You can implement the configure() method of the Reducer interface and look at the properties in the JobConf. In particular, "mapred.reduce.tasks" is the number of reduce tasks and "mapred.job.tracker" will be set to "local" when running in local mode.
Matei On Jun 22, 2011, at 3:12 PM, Steve Lewis wrote: > Also is there a good way in code to determine whether job is running on a > cluster or in local mode. > > I want certain debugging information to log only in local mode > > -- > Steven M. Lewis PhD > 4221 105th Ave NE > Kirkland, WA 98033 > 206-384-1340 (cell) > Skype lordjoe_com > >
