Thanks Owen! -SM
On Mon, Sep 22, 2008 at 1:02 AM, Owen O'Malley <[EMAIL PROTECTED]> wrote: > > On Sep 21, 2008, at 9:33 PM, Sandy wrote: > > Is there a way to get the total number of keys emitted by particular >> mapper >> in the beginning of the combiner function? >> > > The short answer is no. As I said in my previous email, the combiner will > get called when the first spill is being dumped. This can happen while the > map is still running in a different thread. Therefore, the number wouldn't > make much sense. Also note that the combiner may be called a second (or > third or forth) time on a given record as the spills are merged. > > -- Owen >
