Hi, Honza!
there are apparently some tools out there [1], that check if the server
is up quite often, while not closing the connection properly. It
eventually ends in 'many connection errors', because max_connect_errors
is always limited now.
[1] https://bugzilla.redhat.com/show_bug.cgi?id=1104957
What's the status of that?
Was any workaround (skip-name-resolve, max_connect_errors=4294967295 or
FLUSH HOSTS, which can be run periodically with CREATE EVENT) considered
good enough? I see that the bug is closed as NOTABUG.