Github user rafaelweingartner commented on the pull request:
https://github.com/apache/cloudstack/pull/1056#issuecomment-155415964
@DaanHoogland I agree with @miguelaferreira.
I have looked that code.
The select it runs is the following:
select h.id from host h where h.status = 'Up' and h.hypervisor_type is not
null and h.data_center_id = ? ORDER by rand() limit 1
That makes me wondering, why ordering by random the projection?! That can
make problems harder to debug. Whatever, that is not the focus here.
The only ways I see that select returning nothing are the following:
⢠If we have no hosts in the zone;
⢠If all of the hosts have hypervisor_type equal to null, is it even
possible to have a host with hypervisor_type = null?
I would be concerned about the first case, a zone with no hosts. Thus, we
should have to check when the method
âcom.cloud.hypervisor.ovm3.resources.Ovm3HypervisorGuru.performSideEffectsForDelegationOnCommand(long,
Command)â is called.
What API method ends up in that code, or what action of ACS is going
execute it?
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