nagios外部插件nrpe安装

最新推荐文章于 2024-06-08 23:28:53 发布

清霄

最新推荐文章于 2024-06-08 23:28:53 发布

阅读量974

点赞数

CC 4.0 BY-SA版权

分类专栏： linux服务篇

本文链接：https://blog.youkuaiyun.com/cwg_1992/article/details/16986777

linux服务篇专栏收录该内容

41 篇文章

订阅专栏

本文介绍如何使用Nagios与NRPE插件进行远程监控，包括NRPE的安装配置步骤及Nagios的配置方法，适用于监控Oracle数据库等场景。

nagios安装：http://blog.youkuaiyun.com/cwg_1992/article/details/16967239

nagios配置：http://blog.youkuaiyun.com/cwg_1992/article/details/16984365

外部插件nrpe的安装，监控oracle

1～4步被监控的主机上执行

1.获取nrpe

http://jaist.dl.sourceforge.net/project/nagios/nrpe-2.x/nrpe-2.15/nrpe-2.15.tar.gz

2.安装nagios插件

异步至nagios安装：http://blog.youkuaiyun.com/cwg_1992/article/details/16967239

# cd /usr/src/
# tar -zxvf nagios-plugins-1.5.tar.gz
# cd nagios-plugins-1.5
# ./configure --prefix=/usr/local/nagios
# useradd -s /sbin/nologin nagios
# make && make install

3.安装NRPE插件

# pwd
/usr/src
# tar -zxvf nrpe-2.15.tar.gz
# cd nrpe-2.15
# ./configure
# make all
# make install-plugin
# make install-daemon
# make install-daemon-config

4.配置和启动nrpe

# cd /usr/local/nagios/etc/
# cat nrpe.cfg 
log_facility=daemon
pid_file=/var/run/nrpe.pid
server_port=5666
nrpe_user=oracle
nrpe_group=oinstall
allowed_hosts=192.168.10.166
dont_blame_nrpe=0
allow_bash_command_substitution=0
debug=0
command_timeout=60
connection_timeout=300
command[check_users]=/usr/local/nagios/libexec/check_users -w 5 -c 10        //定义的子命令 详情执行/usr/local/nagios/libexec/commond --help获得
command[check_load]=/usr/local/nagios/libexec/check_load -w 15,10,5 -c 30,25,20
command[check_hda1]=/usr/local/nagios/libexec/check_disk -w 20% -c 10% -p /dev/hda1
command[check_zombie_procs]=/usr/local/nagios/libexec/check_procs -w 5 -c 10 -s Z
command[check_total_procs]=/usr/local/nagios/libexec/check_procs -w 150 -c 200
command[check_cache]=/usr/local/nagios/libexec/check_oracle --cache TEST system test system        //检测表空间cache
command[check_tabsp]=/usr/local/nagios/libexec/check_oracle --tablespace TEST system test system 90 80      //检测表空间
command[check_db]=/usr/local/nagios/libexec/check_oracle --db TEST    //检测实例
command[check_login]=/usr/local/nagios/libexec/check_oracle --login TEST       //检测登录
# /usr/local/nagios/bin/nrpe -4 -d -c /usr/local/nagios/etc/nrpe.cfg //启动服务

测试nrpe子命令的配置

例子：

[root@RAC1 etc]# /usr/local/nagios/libexec/check_oracle --cache TEST system test system
/usr/local/nagios/libexec/check_oracle: line 206: [: system: unary operator expected
/usr/local/nagios/libexec/check_oracle: line 244: [: system: integer expression expected
/usr/local/nagios/libexec/check_oracle: line 248: [: -o: integer expression expected
TEST OK - Cache Hit Rates: 99.20% Lib -- 98.80% Buff|lib=99.20%;;system;0;100 buffer=98.80%;;system;0;100
[root@RAC1 etc]# /usr/local/nagios/libexec/check_oracle --tablespace TEST system test system 90 80
/usr/local/nagios/libexec/check_oracle: line 284: [: : integer expression expected
/usr/local/nagios/libexec/check_oracle: line 288: [: : integer expression expected
/usr/local/nagios/libexec/check_oracle: line 292: [: : integer expression expected
TEST : system OK - % used [  /  MB available ]|system=%;80;90;0;100
[root@RAC1 etc]# /usr/local/nagios/libexec/check_oracle --db TEST
TEST Database is DOWN
[root@RAC1 etc]# /usr/local/nagios/libexec/check_oracle --db TEST3
TEST3 OK - 1 PMON process(es) running

以防万一修改check_oracle脚本加上oracle-home和SID

# sed -n '12p;13p' /usr/local/nagios/libexec/check_oracle   //在12行和第13上加上如下内容
ORACLE_HOME=/oracle/ora/12.0.1
ORACLE_SID=TEST3

7.测试NRPE

在监控服务器上（nagios服务器）

/usr/local/nagios/libexec/check_nrpe -H 192.168.10.168 -c check_tabsp     //命令格式-H指定主机 -c指定子命令 nrpe.cfg 中指定的
TEST : system OK - % used [  /  MB available ]|system=%;80;90;0;100

6.配置nagios

# pwd
/usr/local/nagios/etc     //加上如下内容
# tail -4 objects/commands.cfg
define command{
    command_name    check_nrpe
        command_line    $USER1$/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ 
    }
# cat objects/service.cfg 
#############OGG_MASTER######################
define service{
        use                             oracleogg         
        host_name                       OGG_master
        service_description             NRPE
        check_command                   check_nrpe!check_load
        notifications_enabled           0
        }
#############OGG_SLAVE######################
define service{
        use                             oracleogg         
        host_name                       OGG_slave
        service_description             NRPE
        check_command                   check_nrpe!check_load
        notifications_enabled           0
        }
# cat objects/hosts.cfg     //定义主机
define host{
    use        oggnode
    host_name    OGG_master
    alias        GGmaster
    address        127.0.0.1
}
define host{
        use             oggnode
        host_name       OGG_slave
        alias           GGslave
        address         192.168.10.168
}
define hostgroup{
    hostgroup_name    oracle_ogg
    alias        goldenget
    members        OGG_master,OGG_slave
}

7.重启服务收工

# /etc/init.d/nagios restart
# /etc/init.d/httpd restart

打完收工

##############################

本文由笔者原创

作者：john

转载请注明出处