MySQL package update can impact OpenStack deployments

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A recent security update to the MySQL Ubuntu deb packages can break authentication with connecting clients. This can potentially have a significant impact on Charmed OpenStack deployments. A fix is underway.

After upgrading and restarting both mysql-router (does not happen automatically) and mysql server (does happen automatically) to the new 8.0.32 version clients using the pymysql library and connecting via mysql-router will fail to connect.

See bug LP# 2003835 for details.

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This is now fixed. For existing deployments, on all mysql-innodb-cluster and mysql-router units, upgrade MySQL packages and restart the mysql-router service.

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