# For all the following commands HOME should be set to the directory that has .my.cnf file with password information.

# Flexible parameter to grab global variables. On the frontend side,use keys like MysqL.status[Com_insert].
# Key Syntax is MysqL.status[variable].
UserParameter=MysqL.status[*],echo "show global status where Variable_name='$1';" | HOME=/var/lib/zabbix MysqL -N | awk '{print $$2}'

# Flexible parameter to determine database or table size. On the frontend side,use keys like MysqL.size[zabbix,history,data].
# Key Syntax is MysqL.size[<database>,<table>,<type>].
# Database may be a database name or "all". Default is "all".
# Table may be a table name or "all". Default is "all".
# Type may be "data","index","free" or "both". Both is a sum of data and index. Default is "both".
# Database is mandatory if a table is specified. Type may be specified always.
# Returns value in bytes.
# 'sum' on data_length or index_length alone needed when we are getting this information for whole database instead of a single table
UserParameter=MysqL.size[*],bash -c 'echo "select sum($(case "$3" in both|"") echo "data_length+index_length";; data|index) echo "$3_length";; free) echo "data_free";; esac)) from information_schema.tables$([[ "$1" = "all" || ! "$1" ]] || echo " where table_schema=\"$1\"")$([[ "$2" = "all" || ! "$2" ]] || echo "and table_name=\"$2\"");" | HOME=/var/lib/zabbix MysqL -N'

UserParameter=MysqL.ping,HOME=/var/lib/zabbix MysqLadmin ping | grep -c alive
UserParameter=MysqL.version,MysqL -V

[root@ovirt-host-227 zabbix_agentd.d]# vi /var/lib/zabbix/.my.conf 
[client]

user=root

password=123456

#systemctl restart zabbix-agent

[root@centos7-zabbix-193 ~]# zabbix_get -s 10.10.200.227 -k MysqL.status[Bytes_received]                                                                                                                                                                                  
2835903
[root@centos7-zabbix-193 ~]# zabbix_get -s 10.10.200.227 -k MysqL.status[Com_update]                                                                                                                                                                                      
0