there is a howto to install mariadb 10 on CentOS 7 "Install MariaDB on CentOS 7: Step By Step | MariaDB". Is it possible to upgrade from version 5 and does it fit with ispconfig? Are existing wordpress/mariadb installations affected? Do they work after mariadb upgrade or what must be done? Has someone done this bevor and has some hints or a howto?
MariaDB 10 is compatible with ISPConfig. Here's a guide on upgrading between major MariaDB versions: https://mariadb.com/kb/en/upgrading-between-major-mariadb-versions/
upgrade to MariaDB version 10.10.3-1 worked fine, all websites working but db backup now fails and an error reported when opening phpMyAdmin: ispconfig.log: - ERROR - Failed to make backup of database "dbname", because mysqldump failed when opening phpMyAdmin: Notice in ./libraries/mysql_charsets.inc.php#49 Undefined index: Backtrace ./libraries/sqlparser.lib.php#42: include_once(./libraries/mysql_charsets.inc.php) ./libraries/common.inc.php#1055: include_once(./libraries/sqlparser.lib.php) ./index.php#12: require_once(./libraries/common.inc.php) Notice in ./index.php#305 Undefined index: utf8 Backtrace Any idea what goes wrong and how to fix it?
Regarding phpmyadmin, did you maybe upgrade the PHP version as well? To me, it looks like this might be an incompatibility between the PHPMyadmin version and the PHP version.
