Unable to determine memory usage
Nagios报错如下***** Nagios *****
Notification Type: PROBLEM
Service: MEM_USE
Host: s3
Address: 10.10.16.103
State: UNKNOWN
Date/Time: Tue Jun 28 17:41:42 CST 2016
Additional Info:
Unable to determine memory usage.
解决过程：
1、根据Service：MEM_USE在文件/etc/nagios/objects/hosts/s3.cfg中找到相应配置
define service{
use generic-service ; Name of service template to use
host_name s3
service_description MEM_USE
check_command check_nrpe!check_mem_used
notifications_enabled 1
contact_groups admins,dxgroup
}
2、在s3上执行检查命令
[root@s3 ~]# /usr/local/nagios/libexec/check_mem.sh 85 90
/usr/local/nagios/libexec/check_mem.sh: line 57: /usr/bin/bc: 没有那个文件或目录
/usr/local/nagios/libexec/check_mem.sh: line 58: /usr/bin/bc: 没有那个文件或目录
/usr/local/nagios/libexec/check_mem.sh: line 69: bc: command not found
/usr/local/nagios/libexec/check_mem.sh: line 69: [: -eq: unary operator expected
/usr/local/nagios/libexec/check_mem.sh: line 72: bc: command not found
/usr/local/nagios/libexec/check_mem.sh: line 72: [: -eq: unary operator expected
/usr/local/nagios/libexec/check_mem.sh: line 75: bc: command not found
/usr/local/nagios/libexec/check_mem.sh: line 75: [: -eq: unary operator expected
Unable to determine memory usage.
3、按照第2步骤提示没有安装bc，安装bc
# yum -y install bc
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
* base: mirrors.yun-idc.com
* extras: mirror.bit.edu.cn
* updates: mirrors.yun-idc.com
4、安装完成后，再次执行
# /usr/local/nagios/libexec/check_mem.sh 85 90
OK - Memory usage is 2.200%
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