logs are in /var/log/hadoop/userlogs/attempt* You can also setup your own log4j logger for your class to log your own messages to, very helpful when creating custom demux processors.
static Logger log = Logger.getLogger(MyClass.class); On Mar 9, 2010, at 1:57 AM, Guillermo Pérez wrote: > Ok, I think I've found the problem. The reducer class was failing. > Using a simpler one works, so I must fix the complex one :). There is > any way of capturing the error log of the map / reduce classes? > > -- > Guille -ℬḭṩḩø- <bi...@tuenti.com> > :wq
