Nagios check_log help

Webster, Stuart SITI-ITDIUR Stuart.Webster at shell.com
Thu Jun 5 14:24:22 CEST 2003


Thanks for the extra info, i see how it should work now,
 
but when i try
 
./check_log -F test -O test_log_tmp -q WARNING
I get the same error
./check_log: test: argument expected
 
I have also tried with full path names.
the test log file, just contains random lines, with one line reading WARNING
 
does anyone know what im doing wrong?
 
Thanks
 
Stuart
-----Original Message-----
From: Dean Bishop [mailto:dbishop at ehvert.com]
Sent: 05 June 2003 13:59
To: Webster, Stuart SITI-ITDIUR; nagios-users at lists.sourceforge.net
Subject: RE: [Nagios-users] Nagios check_log help


Yes the -O is necessary for the script to keep track of where it left off.  The plugin is a perl script.  From the in-script comments:
 
# Description:
#
# This plugin will scan a log file (specified by the <log_file> option)
# for a specific pattern (specified by the <pattern> option).  Successive
# calls to the plugin script will only report *new* pattern matches in the
# log file, since an copy of the log file from the previous run is saved
# to <old_log_file>.
#
# Output:
#
# On the first run of the plugin, it will return an OK state with a message
# of "Log check data initialized".  On successive runs, it will return an OK
# state if *no* pattern matches have been found in the *difference* between the
# log file and the older copy of the log file.  If the plugin detects any
# pattern matches in the log diff, it will return a CRITICAL state and print
# out a message is the following format: "(x) last_match", where "x" is the
# total number of pattern matches found in the file and "last_match" is the
# last entry in the log file which matches the pattern.
#
# Notes:
#
# If you use this plugin make sure to keep the following in mind:
#
#    1.  The "max_attempts" value for the service should be 1, as this
#        will prevent Nagios from retrying the service check (the
#        next time the check is run it will not produce the same results).
#
#    2.  The "notify_recovery" value for the service should be 0, so that
#        Nagios does not notify you of "recoveries" for the check.  Since
#        pattern matches in the log file will only be reported once and not
#        the next time, there will always be "recoveries" for the service, even
#        though recoveries really don't apply to this type of check.
#
#    3.  You *must* supply a different <old_file_log> for each service that
#        you define to use this plugin script - even if the different services
#        check the same <log_file> for pattern matches.  This is necessary
#        because of the way the script operates.
 
 
 
 
-----Original Message-----
From: Webster, Stuart SITI-ITDIUR [mailto:Stuart.Webster at shell.com] 
Sent: June 5, 2003 7:19 AM
To: nagios-users at lists.sourceforge.net
Subject: [Nagios-users] Nagios check_log help
 
Hello 
Could some body please help me with this plugin,  and explain what the proper command line arguments should be. 
The documentations says: 
                                      
Usage: check_log -F logfile -O oldlog -q query 
Usage: check_log --help 
Usage: check_log --version 
i presume -F is the log file I want to check, and -q is the string I am searching the log for. 
I have tried 
#./check_log -F test_log -q WARNING 
this just goves the following error                
./check_log: test: argument expected. 
what is the -O for old log?? I only have 1 log file, is the -O necessary? 
the documentation for this plugin is very brief. 
Help Apreciated 
Stuart 
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