public void map(WritableComparable key, Writable value, > > OutputCollector output, > > Reporter reporter) throws IOException { > > String line = ((Text)value).toString(); > > StringTokenizer itr = new StringTokenizer(line); > > while (itr.hasMoreTokens()) { > > word.set(itr.nextToken()); > > output.collect(word, one); > > LOG.info("printlog"); > // added by me > > } > > } > > } > > Then I submit the job of wordcount, but I can’t see any information > “printlog” on my Console. Do you have some suggestions? > > > > Thank you very much!
