The messages come about since it makes 'job' jars by repackaging all .class files into one .jar file rather than putting .jars in .jars. It's a reliable way to avoid some issues with Hadoop classpath handling. There's probably some small issue that's making the same class get into these jars twice. It should be harmless, but is probably avoidable. I don't know more than that and have chosen to pretend it's not happening.
On Wed, Jul 20, 2011 at 9:54 PM, Lance Norskog <[email protected]> wrote: > Maven? Heavy-handed? Naaaaa... > > I asked this because the maven mahout build did not do this in the > past. The 'alreaded added/skipping' messages are a recent phenomenon. > > On Tue, Jul 19, 2011 at 10:39 PM, Ted Dunning <[email protected]> > wrote: > > Never mind. > > > > Try -q > > > > > http://stackoverflow.com/questions/4782089/how-to-change-maven-logging-level-to-display-only-warning-and-errors > > > > > > > > On Tue, Jul 19, 2011 at 10:38 PM, Ted Dunning <[email protected]> > wrote: > > > >> You should be able to change the slf4j configuration so that INFO > messages > >> are not spewed. > >> > >> This url provides a rather heavy handed answer to this need: > >> http://jira.codehaus.org/browse/MNG-519 > >> > >> This requires that to take mvn apart and put it back together. Not > hard, > >> but silly not to have an obvious option to turn down the volume. > >> > >> Ironically, there are people out there asking how to make mvn log *more* > >> verbosely. > >> > >> If you find an easy answer, post it! > >> > >> > >> On Tue, Jul 19, 2011 at 9:41 PM, Lance Norskog <[email protected]> > wrote: > >> > >>> Maven spews build messages like these: > >>> > >>> INFO] META-INF/LICENSE.txt already added, skipping > >>> [INFO] META-INF/NOTICE.txt already added, skipping > >>> [INFO] org/apache/commons/collections/ already added, skipping > >>> [INFO] org/apache/commons/collections/FastHashMap.class already added, > >>> skipping > >>> [INFO] org/apache/commons/collections/ArrayStack.class already added, > >>> skipping > >>> [INFO] org/apache/commons/collections/FastHashMap$Values.class already > >>> added, skipping > >>> > >>> Is it possible to change the build system so that it does not print > these? > >>> > >>> -- > >>> Lance Norskog > >>> [email protected] > >>> > >> > >> > > > > > > -- > Lance Norskog > [email protected] >
