Sometimes there are big discrepency between this time and the real running
time at the task level.  It can be significantly less than the real
running time; for some case, I observe that it is longer than the real
running time.  What exactly does this counter measure? Thanks.

Zhu, Guojun
Modeling Sr Graduate
571-3824370
[EMAIL PROTECTED]
Financial Engineering
Freddie Mac

Zhu,

 Do you mean the 'slot millis' counter?

Arun

On Jul 17, 2012, at 6:13 AM, GUOJUN Zhu wrote:

>
> Sometimes there are big discrepency between this time and the real running time at the task level.  It can be significantly less than the real running time; for some case, I observe that it is longer than the real running time.  What exactly does this counter measure? Thanks.
>
> Zhu, Guojun
> Modeling Sr Graduate
> 571-3824370
> [EMAIL PROTECTED]
> Financial Engineering
> Freddie Mac

--
Arun C. Murthy
Hortonworks Inc.
http://hortonworks.com/

It is "Map-Reduce Framework/CPU time spent (ms)" (the shown name in all
webpage or console) counter for every run?

Zhu, Guojun
Modeling Sr Graduate
571-3824370
[EMAIL PROTECTED]
Financial Engineering
Freddie Mac

   Arun C Murthy <[EMAIL PROTECTED]>
   07/17/2012 01:39 PM
   Please respond to
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To
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Subject
Re: What exactly does the "CPU time spent (ms)" measure?
Zhu,

 Do you mean the 'slot millis' counter?

Arun

On Jul 17, 2012, at 6:13 AM, GUOJUN Zhu wrote:
Sometimes there are big discrepency between this time and the real running
time at the task level.  It can be significantly less than the real
running time; for some case, I observe that it is longer than the real
running time.  What exactly does this counter measure? Thanks.

Zhu, Guojun
Modeling Sr Graduate
571-3824370
[EMAIL PROTECTED]
Financial Engineering
Freddie Mac

--
Arun C. Murthy
Hortonworks Inc.
http://hortonworks.com/