Forgot to mention: if Destroy command is called on vm in Running state, cloudStack:
* Stops vm on the backend (just the way we do when StopVm command is executed, so you no longer see the vm on the hypervisor) * marks vm as Destroyed in the DB. On 10/16/12 9:53 AM, "Alena Prokharchyk" <alena.prokharc...@citrix.com> wrote: >On 10/16/12 9:46 AM, "Min Chen" <min.c...@citrix.com> wrote: > >>Thanks Lee for clarification. Then my next natural question is: what is >>the difference between stop instance and destroy instance (which are also >>shown on CloudStack UI)? > > >cloudStack doesn't send any commands to the backend on DestroyVm command. >The vm is marked as Destroyed in the DB, the regular user can't see it any >more. The vm can be recovered by the ROOT admin in the "expunge.delay" >period of time (configurable, 1 day by default). When recoverVm command is >executed, the vm goes back to Stopped state. > >If no recover was called on vm in Destroyed state, it will get expunged >after expunge.delay. Expunge means that all vm's volumes will get >destroyed on the primary storage, and the vm will be marked as Removed in >the DB. > >-Alena. > >> >>-min >> >>On 10/15/12 7:33 PM, "Gavin Lee" <gavin....@gmail.com> wrote: >> >>>It's by design, when you stop a VM (advanceStop() in >>>VirtualMachineManagerImpl) in CloudStack UI, it will delete all the vm >>>metadata info from xenserver database, it will reconstruct the vm >>>profile to xenserver db when you start again (advanceStart() in >>>VirtualMachineManagerImpl). >>> >>>It's easy to keep vm profile consistency since the only reference is >>>cloudstack database. >>> >>>On Tue, Oct 16, 2012 at 6:12 AM, Min Chen <min.c...@citrix.com> wrote: >>>> Hi there, >>>> What did we internally invoke when user is stopping VM >>>>instance from CloudStack UI? It seems that it did more than shutdown VM >>>>from XenCenter. After this operation, my VM disappeared from XenCenter >>>>console. If I manually do shutdown from XenCenter UI, I can see that my >>>>VM is still there with stopped status. >>>> Thanks >>>> -min >>> >>> >>> >>>-- >>>Gavin >> >> > > >
