On Tue, May 16, 2017 at 5:56 PM, Adam Litke <ali...@redhat.com> wrote:
> Great feature! I am glad to see you plan to use the existing imageio > framework for transferring data. > Yep, and that's the part we need the feedback on the most. > > Will you allow export of VMs from a particular snapshot? I guess that's > how you'll have to do it if you want to support export of running VMs. > Exactly, that's how we intend to support exporting VMs with no downtime. > > I think you should definitely have a comment in the ovf to indicate that > an OVA was generated by a oVirt. People will try to use this new feature > to import random OVAs from who knows where. I'd also recommend adding a > version to this comment: <!-- Generated by oVirt version 4.1.2 --> or > perhaps even a schema version in case you need to deal with compatibility > issues in the future. > > So yeah, there will be some sort of marking - either by a field or a comment. We'll see about that. As for the schema version, it already exists in OVFs generated by oVirt today exactly for that purpose. > I agree with Yaniv Kaul that we should offer to sparsify the VM to > optimize it for export. We should also return compressed data. When > exporting, does it make sense to cache the stored OVA file in some sort of > ephemeral storage (host local is fine, storage domain may be better) in > order to allow the client to resume or restart an interrupted download > without having to start from scratch? > > Well, on the one hand it makes sense and I would expect such a mechanism to be used for image-download as well. On the other hand, we don't support this concept of pausing ongoing operations or resuming interrupted opeations on the engine side, so in the context of ova-download (where the streaming process is comprised of several steps orchestrated by the engine) supporting this may require too much effort. > > On Sun, May 14, 2017 at 9:56 AM, Arik Hadas <aha...@redhat.com> wrote: > >> Hi everyone, >> >> We would like to share our plan for extending the currently provided >> support for OVA files with: >> 1. Support for uploading OVA. >> 2. Support for exporting a VM/template as OVA. >> 3. Support for importing OVA that was generated by oVirt (today, we only >> support those that are VMware-compatible). >> 4. Support for downloading OVA. >> >> This can be found on the feature page >> <http://www.ovirt.org/develop/release-management/features/virt/enhance-import-export-with-ova/> >> . >> >> Your feedback and cooperation will be highly appreciated. >> >> Thanks, >> Arik >> >> >> _______________________________________________ >> Users mailing list >> Users@ovirt.org >> http://lists.ovirt.org/mailman/listinfo/users >> >> > > > -- > Adam Litke >
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