Try executing with strace

strace -f -o /tmp/trace.txt virt-install --connect=qemu:///system ...

On Sat, Oct 13, 2012 at 1:08 PM, Peter Steele <[email protected]> wrote:

> I have a Python application that I use to create KVM based VMs
> programmatically. When I run the program interactively (from a command
> line), everything works fine. However, when I run it through supervisord,
> things do work as expected.
>
> The code I use in my Python program to launch virt-install is
> straightforward:
>
>     cmd = 'virt-install --connect=qemu:///system --name "vmtest" ...'
>     cmd = shlex.split(cmd)
>     process = subprocess.Popen(cmd, stdout=subprocess.PIPE,
> stderr=subprocess.STDOUT)
>
> After calling Popen, my Python code monitors the process waiting for it to
> exit. The virt-install program that I'm running here via Popen is itself a
> Python program, not that it really matters. When it runs properly, it ends
> up spawning two processes in addition to the main virt-install process. A
> ps list usually looks something like this:
>
> root     21968  0.3  0.1 300816 20996 pts/3    S+   10:57   0:00
> /usr/bin/python -tt /usr/sbin/virt-install ...
> qemu     22018  9.0  5.2 4477800 860856 ?      Sl   10:57   0:16
> /usr/libexec/qemu-kvm -S -M rhel6.3.0 ...
> root     22041  0.0  0.0 310184  5712 pts/3    Sl+  10:57   0:00
> /usr/bin/virsh --connect qemu:///system console 33
>
> The VM creation process is designed to run unattended, and like I said
> when I run my Python app manually everything works fine. However, when I
> run it through supervisord, the virsh process exits for some reason, and
> then the main virt-install process terminates, but curiously the qemu-kvm
> process continues.
>
> I have been unable to determine why this is happening. Can anyone offer
> any suggestions what might be going on?
>
>
> _______________________________________________
> Supervisor-users mailing list
> [email protected]
> http://lists.supervisord.org/mailman/listinfo/supervisor-users
>
>
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