Estimating image preparation time

["Hartl, Gerhard L." <GH...@odu.edu>]

Can someone give me a quick overview on how VCL obtains the mins until the reservation is available?  I am having issues where VCL estimates 1 min even when it is provisioning a VM from scratch.  I typically have my image Estimated Reload Time set to 10 mins since it takes us about 6-8 mins to fully build and prepare an image.

- Gerhard Hartl
Old Dominion University 

Re: Estimating image preparation time

[Aaron Peeler <aa...@ncsu.edu>]

  When user makes a selection for image. The web front end only checks 
the for the currentimageid set in the database.  If it user's selection 
matches the current image recorded in the db, then est wait time is less 
than a minute.

When the user makes the selection, the processing begins. The est value 
can change depending on whats really loaded or not. If it doesn't match 
and the node needs to be loaded then the est value changes accordingly.

Basically the web scheduling app depends on the information in the 
database to be correct, since it doesn't normally have access to the 
private network to directly confirm what's loaded. It's up to the 
backend (vcld) management nodes to make sure it's correct after a node 
gets loaded.

Aaron



On 9/16/10 9:15 AM, Hartl, Gerhard L. wrote:
> Can someone give me a quick overview on how VCL obtains the mins until the reservation is available?  I am having issues where VCL estimates 1 min even when it is provisioning a VM from scratch.  I typically have my image Estimated Reload Time set to 10 mins since it takes us about 6-8 mins to fully build and prepare an image.
>
> - Gerhard Hartl
> Old Dominion University


-- 

Aaron Peeler
Program Manager
Virtual Computing Lab
NC State University
aaron_peeler@ncsu.edu
919-513-4571