Plesk or system update fails on Linux: http://yum.mariadb.org/10.1/centos7-amd64/repodata/repomd.xml: [Errno 14] HTTP Error 404 – Not Found

Symptoms

• On a Plesk for Linux server, checking for system updates in Tools & Settings > System Updates fails:

  Error: Unable to receive update information for the package(s)

• Plesk Installer or system update fails with the error message:

  failure: repodata/repomd.xml from mariadb: [Errno 256] No more mirrors to try.
  http://yum.mariadb.org/10.1/centos7-amd64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

  ---

  failure: repodata/repomd.xml from mariadb: [Errno 256] No more mirrors to try.
  http://yum.mariadb.org/10.2/centos7-amd64/repodata/repomd.xml: [Errno 14] HTTP Error 404 - Not Found

  ---

  There are no products for your operating system
  ( 'CentOS' 'Linux' '7.9.2009' 'x86_64' ) available
  from the selected source.
  You can try using another source

Cause

Due to the fact that MariaDB 10.1 and 10.2 reached their end-of-life, the vendor have moved corresponding repositories to archive.

Resolution

It is strongly recommended to upgrade MariaDB server to the supported one (10.3 - 10.6, 10.11) using the steps from the article How to upgrade MySQL 5.5 to 5.6/5.7 or MariaDB 5.5 to 10.x on Linux?

If the upgrade is not possible for some reasons, apply the following workaround: