Luis, You can also take a look at USC-ISI's scheduler for heterogeneous systems that checks resource availability as well. Currently, it checks number of cpus, memory space, and hard disk space. If available resource is not enough, it does not allow a new instance.
The branch can be found at lp:~usc-isi/nova/hpc-trunk. Thanks, Joseph ----- Original Message ----- From: "Luis Miguel Silva" <[email protected]> To: [email protected] Sent: Thursday, May 5, 2011 9:08:02 PM Subject: [Openstack] Extending Openstack's scheduling capabilities Dear all, I'm evaluating Openstack and i'm interested in extending it's scheduling capabilities. So i'm looking for ways to replace Openstack's scheduler component with my own (so i can route the requests to an external scheduler that the company i work for develops). Any ideas on how i can do it? During my research, i found that there are 3 scheduling types in Openstack: - chance scheduler - zone scheduler - and the simple scheduler Is the scheduler component in Openstack modular / easy to replace? What options do i have? p.s. i've also found a post saying (http://webcache.googleusercontent.com/search?q=cache:AI0tmD2qMxsJ:https://bugs.launchpad.net/nova/%2Bbug/766444+openstack+bypass+scheduler&cd=1&hl=en&ct=clnk&gl=us&source=www.google.com): "I've seen plenty of questions come in asking how to launch a VM on a particular compute node. I learned this is available with the burnin merge, where you can bypass the scheduler, but no documentation was included with that code. Please document it - I can review and edit as needed." Any idea where i can get more information on the subject? Thanks in advance, Luis Silva _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
