Re: RFC: revert to external snapshot API

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On Thu, Sep 16, 2021 at 02:53:35PM +0300, Nikolay Shirokovskiy wrote:
> [...]
> 
> 
> >
> > > > One thing you've missed though is that deletion of snapshots now
> > becomes
> > > > quite a challenge.
> > > >
> > >
> > > Yeah I did not consider implementing deleting at that moment. However to
> > > make
> > > external snapshots usable it should be implemented as well.
> >
> > Yeah, both need to be implemented at the same time.
> >
> > > Anyway is anybody in Red Hat working on this (considering you and Pavel
> > > discussed
> > > the topic recently)? If not I would like to proceed with implementation.
> >
> > We definitely plan to work on it, but I can't give you any time
> > estimates yet.
> >
> > More importantly, since you are interested into this as well, it would
> > be great if you could elaborate on how you want to use this if it's
> > ready especially any special scenarios.
> >
> > For us the basic goal is to achieve feature parity between internal and
> > external snapshots so that they can be used interchangably and
> > eventually prefering external snapshots as the way forward.
> >
> >
> Basically this is what we want to do too. On top of that we want to support
> asynchronous snapshot/revert to snapshot based on work in progress in QEMU
> being done by Virtuozzo [1]. We have no any patches for libvirt yet.
> 
> Do you mind if we proceed with implementation? I guess I can start more
> or less right now.
> 
> Nikolay

Hi Nikolay,

I was assigned to work on this feature as Peter mentioned. I was getting
familiar with the snapshot code and I'm starting working on this
feature.

Pavel

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