On Mon, Jul 9, 2018 at 6:28 PM Miro Hrončok <mhron...@redhat.com> wrote: > > On 9.7.2018 23:52, Josh Boyer wrote: > > On Mon, Jul 2, 2018 at 1:19 AM Jan Kurik <jku...@redhat.com> wrote: > >> > >> = Proposed System Wide Change: Zchunk Metadata = > >> https://fedoraproject.org/wiki/Changes/Zchunk_Metadata > >> > >> > >> Owner(s): > >> * Jonathan Dieter <jdieter at gmail dot com> > >> * Neal Gompa <ngompa13 at gmail dot com> > >> > >> > >> All dnf repository metadata will be compressed with the zchunk format > >> rather than xz or gzip. > >> > >> > >> == Detailed description == > >> Currently Fedora's repository metadata is compressed using the xz and gzip > >> formats. Zchunk is a new compression format designed to allow for highly > >> efficient deltas. When Fedora's metadata is compressed using zchunk, dnf > >> will download only the differences between any earlier copies of the > >> metadata and the current version. > > > > How does this work with distribution upgrades? If we only produce > > zchunk compressed metadata, but dnf in f28 doesn't even understand it, > > that seems wrong. > > > > As I understood it form one fo the previous discussions about the topic, > zchunk will be only provided together with xz. Older dnf will simply > request xz and newer dnf will request zchunk but fallback to xz if it is > not available or checksums don't match or whatever error occurs.
Can we update the language on the Change page to clarify that? josh _______________________________________________ devel mailing list -- devel@lists.fedoraproject.org To unsubscribe send an email to devel-le...@lists.fedoraproject.org Fedora Code of Conduct: https://getfedora.org/code-of-conduct.html List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@lists.fedoraproject.org/message/YXA5KJAE3LLFQTOBXOARKLSWCVWWR2Z5/
