On Tue, May 19, 2009 at 8:04 PM, He Chen <air...@gmail.com> wrote: > change following parameter > mapred.reduce.max.attempts 4 > mapred.reduce.tasks 1To > mapred.reduce.max.attempts 2 > mapred.reduce.tasks 2 > In your program source code!
If these parameters in hadoop-site.xml is always going to be overridden, then what is the use of having these properties in hadoop-site.xml? I don't want to put these properties in my program source code so that the program can be run in any cluster, large size or medium size. I want these configurations to be mentioned in the cluster. Can someone tell me why the job XML has different properties than what I have specified in hadoop-site.xml? Who overrides it and why?
