With this tutorial: https://mariadb.com/resources/blog/installing-mariadb-10-on-centos-7-rhel-7/

Use is ali cloud server,

Error message:
https://dlm.mariadb.com/repo/maxscale/latest/rhel/7/x86_64/repodata/repomd.xml: [Errno 12] a Timeout on https://storage.googleapis.com/downloads-cdn.mariadb.com/mariadbmaxscale/2.5/2.5.6/rhel/7/x86_64/repodata/repomd.xml? GoogleAccessId=downloads-sync@downloads-234321.iam.gserviceaccount.com & amp; Expires=1608720552 & amp; Signature=hDDW1D1J9krPd9siMbHONFTRQCeY3fOairSFZ25a34nKU4qCar6tg47UXTACcnQUP0sl2zXgbEqn + bxoH6Vpqq4ZXWJUxOn + DR8jyTl2Wsn52trYhF7sTRJSd im5hhR9f0qylv1788Ky4XvirQQLUDQ0lrOcFEKuwj1v6TrdRcIvvQweaYr7h2kCF1oz0xMKIB37KU/ETPmyXsAgEl4WvpvZWmWROBF2ReKHLlOdMWHT0uEnxpBoPRnvcBhjI7u6g/9 ob7ely7wvayz OeXdS4yMcNY1OQLRfguygcr8Ufn/lDFT1TfQfcFrgJaDH5Z + 4 yhopv3rdpu6cpvxl + Jnw==: (28, 'Operation too missile. Less than 1000 bytes/SEC transferred the last 30 seconds')
Trying other mirror.

But wait a minute installation is successful,

Have a wall or how to return a responsibility? How to solve?

And slow download speed is how to return a responsibility? Can solve?
(8/9) : MariaDB server - 10.5.8-1. El7. Centos. X86_64. RPM 69% [==================================-] 77 kB/s | 36 MB 00:03:26 ETA