registry team mailing list archive

[vishvananda <vishvananda@xxxxxxxxx>]

There was talk from the RS guys about integrating their Iback code, which
does a lot of transfer, but regardless, this conversation should be moved to
a blueprint.

Getting back to the bug discussion, does the objectstore/S3 protocol give an
md5 of the data as a header?  In the short term we can verify an md5 and
redownload on fail.

On Thu, Jul 22, 2010 at 8:06 PM, Joshua McKenty <jmckenty@xxxxxxxxx>
wrote:

> As long as we keep in mind that we want to support multiple image
> stores, and fall back to a more pathetic transfer method if needed.
>
> Also that we'll be transferring OVF files (which could be bittorrent
> packed).
>
> I'm still inclined to favor multicast over bittorrent, at least when the
> image store is on the LAN.
>
> Sent from my iPhone
>
> On 2010-07-22, at 7:53 PM, justinsb <608988@xxxxxxxxxxxxxxxxxx> wrote:
>
> > I'm thinking a good way to do this might be by defining a better image
> > format and transfer process.  For example, if we used the BitTorrent
> > format (though not necessarily the protocol) then we need only check
> > each block as it is transferred / written.  We can then cache images and
> > image fragments efficiently on the compute machines if we want to, we
> > get de-dup across images (though in practice this is unlikely to work
> > very well unless the images are derived from each other), and empty
> > areas should auto-compress to zero quickly.  S3 supports BitTorrent, so
> > maybe Swift will one day also, but even without this the file format (or
> > the concept of splitting the file into hashed chunks) is still useful...
> >
> > This could also be very interesting for backup purposes...
> >
> > --
> > checksum images before booting
> > https://bugs.launchpad.net/bugs/608988
> > You received this bug notification because you are a member of Nova
> > Bugs, which is subscribed to OpenStack Compute (nova).
> >
> > Status in OpenStack Compute (Nova): New
> >
> > Bug description:
> > Make sure images are transfered cleanly before booting them.
> >
> >
>
> --
> checksum images before booting
> https://bugs.launchpad.net/bugs/608988
> You received this bug notification because you are a member of Nova
> Bugs, which is subscribed to OpenStack Compute (nova).
>
> Status in OpenStack Compute (Nova): New
>
> Bug description:
> Make sure images are transfered cleanly before booting them.
>
>
>

-- 
checksum images before booting
https://bugs.launchpad.net/bugs/608988
You received this bug notification because you are a member of Registry
Administrators, which is subscribed to OpenStack.