[libvirt] [PATCH] qemu: Increase guest startup timeout to 30 seconds

Jiri Denemark jdenemar at redhat.com
Wed Feb 10 09:49:40 UTC 2010


> Currently the timeout for reading startup output is 3 seconds. If the
> host is under any sort of load, we can easily trigger this. Lets bump
> it to 30 seconds.
> 
> Since the polling loop checks to see if the process has died, we shouldn't
> erroneously hit this timeout if qemu bombs (only if it is stuck in some
> infinite loop).
> 
> Signed-off-by: Cole Robinson <crobinso at redhat.com>
> ---
>  src/qemu/qemu_driver.c |    2 +-
>  1 files changed, 1 insertions(+), 1 deletions(-)

It wouldn't be hard to make it fail even with 30 seconds timeout but then it
doesn't really make sense to try to start a new guest on a host which is under
such a big load. I think we should be fine with 30 seconds unless we want to
optimize for stuck qemu.

ACK




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