On KVM, AFAIK the shutdown is the equivalent of pressing the power button. To get the Linux OS to catch this and initiate a clean shutdown, you need the ACPID service running in the guest OS.
On Wed, Jun 6, 2018 at 6:01 PM, Yiping Zhang <[email protected]> wrote: > Hi, all: > > We have a few VM instances which will hang when issue a Stop command from > CloudStack web UI or thru API calls, due to the app’s own startup/stop > script in guest OS was not properly invoked. The app’s startup/stop script > works properly if we issue shutdown/reboot command in guest OS directly. > > Hence here is my question: when CloudStack tries to stop a running VM > instance, what is the exact command it sends to VM to stop it, with or > without forced flag? What are the interactions between the CloudStack, the > hypervisor and the guest VM? > > Yiping >
