Home Database Mysql Tutorial Cacti监控mysql数据库服务器实现过程_MySQL

Cacti监控mysql数据库服务器实现过程_MySQL

Jun 01, 2016 pm 01:12 PM
mysql database server monitor

前言:cacti服务器端安装请参考:http://blog.csdn.net/mchdba/article/details/27120605

1 先在cacti服务器端安装mysql模板

wgethttps://mysql-cacti-templates.googlecode.com/files/better-cacti-templates-1.1.8.tar.gz

tar –xvf better-cacti-templates-1.1.8.tar.gz

cd better-cacti-templates-1.1.8

将better-cacti-templates-1.1.8/scripts下的 ss_get_mysql_stats.php 这个脚本 这个脚本需要放在cacti的服务端。

比如cacti部署在/var/www/html目录下,那么就cp到/var/www/html/cacti/scripts/下

cp

/root/better-cacti-templates-1.1.8/scripts/ss_get_mysql_stats.php/var/www/html/cacti/scripts/

修改ss_get_mysql_stats.php文件 第30行

$mysql_user = 'cacti_user'; 
$mysql_pass = 'cacti'; 
$cache_dir = "/xok.la/cacti/cache/"; 

赋予apache账号操作权限

chown -R apache.apache/var/www/html/cacti/scripts

chmod -R 755 /var/www/html/cacti/scripts

使用http访问cacti主机导入:

/root/better-cacti-templates-1.1.8/templates/cacti_host_template_x_mysql_server_ht_0.8.6i-sver1.1.8.xml

2,建立mysql账号

在被监控的mysql服务器建立数据库的cacti账号,需要PROCESS, SUPER, REPLICATION CLIENT权限,SQL如下:

GRANT PROCESS, SUPER, REPLICATION CLIENT ON*.* TO 'cacti'@'%' IDENTIFIED BY '';

3,在cacti上面添加主机:

3.1点击Create devices

3.2进去之后再点击add按钮,添加主机

3.3 录入描述符和主机名或者IP地址,点击右下角的Create按钮即可。

3.4 界面报错如下:

看到在cacti中添加监控主机时,提示错误“SNMP error”,一般有2种处理办法:

(1),确定cacti所有的主机能ping通被监控主机;如果不能ping通,请确认网络配置和被监控主机的ip设置是否正确。

[root@squid-2 templates]# ping 10.xxx.3.xx

PING 10.254.3.72 (10.254.3.72) 56(84) bytesof data.

64 bytes from 10.xx.3.xx: icmp_seq=1 ttl=64time=0.427 ms

64 bytes from 10.xx.3.xx: icmp_seq=2 ttl=64time=0.389 ms

64 bytes from 10.xx.3.xx: icmp_seq=3 ttl=64time=0.402 ms

64 bytes from 10.xx.3.xx: icmp_seq=4 ttl=64time=0.415 ms

可以ping通,证明不是网络故障。

(2),确认被监控主机是否启用snmpd服务:

[root@xxx ~]# ps -eaf|grep snmpd

root     4540 27133  0 17:15 pts/0    00:00:00 grep snmpd

[root@xxx ~]#

[root@xxx ~]# service snmpd start

snmpd: 未被识别的服务

[root@xxx ~]#

被监控主机需要安装snmpd服务,使用yum -y install snmpd 安装snmpd服务。

[root@db-m2-slave-1 ~]# service snmpdrestart

snmpd: 未被识别的服务

[root@db-m2-slave-1 ~]#

[root@db-m2-slave-1 ~]# yum -y install snmp

Loaded plugins: fastestmirror, security

Loading mirror speeds from cached hostfile

 *base: mirror.neu.edu.cn

 *extras: mirror.neu.edu.cn

 *updates: mirror.neu.edu.cn

Setting up Install Process

No package snmp available.

Error: Nothing to do

Yum安装不了,试试yum install -y net-snmp,安装成功:

[root@db-m2-slave-1 ~]# yum install -ynet-snmp

Loaded plugins: fastestmirror, security

Loading mirror speeds from cached hostfile

 *base: mirror.neu.edu.cn

 *extras: mirror.neu.edu.cn

 *updates: mirror.neu.edu.cn

Setting up Install Process

Resolving Dependencies

--> Running transaction check

---> Package net-snmp.x86_641:5.5-49.el6_5.1 will be installed

--> Processing Dependency: net-snmp-libs= 1:5.5-49.el6_5.1 for package: 1:net-snmp-5.5-49.el6_5.1.x86_64

--> Processing Dependency:libsensors.so.4()(64bit) for package: 1:net-snmp-5.5-49.el6_5.1.x86_64

--> Processing Dependency:libnetsnmptrapd.so.20()(64bit) for package: 1:net-snmp-5.5-49.el6_5.1.x86_64

--> Processing Dependency:libnetsnmpmibs.so.20()(64bit) for package: 1:net-snmp-5.5-49.el6_5.1.x86_64

[root@db-m2-slave-1 ~]# service snmpdrestart

停止 snmpd:                                              [失败]

正在启动 snmpd:                                           [确定]

[root@db-m2-slave-1 ~]#

也可以用 service snmpd reload命令来重新加载。

(3),这个时候去看主机状态,正在恢复中:

然后也可以到cacti服务器上,运行snmpwalk来check下:

snmpwalk-c public -v 2c 10.xxx.1.xx    # (这个ip10.xxx.1.xx为被监控主机的ip地址)

如果能够接收到被监控机器的数据信息,则表示被监控主机的snmp配置已经完成,没有错误。

4,继续添加被监控主机的画图,增加graphs:

在Console界面右侧,点击Createdevices连接,如下图所示:

 Cacti监控mysql数据库服务器实现过程_MySQL

然后点击host主机名连接,如下:

然后点击右上角的Create Graphs for this Host 连接


在graphs下面添加tree,点击console,选择左边栏的Graphs Trees,点击右边的Add按钮,输入trees名字,选择排序类型为Natural Ordering,点击Create按钮创建。

之后选择创建好的graphs trees,点击add按钮往trees里面添加database主机,加完如下图:

之后点击最上面的graphs,就会出现

【待续编辑中】

参考:http://blog.csdn.net/hw_libo/article/details/6881480

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