nagios监控mysql服务

原文：http://www.weiruoyu.cn/?p=750

首先感谢51cto的Bensen仁兄的文章，按照做，没问题，谢谢。

地址：http://myhat.blog.51cto.com/blog/391263/654830

http://myhat.blog.51cto.com/391263/654952

nagios安装后，libexec里没有check_mysql怎么办？

nagios监控mysql服务器：
方法：定期去select下某个空闲的数据库
使用插件：check_mysql
问题：安装完成nagios后，发现居然没有这个插件，怎么办？
解决方法：
# yum install mysql-devel <我系统默认没装mysql的>
重装下nagios-plugins插件包
[root@svr4 nagios-plugins-1.4.15]# ./configure
 --with-apt-get-command:
 --with-ping6-command: /bin/ping6 -n -U -w %d -c %d %s
 --with-ping-command: /bin/ping -n -U -w %d -c %d %s
 --with-ipv6: yes
 --with-mysql: /usr/bin/mysql_config
 --with-openssl: yes
 --with-gnutls: no
 --enable-extra-opts: no
 --with-perl: /usr/bin/perl
 --enable-perl-modules: no
 --with-cgiurl: /nagios/cgi-bin
 --with-trusted-path: /bin:/sbin:/usr/bin:/usr/sbin
 --enable-libtap: no
[root@svr4 nagios-plugins-1.4.15]# make && make install
结果：这个插件有了！
[root@svr4 nagios-plugins-1.4.15]# ll /usr/local/nagios/libexec/check_mysql*
-rwxr-xr-x 1 root root 124343 Aug 31 13:13 /usr/local/nagios/libexec/check_mysql
-rwxr-xr-x 1 root root 120909 Aug 31 13:13 /usr/local/nagios/libexec/check_mysql_query

nagios使用check_mysql监控mysql

nagios监控mysql服务器：
1、建立专用数据库：
[root@svr3 ~]# /usr/local/webserver/mysql/bin/mysql -u root -p
Enter password:
Welcome to the MySQL monitor. Commands end with ; or \g.
Your MySQL connection id is 51910
Server version: 5.5.3-m3-log Source distribution
Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
mysql> create database nagios;
Query OK, 1 row affected (0.00 sec)
mysql> grant select on nagios.* to nagios@'%' identified by '123qweasd';
Query OK, 0 rows affected (0.00 sec)
mysql> flush privileges;
Query OK, 0 rows affected (0.00 sec)
mysql> select User,Password,Host from user;
+----------------+-------------------------------------------+------------------+
| User | Password | Host |
+----------------+-------------------------------------------+------------------+
| root | *84BB5DF4823DA319BBF86C99624479A198E6EEE9 | localhost |
| nagios | *A1F1CB851D62F002C09A0C9C4A76262473432F55 | % |
+----------------+-------------------------------------------+------------------+
14 rows in set (0.00 sec)
12 rows in set (0.00 sec)
[root@svr3 ~]# /usr/local/nagios/libexec/check_mysql -H 10.1.1.30 -u nagios -d nagios -p 123qweasd
Uptime: 970046 Threads: 1 Questions: 684583 Slow queries: 3 Opens: 672 Flush tables: 1 Open tables:
369 Queries per second avg: 0.705
[root@svr4 nrpe_install]# /usr/local/nagios/libexec/check_mysql -H 10.1.1.30 -u nagios -d nagios -p 123qweasd
Uptime: 970348 Threads: 1 Questions: 684584 Slow queries: 3 Opens: 672 Flush tables: 1 Open tables: 369 Queries per second avg: 0.705
果断开始设置：
#定义用户
#定义组，及隶属用户
#用户增加
在command.cfg里增加插件命令：
#check mysql
define command{
command_name check_mysql
command_line $USER1$/check_mysql -H $HOSTADDRESS$ -u nagios -d nagios -p 123qweasd
}
#定义服务：
define service {
 host_name svr3.labexam.com
 service_description MysqlDB
 check_period 24x7
 max_check_attempts 2
 normal_check_interval 1
 retry_check_interval 1
 contact_groups sagroup,dbagroup
 notification_interval 5
 notification_period 24x7
 notification_options w,u,c,r
 check_command check_mysql
}
感谢秋香老师，你的书给了我很大帮助。