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This seems very strange:

I have a MariaDB Galera cluster with three nodes, and each node has virtually the same configuration.

Since it's a Galera cluster, the database users are the same across all three nodes.

On node 1 and node 2 I get the expected hostname for the user:

mariadb --no-defaults -utheusername -p'thepassword' -h127.0.0.1 -e"select user()"
+-----------------------+
| user()                |
+-----------------------+
| theusername@127.0.0.1 |
+-----------------------+

However, on the third node it always ignores the request to use host 127.0.0.1 and replaces this with localhost:

mariadb --no-defaults -utheusername -p'thepassword' -h127.0.0.1 -e"select user()"
+-----------------------+
| user()                |
+-----------------------+
| theusername@localhost |
+-----------------------+

If I instead log in interactively (remove the -e option) and run the status command, it shows that the connection is over TCP/IP (not socket although the user's host is still localhost) on all the nodes:

Connection:     127.0.0.1 via TCP/IP 

What could be the reason for this?

dbdemon
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