zabbix监控mysql

groupadd zabbix
 useradd -g zabbix -M -s /sbin/nologin zabbix
  tar zxvf zabbix-2.0.6.tar.gz 
 cd zabbix-2.0.6
./configure --enable-agent --prefix=/usr/local/zabbix
make
make install
[root@dota2 core]# pwd
/root/zabbix-2.0.6/misc/init.d/fedora/core
[root@dota2 core]# cp zabbix_agentd  /etc/init.d/
vi /etc/init.d/zabbix_agentd
修改BASEDIR=/usr/local/为BASEDIR=/usr/local/zabbix


修改配置文件：
[root@dota2 etc]# pwd
/usr/local/zabbix/etc
[root@dota2 etc]# vi zabbix_agentd.conf
PidFile=/tmp/zabbix_agentd.pid
LogFile=/tmp/zabbix_agentd.log
DebugLevel=3
Server=zabbix_server_ip
ServerActive=zabbix_server_ip
Hostname=new_web1          ###服务器网页中设置的名子一致即可

启动：
[root@dota2 etc]# /etc/init.d/zabbix_agentd  start
Starting zabbix_agentd:                                    [  OK  ]
[root@dota2 etc]# ps aux | grep zabbix
zabbix   20640  0.0  0.0  15884   672 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
zabbix   20642  0.0  0.0  15884   872 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
zabbix   20643  0.0  0.0  15884   484 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
zabbix   20644  0.0  0.0  15884   484 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
zabbix   20645  0.0  0.0  15884   484 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
zabbix   20646  0.0  0.0  15892   692 ?        S    22:15   0:00 /usr/local/zabbix/sbin/zabbix_agentd
root     20648  0.0  0.0 103244   832 pts/0    S+   22:15   0:00 grep zabbix
[root@dota2 etc]# netstat  -ln
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address               Foreign Address             State      
tcp        0      0 0.0.0.0:80                  0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:22                  0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:25                0.0.0.0:*                   LISTEN      
tcp        0      0 0.0.0.0:10050               0.0.0.0:*                   LISTEN      
tcp        0      0 127.0.0.1:9000              0.0.0.0:*                   LISTEN      
tcp        0      0 :::22                       :::*                        LISTEN      
tcp        0      0 ::1:25                      :::*                        LISTEN      
Active UNIX domain sockets (only servers)
......
......
......

5：在mysql所在机器上的/usr/local/zabbix/etc/zabbix_agentd.conf文件的
# Include=/usr/local/etc/zabbix_agentd.conf.d/下加入：
Include=/usr/local/zabbix/etc/zabbix_agentd.conf.d/userparameter_mysql.conf
userparameter_mysql.conf文件位于/usr/local/zabbix/etc/zabbix_agentd.conf.d/，内容如下：

[root@db zabbix_agentd.conf.d]# cat userparameter_mysql.conf
# 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=/usr/local/zabbix /data/mysql/bin/mysql -uroot -pk****601 -hlocalhost -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[*],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=/usr/local/zabbix /data/mysql/bin/mysql -uroot -pk*****601 -hlocalhost -N

UserParameter=mysql.ping,HOME=/usr/local/zabbix /data/mysql/bin/mysqladmin -uroot -pk***601 ping | grep -c alive
UserParameter=mysql.version,/data/mysql/bin/mysql -uroot -pk***601 -hlocalhost -V

#****替换为mysql的密码即可
重启服务/etc/init.d/zabbix_agentd  restart
将模板添加到机器上，然后即可显示相关信息！

过个几分钟就可以看到mysql的相关信息了！来个图片如下；

这种方式可以针对mysql5.5 或以前的版本，对应mysql5.6或以后的版本是有问题的，因为mysql -uroot -p'password'
会有报错！Warning: Using a password on the command line interface can be insecure.
解决方法：创建一个无密码的用户，有类似于root的权限，

那么为了解决这个问题，必须无密码登录才可以，为了安全起见，限定只能在localhost登录

先创建一个zabbix用户（创建用户,密码不能为空，否则报错）

grant all PRIVILEGES on *.* to zabbix@'localhost' identified by '123456';

设置密码为root

set password for 'root'@'localhost'=password("");

退出

exit;