Al 8 dnf update download error 503

[root@alma8-ms ~]# dnf update
Last metadata expiration check: 2:31:56 ago on Sun 06 Oct 2024 02:46:05 PM EEST.
Dependencies resolved.
=================================================================================================================================================================================================================
 Package                                              Architecture                         Version                                                                 Repository                               Size
=================================================================================================================================================================================================================
Installing:
 kernel                                               x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   10 M
 kernel-core                                          x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   43 M
 kernel-modules                                       x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   36 M
Upgrading:
 avahi-libs                                           x86_64                               0.7-27.el8_10.1                                                         baseos                                   61 k
 cloud-init                                           noarch                               23.4-7.el8_10.8.alma.1                                                  appstream                               1.3 M
 epel-release                                         noarch                               8-21.el8                                                                epel                                     24 k
 expat                                                x86_64                               2.2.5-15.el8_10                                                         baseos                                  113 k
 findutils                                            x86_64                               1:4.6.0-23.el8_10                                                       baseos                                  526 k
 firewalld                                            noarch                               0.9.11-9.el8_10                                                         baseos                                  510 k
 firewalld-filesystem                                 noarch                               0.9.11-9.el8_10                                                         baseos                                   78 k
 glibc                                                i686                                 2.28-251.el8_10.5                                                       baseos                                  2.0 M
 glibc                                                x86_64                               2.28-251.el8_10.5                                                       baseos                                  2.2 M
 glibc-common                                         x86_64                               2.28-251.el8_10.5                                                       baseos                                  1.0 M
 glibc-devel                                          i686                                 2.28-251.el8_10.5                                                       baseos                                   86 k
 glibc-devel                                          x86_64                               2.28-251.el8_10.5                                                       baseos                                   87 k
 glibc-gconv-extra                                    i686                                 2.28-251.el8_10.5                                                       baseos                                  1.6 M
 glibc-gconv-extra                                    x86_64                               2.28-251.el8_10.5                                                       baseos                                  1.6 M
 glibc-headers                                        i686                                 2.28-251.el8_10.5                                                       baseos                                  492 k
 glibc-headers                                        x86_64                               2.28-251.el8_10.5                                                       baseos                                  492 k
 glibc-langpack-en                                    x86_64                               2.28-251.el8_10.5                                                       baseos                                  830 k
 iwl100-firmware                                      noarch                               39.31.5.1-124.el8_10.1                                                  baseos                                  204 k
 iwl1000-firmware                                     noarch                               1:39.31.5.1-124.el8_10.1                                                baseos                                  204 k
 iwl105-firmware                                      noarch                               18.168.6.1-124.el8_10.1                                                 baseos                                  288 k
 iwl135-firmware                                      noarch                               18.168.6.1-124.el8_10.1                                                 baseos                                  297 k
 iwl2000-firmware                                     noarch                               18.168.6.1-124.el8_10.1                                                 baseos                                  291 k
 iwl2030-firmware                                     noarch                               18.168.6.1-124.el8_10.1                                                 baseos                                  300 k
 iwl3160-firmware                                     noarch                               1:25.30.13.0-124.el8_10.1                                               baseos                                  531 k
 iwl5000-firmware                                     noarch                               8.83.5.1_1-124.el8_10.1                                                 baseos                                  201 k
 iwl5150-firmware                                     noarch                               8.24.2.2-124.el8_10.1                                                   baseos                                  201 k
 iwl6000-firmware                                     noarch                               9.221.4.1-124.el8_10.1                                                  baseos                                  221 k
 iwl6000g2a-firmware                                  noarch                               18.168.6.1-124.el8_10.1                                                 baseos                                  274 k
 iwl6050-firmware                                     noarch                               41.28.5.1-124.el8_10.1                                                  baseos                                  228 k
 iwl7260-firmware                                     noarch                               1:25.30.13.0-124.el8_10.1                                               baseos                                   23 M
 kernel-headers                                       x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   12 M
 kernel-tools                                         x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   11 M
 kernel-tools-libs                                    x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   10 M
 kexec-tools                                          x86_64                               2.0.26-14.el8_10.2                                                      baseos                                  531 k
 libldb                                               x86_64                               2.8.0-1.el8_10                                                          baseos                                  191 k
