cat mysql.err 2020-02-16T12:43:20.935348Z 0 [Warning] [MY-010139] [Server] Changed limits: max_open_files: 1024 (requested 5000) 2020-02-16T12:43:20.935352Z 0 [Warning] [MY-010141] [Server] Changed limits: max_connections: 214 (requested 256) 2020-02-16T12:43:21.143974Z 0 [System] [MY-010116] [Server] /usr/sbin/mysqld (mysqld 8.0.19) starting as process 6065 2020-02-16T12:43:21.145993Z 0 [Warning] [MY-013242] [Server] --character-set-server: 'utf8' is currently an alias for the character set UTF8MB3, but will be an alias for UTF8MB4 in a future release. Please consider using UTF8MB4 in order to be unambiguous. 2020-02-16T12:43:21.146001Z 0 [Warning] [MY-013244] [Server] --collation-server: 'utf8_general_ci' is a collation of the deprecated character set UTF8MB3. Please consider using UTF8MB4 with an appropriate collation instead. 2020-02-16T12:43:29.894757Z 0 [Warning] [MY-010068] [Server] CA certificate ca.pem is self signed. 2020-02-16T12:43:29.902208Z 0 [ERROR] [MY-000067] [Server] unknown variable 'log_warnings=2'. 2020-02-16T12:43:29.902979Z 0 [ERROR] [MY-010119] [Server] Aborting 2020-02-16T12:43:33.750951Z 0 [System] [MY-010910] [Server] /usr/sbin/mysqld: Shutdown complete (mysqld 8.0.19) Gentoo Linux mysql-8.0.19-r1.