Yes this is possible, and there's two ways to do this. 1. Use a distro/release that carries the https://issues.apache.org/jira/browse/MAPREDUCE-336 fix. This will let you avoid work (see 2, which is same as your idea)
2. Configure your implementation's logger object's level in the setup/setConf methods of the task, by looking at some conf prop to decide the level. This will work just as well - and will also avoid changing Hadoop's own Child log levels, unlike the (1) method. On Fri, Apr 20, 2012 at 8:47 PM, Mapred Learn <mapred.le...@gmail.com> wrote: > Hi, > I m trying to find out best way to add debugging in map- red code. > I have System.out.println() statements that I keep on commenting and > uncommenting so as not to increase stdout size > > But problem is anytime I need debug, I Hv to re-compile. > > If there a way, I can define log levels using log4j in map-red code and > define log level as conf option ? > > Thanks, > JJ > > Sent from my iPhone -- Harsh J
