I’m migrating sites on a development server, and noticed that Mysql crashes quite often. I took a closer look, and discovered that I have both MariaDB and MySQL. Should I remove mysql-common ? Or is this normal ?
$ dpkg -l | grep mysql
ii dovecot-mysql 1:2.2.9-1ubuntu2.1 amd64 secure POP3/IMAP server - MySQL support
ii libdbd-mysql-perl 4.025-1 amd64 Perl5 database interface to the MySQL database
ii libmysqlclient18 10.1.17+maria-1~trusty amd64 Virtual package to satisfy external depends
ii mariadb-common 10.1.17+maria-1~trusty all MariaDB database common files (e.g. /etc/mysql/conf.d/mariadb.cnf)
ii mysql-common 5.5.47-0ubuntu0.14.04.1 all MySQL database common files, e.g. /etc/mysql/my.cnf
rc mysql-server-5.5 5.5.40-0ubuntu0.14.04.1 amd64 MySQL database server binaries and system database setup
ii mysqltuner 1.2.0-1 all high-performance MySQL tuning script
ii percona-server-common-5.6 5.6.32-78.0-1.trusty amd64 Percona Server database common files (e.g. /etc/mysql/my.cnf)
ii php5.6-mysql 5.6.25-2+deb.sury.org~trusty+1 amd64 MySQL module for PHP
ii php7.0-mysql 7.0.10-2+deb.sury.org~trusty+1 amd64 MySQL module for PHP
/var/www ⌚ 12:47:30
$ dpkg -l | grep maria
ii libmariadbclient18 10.1.17+maria-1~trusty amd64 MariaDB database client library
ii libmysqlclient18 10.1.17+maria-1~trusty amd64 Virtual package to satisfy external depends
ii mariadb-client-10.1 10.1.17+maria-1~trusty amd64 MariaDB database client binaries
ii mariadb-client-core-10.1 10.1.17+maria-1~trusty amd64 MariaDB database core client binaries
ii mariadb-common 10.1.17+maria-1~trusty all MariaDB database common files (e.g. /etc/mysql/conf.d/mariadb.cnf)
ii mariadb-server 10.1.17+maria-1~trusty all MariaDB database server (metapackage depending on the latest version)
ii mariadb-server-10.1 10.1.17+maria-1~trusty amd64 MariaDB database server binaries
ii mariadb-server-core-10.1 10.1.17+maria-1~trusty amd64 MariaDB database core server files