I'm using Aurora. When using two or more multi replica read db, a problem occurs when sending a kill query when query timeout occurs.
The problem occurs because of Aurora's cluster endpoint policy. Aurora provides a cluster endpoint for read db load balance, and the cluster endpoint's IP connected to DNS changes sequentially.
MariaDB Driver sends a kill query using domain. As a result, a situation occurs where a kill query may be sent to a db other than the db where the actual query is performed.

To solve this problem, I request that the kill query be sent to the IP rather than the domain.

[orginal code]
https://github.com/mariadb-corporation/mariadb-connector-j/blob/28f1269b0df58cd87fbb4fa3e44021e440e34c2f/src/main/java/org/mariadb/jdbc/internal/protocol/AbstractQueryProtocol.java#L1365C29-L1365C29

I request changes as shown below.

copiedProtocol.setHostAddress(new HostAddress(this.getSocket().getInetAddress().getCanonicalHostName(), this.getHostAddress().port, this.getHostAddress().type));