Hi Abhishek,
thanks for your answer. Thus this is the reason for the 1s and 3s raster
in the whole plot.
Do you (or someone else) have any ideas what maybe is causing the few
outliers downwards?
The outliers upwards can be caused by some latencies in the network or
in the some of the nodes. No pr
Christian,
The TaskTrackers send "heartbeat" messages to the JobTracker. The
default interval for these messages is 3 seconds.
This is one reason why you see the 3 second steps.
Abhishek
On Mon, Apr 11, 2011 at 3:19 AM, Christian Kumpe wrote:
> Hi,
>
> I'm doing some measurement on hadoop's exe
Hi,
I'm doing some measurement on hadoop's execution time for my theses. I
discovered some steps in the jobs execution time when raising the
mappers' execution time continuously.
Here is a plot of the execution times with 1, 30 and 60 parallel
executing mappers:
http://baumbart.drhuim.de/execution
Hi,
I'm doing some measurement on hadoop's execution time for my theses. I
discovered some steps in the jobs execution time when raising the
mappers' execution time continuously.
Here is a plot of the execution times with 1, 30 and 60 parallel
executing mappers:
http://baumbart.drhuim.de/execution
