On 05/06/2012 09:12 PM, david_zhu wrote:

Hi,

When I destroy a VM, sometimes virsh will report failed.
So I tried the following shell script:


-bash-4.1# for ((i=0; i<1000; i++)); do virsh start david_mac; virsh destroy 
david_mac; if [ $? != 0 ] ; then echo $i; break; fi; done

Domain david_mac started

Domain david_mac destroyed

......

Domain david_mac started

error: Failed to destroy domain david_mac
error: Requested operation is not valid: domain is not running

Bear in mind that there is an inherent race: a guest could itself
request a shutdown prior to the point that you issue the destroy
command, in which case the destroy will fail because the guest is
already shutdown.  Since the end goal is the same (the guest is shut off
either way), it is a good idea to write your scripts to be robust to
this particular race.

That said, if your guest isn't specifically requesting a shutdown, it
seems odd that you are encountering a race, so there may be something
else at play here.  Does the log of the guest give any particular hints?