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<div class="moz-cite-prefix">Le 12/02/2015 10:05, Rui Chen a écrit :<br>
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cite="mid:CABHH=5A2iszKVm+ACCo_aE5vbqUQV2VsFUWEQ7FjvYSvrvHK5w@mail.gmail.com"
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<div dir="ltr">Hi:
<div><br>
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<div> If we boot instance with 'force_hosts', the force host
will skip all filters, looks like that it's intentional
logic, but I don't know the reason.</div>
<div><br>
</div>
<div> I'm not sure that the skipping logic is apposite, I
think we should remove the skipping logic, and the
'force_hosts' should work with the scheduler, test whether
the force host is appropriate ASAP. Skipping filters and
postponing the booting failure to nova-compute is not
advisable.</div>
<div><br>
</div>
<div> On the other side, more and more options had been
added into flavor, like NUMA, cpu pinning, pci and so on,
forcing a suitable host is more and more difficult.</div>
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<br>
Any action done by the operator is always more important than what
the Scheduler could decide. So, in an emergency situation, the
operator wants to force a migration to an host, we need to accept it
and do it, even if it doesn't match what the Scheduler could decide
(and could violate any policy)<br>
<br>
That's a *force* action, so please leave the operator decide.<br>
<br>
-Sylvain<br>
<br>
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cite="mid:CABHH=5A2iszKVm+ACCo_aE5vbqUQV2VsFUWEQ7FjvYSvrvHK5w@mail.gmail.com"
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<div>Best Regards.</div>
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