[Swift-devel] Is there a site count limit?

Mihael Hategan hategan at mcs.anl.gov
Sat Jun 27 15:14:09 CDT 2009


On Sat, 2009-06-27 at 14:28 -0500, Allan Espinosa wrote:
> ok this gets me confused.  in the swift docs:
> 
>  throttle.score.job.factor
> 
>     Valid values: <int>, off
> 
>     Default value: 4
> 
>     The Swift scheduler has the ability to limit the number of
> concurrent jobs allowed on a site based on the performance history of
> that site. Each site is assigned a score (initially 1), which can
> increase or decrease based on whether the site yields successful or
> faulty job runs. The score for a site can take values in the (0.1,
> 100) interval. The number of allowed jobs is calculated using the
> following formula:
> 
>     2 + score*throttle.score.job.factor
> 
> 
> so the score can exceed 100?

There are two scores. The raw score, which can be anything, and the
scaled score, which goes from 0.1 to 100. There's a 1-to-1 mapping
between the two.





More information about the Swift-devel mailing list