Description of problem: zchunk metadata type is a perfect way to optimize downloads for updated metadata where only modified parts are downloaded. But the format is bigger than standard GZ compress metadata because it contains additional checksums. It make no sense to generate such a metadata for a repository that is never updated like fedora repository. DNF does not know the future of any repository therefore it always download zchunk metadata if they are available. The consequence - bigger mirrors, more download required and it uses more disk space with no benefit - only the same setting is used by distribution to generate `fedora` and `updates` repositories. I propose to not generate zchunk metadata
I think this is a completely reasonable idea... perhaps pungi could not do zchunk on 'final' releases? Moving to pungi for comment...
The idea definitely makes a lot of sense. If the RC compose is not updated at any point, zchunk metadata is just taking space. That being said, I'm not sure Pungi can reasonably stop generating it. Pungi doesn't really know what it's creating here. The way how it's configured is that there is a generic `createrepo_extra_args` option set to value `["--zck", "--zck-dict-dir=/usr/share/fedora-repo-zdicts/rawhide"]`. This gets used in the createrepo_c command. Would it be possible to remove this option when config is prepared for the RC?
This bug appears to have been reported against 'rawhide' during the Fedora Linux 39 development cycle. Changing version to 39.
This message is a reminder that Fedora Linux 39 is nearing its end of life. Fedora will stop maintaining and issuing updates for Fedora Linux 39 on 2024-11-26. It is Fedora's policy to close all bug reports from releases that are no longer maintained. At that time this bug will be closed as EOL if it remains open with a 'version' of '39'. Package Maintainer: If you wish for this bug to remain open because you plan to fix it in a currently maintained version, change the 'version' to a later Fedora Linux version. Note that the version field may be hidden. Click the "Show advanced fields" button if you do not see it. Thank you for reporting this issue and we are sorry that we were not able to fix it before Fedora Linux 39 is end of life. If you would still like to see this bug fixed and are able to reproduce it against a later version of Fedora Linux, you are encouraged to change the 'version' to a later version prior to this bug being closed.
Fedora Linux 39 entered end-of-life (EOL) status on 2024-11-26. Fedora Linux 39 is no longer maintained, which means that it will not receive any further security or bug fix updates. As a result we are closing this bug. If you can reproduce this bug against a currently maintained version of Fedora Linux please feel free to reopen this bug against that version. Note that the version field may be hidden. Click the "Show advanced fields" button if you do not see the version field. If you are unable to reopen this bug, please file a new report against an active release. Thank you for reporting this bug and we are sorry it could not be fixed.