Thnaks Hemanth
On Fri, Oct 22, 2010 at 10:09 PM, Hemanth Yamijala wrote:
> Hi,
>
> Apologies for a very delayed response.
>
> The setup task is under the control of the user, and the user can
> provide an implementation that makes sense for his/her M/R job. That
> said, like with other APIs in M/
Hi,
Apologies for a very delayed response.
The setup task is under the control of the user, and the user can
provide an implementation that makes sense for his/her M/R job. That
said, like with other APIs in M/R, there is an implementation that
comes in the library for the common use cases. For e
Hi Hemanth
Thank you for your kindly reply. Do you know what really the setup do? Does
it will take the data locality into account?
On Wed, Oct 13, 2010 at 11:38 PM, Hemanth Yamijala wrote:
> If you are talking about the 'Setup task' that is used to initialize
> or setup the job, yes, it can run
If you are talking about the 'Setup task' that is used to initialize
or setup the job, yes, it can run on either the map slot or reduce
slot depending on what is available.
Thanks
Hemanth
On Thu, Oct 14, 2010 at 1:54 AM, He Chen wrote:
> Hi, all
>
> I found out that if the there is no map slot,
Hi, all
I found out that if the there is no map slot, Hadoop will use reduce slot to
setup mapreduce job when I submit a series of jobs.
The first two jobs setuped themselves with a MapAttempt. However, they
occupy all the map slots. When the third job comes, I find out it uses the
ReduceAttempt
