[libvirt] [PATCH 1/2] qemu: Add support for changing timeout value to open unix monitor socket

Daniel P. Berrange berrange at redhat.com
Thu Jan 23 14:44:17 UTC 2014

On Thu, Jan 23, 2014 at 04:40:40PM +0200, Pavel Fux wrote:
> I agree, there is no harm in adding an option of configuration, different
> setup configurations require different timeout values.
> my setup was 8 servers booted with PXE boot and running on nfs rootfs, with
> 8 vms on each.
> when I tried to start all of them together the bottle neck was the network
> and it takes about 5 minutes till they all start.

That doesn't make any sense. The waiting code here is about the QEMU
process' initial startup sequence - ie the gap between exec'ing the
QEMU binary, and it listening on the monitor socket.  PXE / nfsroot
doesn't get involved there at all. Even if it were involve, if you're
seeing 5 minute delays with only 8 vms on the host, something is
seriously screwed with your host. This isn't a compelling reason to
add this config option to libvirt.

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