Over the last few days it seems like many of the RPM mirrors are desync'd for some subsets of the repo. Many of my builds do `dnf builddep` and the `appstream|baseos-source` repos seem to have an especially high desync rate.
$ podman run --rm -ti quay.io/centos/centos:stream10 bash # dnf --disablerepo='*' --enablerepo=appstream-source update CentOS Stream 10 - AppStream - Source 682 B/s | 3.0 kB 00:04 Errors during downloading metadata for repository 'appstream-source': - Downloading successful, but checksum doesn't match. Calculated: 09dc868bd85b58f482d2645fb823e5f7e835d219c515a72e8bca228dbe402387c72cab68273022a1ec9d76160ad513397549a4e336635ee1e22740ed3ec78ee0(sha512) Expected: 43068ade5bff34f3c74a58bc33e0e63d44de48586ba3ead6ee6b44ea7a506f069c5227a34ab64396b915432495c069f193586d2842208387758d54edb033a2e0(sha512) - Downloading successful, but checksum doesn't match. Calculated: 4fc5a6c4d27c34d0ca881b0ae0332448bc06917fd206bc1f1aab6fc9159c84598528e9c398a338fb67819488c6883239f48b3a37ba95ad887d51857aa396849d(sha512) Expected: 43068ade5bff34f3c74a58bc33e0e63d44de48586ba3ead6ee6b44ea7a506f069c5227a34ab64396b915432495c069f193586d2842208387758d54edb033a2e0(sha512) Error: Failed to download metadata for repo 'appstream-source': Cannot download repomd.xml: Cannot download repodata/repomd.xml: All mirrors were tried
Looking at the logs, mirrors like osuosl.org, ftpmirror.your.org, centos-stream-distro.1gservers.com are all out of sync, but are in the mirror list rotation.