Re: [PATCH] tests/migration: fix unix socket migration

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 3/9/21 5:00 PM, huangy81@chinatelecom.cn wrote:
> From: Hyman <huangy81@chinatelecom.cn>
> 
> The test aborts and error message as the following be throwed:
> "No such file or directory: '/var/tmp/qemu-migrate-{pid}.migrate",
> when the unix socket migration test nearly done. The reason is
> qemu removes the unix socket file after migration before
> guestperf.py script do it. So pre-check if the socket file exists
> when removing it to prevent the guestperf program from aborting.
> 
> Signed-off-by: Hyman <huangy81@chinatelecom.cn>
> ---
>  tests/migration/guestperf/engine.py | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Interesting, we have in MAINTAINERS:

Python scripts
M: Eduardo Habkost <ehabkost@redhat.com>
M: Cleber Rosa <crosa@redhat.com>
S: Odd Fixes
F: scripts/*.py
F: tests/*.py

However:

./scripts/get_maintainer.pl -f tests/migration/guestperf/engine.py
get_maintainer.pl: No maintainers found, printing recent contributors.
get_maintainer.pl: Do not blindly cc: them on patches!  Use common sense.

> diff --git a/tests/migration/guestperf/engine.py b/tests/migration/guestperf/engine.py
> index 83bfc3b..86d4f21 100644
> --- a/tests/migration/guestperf/engine.py
> +++ b/tests/migration/guestperf/engine.py
> @@ -405,7 +405,7 @@ def run(self, hardware, scenario, result_dir=os.getcwd()):
>              progress_history = ret[0]
>              qemu_timings = ret[1]
>              vcpu_timings = ret[2]
> -            if uri[0:5] == "unix:":
> +            if uri[0:5] == "unix:" and os.path.exists(uri[5:]):
>                  os.remove(uri[5:])
>              if self._verbose:
>                  print("Finished migration")
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>