hadoop-mapreduce-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Harsh J <qwertyman...@gmail.com>
Subject Re: number of tasks assign per heartbeat
Date Sun, 13 Mar 2011 04:39:39 GMT
Hello,

On Sun, Mar 13, 2011 at 8:10 AM, Debbie Fu <fuyulin365@gmail.com> wrote:
> HI,
> How many tasks would assign per TT heartbeat?  Is there a parameter for it
> to configure in hadoop?

This is dependent on what scheduler you're using. Which one are you
using and (am curious) why do you seek this change? :)

The default JobQueueTaskScheduler shall assign multiple map-tasks and
a single reduce task per heartbeat. Does not have a property that can
control this behavior.

-- 
Harsh J
www.harshj.com

Mime
View raw message