cacti关于MYSQL的监控

yyyll

关于cacti 的安装配置，见之前的博文，本文接上篇cacti 短信报警http://chengchow.blog./1642666/1213367

1.下载插件到/downloads目录

插件见附件

2.解压缩

Cd /downloads

Tar xvf mysql-cacti-templates-1.1.2.tar

3.拷贝mysql插件到scripts目录

Cd /var/www/localhost/htdocs/cacti/

Cp /downloads/mysql-cacti-templates-1.1.2/ss_get_mysql_stats.phpscripts/.

4.修改ss_get_mysql_stats.php

Vi ss_get_mysql_stats.php

$mysql_user = 'cactiuser'; $mysql_pass = 'cactipass'; …… $cache_dir= '/var/www/localhost/htdocs/cacti/cache';

5.创建cach_dir目录，并赋予最大权限

Mkdir cache

Chmod 777 –R cache

Chown –R cactiuser:cactiuser cache

6.赋予cactiuser对数据库的数据采集权限

mysql -uroot -proot Welcome to the MySQL monitor.Commands end with ; or g. Your MySQL connection id is 129 Server version: 5.1.62-log Gentoo Linux mysql-5.1.62-r1 Copyright (c) 2000, 2011, Oracle and/or its affiliates. All rights reserved. Oracle is a registered trademark of Oracle Corporation and/or its affiliates. Other names may be trademarks of their respective owners. Type 'help;' or 'h' for help. Type 'c' to clear the current input statement. mysql> grant process, super, replication client on *.* to 'cactiuser'@'localhost' identified by 'cactipass'; Query OK, 0 rows affected (0.00 sec) mysql> grant process, super, replication client on *.* to 'cactiuser'@'%' identified by 'cactipass'; Query OK, 0 rows affected (0.00 sec) mysql> q

测试：

Mysql –ucactiuser –pcactipass –h localhost

PhpMyadmin下看权限

7.打开IE访问Cacti 网址

http://localhost/cacti

8.导入mysql监控模板

Consoleàimport templatesà浏览, 选择刚才解压文件中的

cacti_host_template_x_db_server_ht_0.8.6i.xml，点击import导入

Consoleàgraph templates，我们会看到如下图选项，导入成功。

9.添加一台有Mysql 服务的主机测试，主机需要安装net-snmp服务，添加方法

Console à devices àadd 出现如下界面，添加方法和普通主机一样，唯一的区别是Host Template中选择X DB Server HT（不选也行以后再添加，MYSQL监控表格比较多，以后添加比较麻烦），

然后将这台刚才添加的主机添加到graph tree里面，这样我们就可以去看监控图片了

时间比较短，只能贴张1小时的图片

10.遇到问题

10.1 日志报错

08/19/2013 11:55:05 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1062', SQL:"insert into poller_output (local_data_id, rrd_name, time, output) values (7, 'proc', '2013-08-19 23:55:04', '88')'
08/19/2013 11:55:04 PM - CMDPHP: Poller[0] ERROR: A DB Exec Failed!, Error:'1062', SQL:"insert into poller_output (local_data_id, rrd_name, time, output) values (6, 'users', '2013-08-19 23:55:04', '1')'
解决方法：
chmod 755 –R log rra
chown cactiuser:cactiuser –R log rra
不过做完以后日志的purge权限没了
10.2日志一堆警告
08/19/2013 11:45:04 PM - CMDPHP: Poller[0] Host[34] Description[MySQLtest01] DS[376] Graphs['MySQLtest01 - InnoDB Buffer Pool Activity'] WARNING: Result from CMD not valid. Partial Result: Can't connect to MyS
08/19/2013 11:45:04 PM - CMDPHP: Poller[0] Host[34] Description[MySQLtest01] DS[381] Graphs['MySQLtest01 - MySQL Sorts'] WARNING: Result from CMD not valid. Partial Result: Can't connect to MyS
其实日志已经说得很明白了，不能连接到MYSQL服务器，可惜我还是找了大半天，原来我的/include/config.inc默认密码是cactiuser，而这里设置的是cactipass，修改一样就可以了

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