Comments on: NRPE check_file_age is a filthy liar http://blog.manjusri.org/2009/08/02/nrpe-check_file_age-is-a-filthy-liar/ Book Reviews and Blather Sat, 25 Jun 2011 22:50:21 +0000 hourly 1 http://wordpress.org/?v=3.2.1 By: binder http://blog.manjusri.org/2009/08/02/nrpe-check_file_age-is-a-filthy-liar/comment-page-1/#comment-723 binder Sat, 08 Jan 2011 22:19:18 +0000 http://blog.manjusri.org/?p=191#comment-723 That seems consistent with the problem I had in using variable substitution with NRPE. One (probably dumb) thing to try might be not using a variable in your remote server nrpe configuration but instead having a task in crontab which rewrites the line to have the right filename on a daily basis. Something like #!/bin/bash # update_nrpe TODAY=$(date +%Y%m%d) ### WARNING, completely untested, just an idea, do not use in production environment without testing. sed -e 's/db_demo_(.*)/${TODAY}/' /etc/nagios/nrpe_local.cfg > /etc/nagios/nrpe_local.cfg would remove the variable substitution from the nrpe processing. That seems consistent with the problem I had in using variable substitution with NRPE. One (probably dumb) thing to try might be not using a variable in your remote server nrpe configuration but instead having a task in crontab which rewrites the line to have the right filename on a daily basis. Something like

#!/bin/bash
# update_nrpe

TODAY=$(date +%Y%m%d)

### WARNING, completely untested, just an idea, do not use in production environment without testing.
sed -e ‘s/db_demo_(.*)/${TODAY}/’ /etc/nagios/nrpe_local.cfg > /etc/nagios/nrpe_local.cfg

would remove the variable substitution from the nrpe processing.

]]> By: maxidea http://blog.manjusri.org/2009/08/02/nrpe-check_file_age-is-a-filthy-liar/comment-page-1/#comment-722 maxidea Fri, 12 Nov 2010 03:11:58 +0000 http://blog.manjusri.org/?p=191#comment-722 Yes, I got same problem when I using check_file_age on a remote server to check a daily backup file. My configure as below: Remote server:command[check_db_backup_file]=/usr/local/nagios/libexec/check_file_age -w 86400 -c 93600 -f /u01/backup/db_demo_$(date +%Y%m%d.dmp).gz Monitoring sevrer: ./check_nrpe -H IPofRemoteServer -c check_db_backup_file Error: FILE_AGE CRITICAL: File not found - /u01/backup/db_demo_20101112.dmp.gz$ It also a bonus $ at the end... But I can run command on remote server with error: /usr/local/nagios/libexec/check_file_age -w 86400 -c 93600 -f /u01/backup/db_demo_$(date +%Y%m%d.dmp).gz FILE_AGE OK: /u01/backup/db_demo_20101112.dmp.gz is 33861 seconds old and 685676145 bytes Please let me know if any idea to fix it. Thanks! Yes, I got same problem when I using check_file_age on a remote server to check a daily backup file.
My configure as below:
Remote server:command[check_db_backup_file]=/usr/local/nagios/libexec/check_file_age -w 86400 -c 93600 -f /u01/backup/db_demo_$(date +%Y%m%d.dmp).gz

Monitoring sevrer: ./check_nrpe -H IPofRemoteServer -c check_db_backup_file

Error:
FILE_AGE CRITICAL: File not found – /u01/backup/db_demo_20101112.dmp.gz$

It also a bonus $ at the end…

But I can run command on remote server with error:
/usr/local/nagios/libexec/check_file_age -w 86400 -c 93600 -f /u01/backup/db_demo_$(date +%Y%m%d.dmp).gz
FILE_AGE OK: /u01/backup/db_demo_20101112.dmp.gz is 33861 seconds old and 685676145 bytes

Please let me know if any idea to fix it. Thanks!

]]>