[Libguestfs] [PATCH v3] v2v: -o vdsm: Add --vdsm-compat flag. -o rhev: Drop support for RHV < 4.1 (RHBZ#1400205).

Richard W.M. Jones rjones at redhat.com
Wed Dec 7 14:41:07 UTC 2016


On Wed, Dec 07, 2016 at 03:34:58PM +0100, Pino Toscano wrote:
> On Wednesday, 7 December 2016 10:02:49 CET Richard W.M. Jones wrote:
> > Support for RHEV with RHEL 6 nodes required us to output the old style
> > qcow2 compat=0.10 images.  Since RHEV 3.6 GA, RHEL 6 has not been
> > supported as a RHEV node type.  Since RHV 4.1, compat=1.1 is
> > supported.  (Support for compat=1.1 is uncertain in RHV 4.0 even on
> > RHEL 7 nodes.)
> > 
> > There are significant downsides to using qcow2 compat=0.10 instead of
> > the modern default (compat=1.1).
> > 
> > Therefore this patch does two things:
> > 
> > For -o rhev, it drops support for compat=0.10 completely.  You must
> > use RHV 4.1.
> > 
> > For -o vdsm, it adds an interim flag (--vdsm-compat=0.10 or
> > --vdsm-compat=1.1) which controls the compat level of the qcow2 output
> > file.  VDSM should use --vdsm-compat=1.1 when it is known that modern
> > qemu is available.  We can make this the default later when all RHV
> > instances have moved to 4.1.
> > 
> > It also adds:
> > 
> >   vdsm-compat-option
> > 
> > to the `virt-v2v --machine-readable' output to indicate that this flag
> > can be used.
> > 
> > Thanks: Yaniv Kaul, Michal Skrivanek.
> > ---
> 
> LGTM, just one note below.
> 
> > diff --git a/v2v/test-v2v-o-vdsm-options.sh b/v2v/test-v2v-o-vdsm-options.sh
> > index 3b7eaae..1de0e17 100755
> > --- a/v2v/test-v2v-o-vdsm-options.sh
> > +++ b/v2v/test-v2v-o-vdsm-options.sh
> > @@ -21,6 +21,7 @@
> >  unset CDPATH
> >  export LANG=C
> >  set -e
> > +set -x
> 
> This should be left out, I guess.

I added it so I could see why the test was failing during my tests.  I
think we should leave it (it doesn't have any effect unless the test
fails, and then it's very useful).

Thanks,
Rich.

-- 
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