<div dir="ltr">Yes, there maybe a problem. There won't be nothing to stop the scheduler from allocating the VM if it's resumed. That's the reason for accounting the capacity even if you are not actually using it, you'll be granted with it as soon you request it (and its available). <div>
<br></div><div><div>So you may be not making a "complete" use of the resource them but you have a "reservation" for them, especially for SUSPENDED/POWER OFF. But also for HOLD, PENDING, STOP, that will potentially interfere with other users when the VM is resumed.</div>
<div><br></div><div>Now we could check the quota when the VM is moved to PENDING. For example, OpenNebula won't let you resume the VM. </div><div><br></div><div>However, the other quotas should be also modified to follow the same convention. For example, number of IP's leased from a network. The main problem I see here is that would be conflicting with other metrics like (number of VMs). If we only limit ACTIVE VMs a DoS attack could be done easily by creating VMs in STOP (e.g. size of checkpoint files is implicitly controlled by the MEMORY quota). If we preserve the quota as in 4.6, then the MEMORY quota for ACTIVE VMs wouldn't be useful. </div>
<div><br></div><div>Maybe is not "fair" in all cases (I believe that only stop VMs are a problem, and that operation is not exposed for the end-users, i.e. cloud view ) but it is consistent for all the quotas...</div>
<div><br></div><div>Cheers</div><div><div><br></div><div><div>Ruben</div><div><br></div><div><br></div></div></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, May 13, 2014 at 11:15 PM, Jon <span dir="ltr"><<a href="mailto:three18ti@gmail.com" target="_blank">three18ti@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><p dir="ltr">How would that affect scheduling? For instance I have a vm that only comes on at certain times of the day. </p>
<p dir="ltr">I think this is a good change too, I'm just curious if there are any repercussions to the change. </p>
<p dir="ltr">Thanks, <br>
Jon A</p><div><div>
<div class="gmail_quote">On May 13, 2014 2:04 PM, "kiran ranjane" <<a href="mailto:kiran.ranjane@gmail.com" target="_blank">kiran.ranjane@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<div dir="ltr">+1 vote for this<div><br></div><div>Thanks</div><div><br></div><div>Kiran Ranjane</div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Tue, May 13, 2014 at 3:05 PM, Stefan Kooman <span dir="ltr"><<a href="mailto:stefan@bit.nl" target="_blank">stefan@bit.nl</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div>Quoting Carlos Martín Sánchez (<a href="mailto:cmartin@opennebula.org" target="_blank">cmartin@opennebula.org</a>):<br>
> Hi,<br>
><br>
> On Fri, May 2, 2014 at 10:51 PM, Liu, Guang Jun (Gene) <<br>
> <a href="mailto:Gene.Liu@alcatel-lucent.com" target="_blank">Gene.Liu@alcatel-lucent.com</a>> wrote:<br>
><br>
> > Hi there,<br>
> ><br>
> > Is there a way to config or twist OpenNebula so that quota management<br>
> > (e.g. RAM) counts resources of active VMs only?<br>
> ><br>
> > I found the quota management (RAM per user) counts all the VMs which<br>
> > created by a user. We found if the quota only counts the resources from the<br>
> > active VMs, that means more sense. E.g., I have 16RAM quota. I create one<br>
> > VM w/ 16G RAM. Then I save/stop my VM. The system should allow me to create<br>
> > another VM w/ 16G RAM if quota management counts only active VMs.<br>
> ><br>
> > Thanks!<br>
> > Gene<br>
> ><br>
><br>
> There isn't a way to configure that. It would require to modify the core.<br>
><br>
> But I think it makes sense. So I return the question to the community:<br>
> ¿Should we consider this change in the quota behaviour?<br>
<br>
</div>I vote for this change. Your not actually consuming resources on the<br>
hypervisor(s) for not having running vm's ...<br>
<br>
Gr. Stefan<br>
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