Hi Rance, Nice idea you brought to the list.
i see tons of tools to use that help what you're trying to achieve: nagios, shared folders, network communication with a third agent that will reconfigure the vm (very like nagios). I'm not sure that make the guest communicate directly with a hypervisor is a good idea. The common knowledge of virtual machines says that the visualized machine should not be aware that it's been virtualizated (from a computing point of view, not from the user point). I think that the whole idea of the vm talking directly to the hypervison could have serious security implications. On Wed, Mar 2, 2011 at 11:46 PM, gmartin <[email protected]> wrote: > Here's maybe a less kludgey approach. Use a monitoring tool like Nagios > external to the VMs to monitor the guests for various performance parameters > (Nagios can monitor ANYTHING). When the host exceeds certain parameters for > certain periods of time, launch an event handler to make your system > reconfiguration. > > http://www.nagios.org/ > <http://www.nagios.org/> > http://nagios.sourceforge.net/docs/nagioscore/3/en/eventhandlers.html > > \\Greg > > > > > On Wed, Mar 2, 2011 at 6:20 PM, Rance Hall <[email protected]> wrote: > >> On Wed, Mar 2, 2011 at 12:53 PM, JD <[email protected]> wrote: >> > On 03/02/2011 08:44 AM, Rance Hall wrote: >> >> <snip> >> >> >> So I put it to the community: >> >> >> >> What do you guys think? Is this something that would work for you? >> >> >> >> I'm willing to discuss alternative implementation ideas if the basic >> >> idea has merit but the serial support idea does not work, maybe >> >> something like a virtual "Integrated Lights-Out" >> >> >> >> Thanks for your time. >> >> >> >> Rance >> >> >> >> > Guy, this is a very easy to kludge a solution for. >> > Share a directory between host and VM. >> > The host will have a script that will monitor the presence >> > of a file in that folder. That file will be created by the script >> > in the guest VM when it needs to ask the host to fire up >> > another VM. So, when that file is visible o the script on the host, >> > it will fire up the seconf VM. Subsequently, the guest VM script can >> delete >> > that file when the load goes below peak, and the script on >> > the host will notice the file's disappearance, and shutdown >> > the second VM. >> > You can select different file names for different VM's to fire up >> > and shut down. >> > Be sure your script on the host does not chew up to much >> > cpu on the host. >> > >> > Good luck. >> > >> > JD >> > >> >> JD: >> >> You are absolutely right. This is kludge-able. I question the >> scalability of the kludge and therefore question the "easy"ness of it. >> But that is beside the point really. >> >> BDIM is much more than the examples I provided and as we know kludging >> all possible options is not a kludge it is a nightmare. >> >> If I was interested for just myself I would have kludged and moved on. >> >> I think there is a larger audience for this type of thing, and it may >> be worth NOT kludging it. >> >> And that last bit is the reason for the list discussion. >> >> For my own use I will keep in mind shared folders idea for this, as I >> think it does have limited utility. >> >> Rance >> >> >> ------------------------------------------------------------------------------ >> Free Software Download: Index, Search & Analyze Logs and other IT data in >> Real-Time with Splunk. Collect, index and harness all the fast moving IT >> data >> generated by your applications, servers and devices whether physical, >> virtual >> or in the cloud. Deliver compliance at lower cost and gain new business >> insights. http://p.sf.net/sfu/splunk-dev2dev >> _______________________________________________ >> VBox-users-community mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/vbox-users-community >> > > > > ------------------------------------------------------------------------------ > Free Software Download: Index, Search & Analyze Logs and other IT data in > Real-Time with Splunk. Collect, index and harness all the fast moving IT > data > generated by your applications, servers and devices whether physical, > virtual > or in the cloud. Deliver compliance at lower cost and gain new business > insights. http://p.sf.net/sfu/splunk-dev2dev > _______________________________________________ > VBox-users-community mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/vbox-users-community > >
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