After upgrading to Ubuntu 16.04, I couldn’t get Zabbix to run and was receiving the following
zabbix-server[3962]: /opt/sbin/zabbix_server: /usr/lib/libmysqlclient.so.18: version `libmysqlclient_18' not found (required by /opt/sbin/zabbix_server)
To fix this I needed to symlink the perconaclient library to the mysql client libraries that Zabbix was expecting.
apt-get install libperconaserverclient18 ln -s /usr/lib/x86_64-linux-gnu/libperconaserverclient.so.18 /usr/lib/libmysqlclient.so.18 ln -s /usr/lib/x86_64-linux-gnu/libperconaserverclient_r.so.18 /usr/lib/libmysqlclient_r.so.18 service zabbix-server restart service zabbix-agent restart