Hello, On Tue, Apr 5, 2011 at 12:52 AM, bikash sharma <sharmabiks...@gmail.com> wrote: > Hi, > I want to change the following hadoop parameters before launching TeraSort > program: > io.sort.factor > io.sort.mb > mapreduce.reduce.tasks > io.file.buffer.size > io.sort.record.percent
Making these changes in the mapred-site.xml should be fine. As a lazy fix, set all those property changes as <final>true</final>. This would enforce it over the defaults that are being used instead. [1]'s probably why it doesn't get picked up. Or pass generic options (with -Dprop=val) while launching the program, if it accepts that. [1] - http://wiki.apache.org/hadoop/FAQ#How_do_I_get_my_MapReduce_Java_Program_to_read_the_Cluster.27s_set_configuration_and_not_just_defaults.3F -- Harsh J Support Engineer, Cloudera