 libnetapi                                            x86_64                               4.19.4-5.el8_10                                                         baseos                                  216 k
 libsmbclient                                         x86_64                               4.19.4-5.el8_10                                                         baseos                                  155 k
 libuser                                              x86_64                               0.62-26.el8_10                                                          baseos                                  413 k
 libwbclient                                          x86_64                               4.19.4-5.el8_10                                                         baseos                                  128 k
 linux-firmware                                       noarch                               20240827-124.git3cff7109.el8_10                                         baseos                                  370 M
 nano                                                 x86_64                               2.9.8-3.el8_10                                                          baseos                                  580 k
 nss                                                  x86_64                               3.101.0-7.el8_8                                                         appstream                               764 k
 nss-softokn                                          x86_64                               3.101.0-7.el8_8                                                         appstream                               530 k
 nss-softokn-freebl                                   x86_64                               3.101.0-7.el8_8                                                         appstream                               391 k
 nss-sysinit                                          x86_64                               3.101.0-7.el8_8                                                         appstream                                75 k
 nss-util                                             x86_64                               3.101.0-7.el8_8                                                         appstream                               141 k
 platform-python                                      x86_64                               3.6.8-67.el8_10.alma.1                                                  baseos                                   87 k
 python3-firewall                                     noarch                               0.9.11-9.el8_10                                                         baseos                                  436 k
 python3-libs                                         x86_64                               3.6.8-67.el8_10.alma.1                                                  baseos                                  7.9 M
 python3-perf                                         x86_64                               4.18.0-553.22.1.el8_10                                                  baseos                                   11 M
 qemu-guest-agent                                     x86_64                               15:6.2.0-53.module_el8.10.0+3897+eb84924d                               appstream                               369 k
 samba                                                x86_64                               4.19.4-5.el8_10                                                         baseos                                  1.0 M
 samba-client                                         x86_64                               4.19.4-5.el8_10                                                         baseos                                  741 k
 samba-client-libs                                    x86_64                               4.19.4-5.el8_10                                                         baseos                                  5.0 M
 samba-common                                         noarch                               4.19.4-5.el8_10                                                         baseos                                  233 k
 samba-common-libs                                    x86_64                               4.19.4-5.el8_10                                                         baseos                                  182 k
 samba-common-tools                                   x86_64                               4.19.4-5.el8_10                                                         baseos                                  541 k
 samba-dcerpc                                         x86_64                               4.19.4-5.el8_10                                                         baseos                                  755 k
 samba-ldb-ldap-modules                               x86_64                               4.19.4-5.el8_10                                                         baseos                                  112 k
 samba-libs                                           x86_64                               4.19.4-5.el8_10                                                         baseos                                  202 k
 systemd                                              x86_64                               239-82.el8_10.2                                                         baseos                                  3.6 M
 systemd-libs                                         x86_64                               239-82.el8_10.2                                                         baseos                                  1.1 M
 systemd-pam                                          x86_64                               239-82.el8_10.2                                                         baseos                                  512 k
 systemd-udev                                         x86_64                               239-82.el8_10.2                                                         baseos                                  1.6 M
Removing:
 kernel                                               x86_64                               4.18.0-553.5.1.el8_10                                                   @baseos                                   0
 kernel-core                                          x86_64                               4.18.0-553.5.1.el8_10                                                   @baseos                                  71 M
 kernel-modules                                       x86_64                               4.18.0-553.5.1.el8_10                                                   @baseos                                  25 M

Transaction Summary
=================================================================================================================================================================================================================
Install   3 Packages
Upgrade  64 Packages
Remove    3 Packages

Total download size: 571 M
Is this ok [y/N]: y
Downloading Packages:
                                                                                          [                  ===                                                               ] ---  B/s |   0  B     --:-- ETA
The downloaded packages were saved in cache until the next successful transaction.
You can remove cached packages by executing 'dnf clean packages'.
Error: Error downloading packages:
  Status code: 503 for https://mirrors.fedoraproject.org/metalink?repo=epel-8&arch=x86_64&infra=stock&content=almalinux (IP: 2a05:d01c:c6a:cc01:269:da52:9ae1:43e6)

The HTTP status code 503 means that the server is currently unable to handle the incoming requests.

The server in question was mirrors.fedoraproject.org and the request was to get list of EPEL mirrors. In other words, the fedoraproject had a hiccup. Most likely a temporary one, since some info from EPEL had been received in order to generate the list of packages to update.

I’d just rerun. If it still fails, then report to EPEL (as issue is not in repos of AlmaLinux).