Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Plain View
MapReduce >> mail # dev >> response time measurement

Samaneh Shokuhi 2012-11-12, 23:14
Copy link to this message
Re: response time measurement
There is no such a counter in default Hadoop implementation

you can instrument your own code in JobInProgress.java to calculate it,

there is also an implemented counter in JobInProgress, MAP_SLOTS_MILLS, considering both the map tasks occupying multiple slots, but this value also increase when the task is failed,


Nan Zhu
School of Computer Science,
McGill University
On Monday, 12 November, 2012 at 6:14 PM, Samaneh Shokuhi wrote:
> Hi,
> I need to do some experience on hadoop source code.
> i have modified part of it in MapTask.java class and need to compare the
> response time for mapper /job before and after modification .Is it
> reported somewhere to see that?
> Cheers,
> Samaneh
Samaneh Shokuhi 2012-11-17, 14:12
Nan Zhu 2012-11-17, 14:19