Comment 6 for bug 1969927

Subscribing ~field-high.

This is now affecting one project where a customer is doing a migration from bionic to focal and percona-cluster to mysql-innodb-cluster + mysql-router. Initiating many connections from a unit with a bunch of workers was fine as long as the db server side has enough max_connections. However, after the migration, the client side of max_total_connections are making client initiated connections fail.