[Hedeby users] Re: [GE users] SDM issues

cbyun cbyun at ll.mit.edu
Fri Jul 31 19:02:39 BST 2009


Hi Richard,

> 
> > But, I observed that the startupCloudHosts hook only wake up one host at
> a time instead of multiple hosts.   So I am wondering how the cloud
> startup hook calculates the number of needed hosts.
> >
> 
> Try to set the min/max parameter in the cloud adapter config to lets say 5.
> Cloud Adapter will start in a first step one cloud host. The first cloud
> host is
> treated a vpn server and it is started always as a single first host . In
> a
> second step it will start the next 4 missing hosts in a single action (by
> calling startupCloudsHost 4).
> 
> The GE adapter (if it requests 100 hosts) will get first the 1 host (vpn
> server)
> and later the 4 additional hosts. If cloud adapter has no more active
> hosts
> (=resources) the resource request of  GE adapter can not be fulfilled. GE
> adapter must wait until the resource amount optimizer has provided the
> additional hosts. When a resource is moved out of the cloud adapter the
> resource
> amount optimizer tries to fill the gab. I will startup additional cloud
> hosts.
> It can start more than one host in a single action.
> 


Are you suggesting to set like below in the optimizer configuration?

    <cloud_adapter:optimizer xsi:type="cloud_adapter:MinMaxResourceAmountOptimizerConfig"
                             max="5"
                             min="1">


Thanks,
- Chansup

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