logfile

check_logfile

Checks logfiles or any other text format file for errors or other general patterns

• Examples
• Argument Defaults
• Attributes

Implementation

Windows	Linux	FreeBSD	MacOSX
✅	✅	✅	✅

Examples

Example using NRPE and Naemon

Naemon Config

define command{
    command_name         check_nrpe
    command_line         $USER1$/check_nrpe -H $HOSTADDRESS$ -n -c $ARG1$ -a $ARG2$
}

define service {
    host_name            testhost
    service_description  check_logfile
    use                  generic-service
    check_command        check_nrpe!check_logfile!
}

Argument Defaults

Argument	Default Value
empty-state	3 (UNKNOWN)
empty-syntax	%(status) - No files found
top-syntax	%(status) - %(problem_count)/%(count) lines (%(count)) %(problem_list)
ok-syntax	%(status) - All %(count) / %(total) Lines OK
detail-syntax	%(line)

Check Specific Arguments

Argument	Description
column-split	Tab split default: \t
file	The file that should be checked
files	Comma separated list of files
label	label:pattern => If the pattern is matched in a line the line will have the label set as detail
line-split	Character string used to split a file into several lines (default \n)

Attributes

Filter Keywords

these can be used in filters and thresholds (along with the default attributes):

Attribute	Description
count	Number of items matching the filter. Common option for all checks.
filename	The name of the file
line	Match the content of an entire line
columnN	Match the content of the N-th column only if enough columns exists