On Mon, Sep 8, 2008 at 2:25 AM, Sandy <[EMAIL PROTECTED]> wrote: > Hi, > > This may be a silly question, but I'm strangely having trouble finding an > answer for it (perhaps I'm looking in the wrong places?). > > Suppose I have a cluster with n nodes each with m processors. > > I wish to test the performance of, say, the wordcount program on k > processors, where k is varied from k = 1 ... nm.
You can specify the number of tasks for each node in your hadoop-site.xml file. So you can get k varied from k = n, 2*n....m*n instead of k = 1...nm. > How would I do this? I'm having trouble finding the proper command line > option in the commands manual ( > http://hadoop.apache.org/core/docs/current/commands_manual.html) > > > > Thank you very much for you time. > > -SM > -- [EMAIL PROTECTED] Institute of Computing Technology, Chinese Academy of Sciences, Beijing.
