message "NRPE:unable to read output"

[RIDS_I2MP]

Hi Team,

I am trying to monitor an AIX server, I have installed nrpe agent on the remote host but when I am trying to monitor server parameters I find "NRPE: unable to read output" message. Please find the attached snapshot for this.

When I run the same script on remote server I receive the required output.

I have set the permission for /usr/local/nagios/libexec as 755 and same permission for all scripts.

kindly help on this.

Thanks in advance.

[hsmith]

Does it work from the XI command line?

Can you post the nrpe.cfg from the remote server here for us to take a look at?

[gormank]

This is what it says when nothing was sent back to NRPE on STDOUT, among other things... I had a script that printed an error on STDERR, but returned 0 so the status was ok, and it said the exact same thing.

The troubleshooting guide has a section on this message:
https://assets.nagios.com/downloads/nag ... utions.pdf

[RIDS_I2MP]

No it is not working from XI command line.

Please find the below nrpe file.

[rkennedy]

What is the result when you run it over command line?

[RIDS_I2MP]

Hi,

Please find the attached snapshot. I am getting "NPRE: unable to read data" message when I am trying to run the command from Nagios server command line.

[rkennedy]

Can you also post the script that is linked to 'check_cpu_custom'?

[RIDS_I2MP]

I am unable to provide you the script of check_cpu_custom.

please find the details regarding check_disk, find the attached snapshot output when I am running the cmd from Nagios server also find the snapshot output on remote server which is required to be monitored.

[rkennedy]

This might have to do with permissions on the client machine.

On the client machine, can you run the following and post the output?

Code: Select all

ls -l /usr/local/nagios/libexec/

[lmiltchev]

command[check_disk]=/usr/local/nagios/libexec/check_disk $ARG1$

Is the path correct? Can you run the following commands on the client (remote machine) and show the output?

Code: Select all

/usr/local/nagios/libexec/check_disk -V
/usr/local/nagios/libexec/check_disk -w 15% -c 10% -p  /home

Have you restarted NRPE daemon (or xinetd) on the client after making changes in the nrpe.cfg, so that the changes can take effect?