Linux Nagios/NRPE 给出“插件没有返回输出”错误
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Nagios/NRPE giving a "No output returned from plugin" error
提问by Rick
Getting a "No output returned from plugin" error message from a Nagios/NRPE script
从 Nagios/NRPE 脚本获取“插件没有返回输出”错误消息
1) Running Nagios v3.2.3 and NRPE v2.12
1) 运行 Nagios v3.2.3 和 NRPE v2.12
2) The script:
2）脚本：
OK_STATE=0
UNAME=/bin/uname -r
echo "OK: Kernel Version=$UNAME"
exit $OK_STATE
2) Command line results on the Nagios Server using NRPE
2) 使用 NRPE 在 Nagios Server 上的命令行结果
- Same OK results for both the root and nagios users:
- root 和 nagios 用户的结果相同：
[nagios@cmonmm03 libexec]$ ./check_nrpe -H dappsi01b.dev.screenscape.local -c check_kernel OK: Kernel Version=2.6.18-194.11.3.el5
[nagios@cmonmm03 libexec]$ ./check_nrpe -H dappsi01b.dev.screenscape.local -c check_kernel OK：内核版本=2.6.18-194.11.3.el5
When I run the check_kernel.sh script on the machine's local command line it works there to.
当我在机器的本地命令行上运行 check_kernel.sh 脚本时，它可以在那里工作。
Help, any thoughts or known solution regarding this would be appreciated?
帮助，关于此的任何想法或已知解决方案将不胜感激？
Thank you
谢谢
回答by timd
Did you add the nagios host to the /etc/xinetd.nrpe.cfg file? Specifically, the only_from line typically includes the localhost (on the remote system). Make sure to add the IPs of your nagios host there as well:
您是否将 nagios 主机添加到 /etc/xinetd.nrpe.cfg 文件中？具体来说， only_from 行通常包括本地主机（在远程系统上）。确保在那里添加你的 nagios 主机的 IP：
# default: on
# description: NRPE (Nagios Remote Plugin Executor)
service nrpe
{
flags = REUSE
socket_type = stream
port = 5666
wait = no
user = nagios
group = nagios
server = /usr/local/nagios/bin/nrpe
server_args = -c /usr/local/nagios/etc/nrpe.cfg --inetd
log_on_failure += USERID
disable = no
only_from = 127.0.0.1 192.168.1.61
}
回答by Raman
Your command does not take any arguments, but it is likely the command definition for check_nrpe does define an argument parameter, for example:
您的命令不带任何参数，但 check_nrpe 的命令定义可能确实定义了一个参数参数，例如：
define command{
command_name check_nrpe
command_line /usr/lib64/nagios/plugins/check_nrpe -H $HOSTADDRESS$ -c $ARG1$ -a $ARG2$
}
Therefore, try placing a dummy argument in the service definition:
因此，尝试在服务定义中放置一个虚拟参数：
define service{
use normal-service
host_name hostname
service_description Description
check_command check_nrpe!check_foo!placeholder
}
