Hi, I'm using Mitaka on ubuntu 16.04 and I have many problems in horizon. I can see this in the logs of all components: "OperationalError: (pymysql.err.OperationalError) (1040, u'Too many connections')" If I increase the max_connections on mysql works well a few minutes but the same error. Maybe Openstack don't close connections with Mysql. The version of Mysql is 5.7.
Any suggestions? Regards, Fran
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