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.
--
Miro Hrončok
--
Phone: +420777974800
IRC: mhroncok
_______________________________________________
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/E5SHUWKWD7D2AR4IFEKRJDK47RHN3NCQ/
