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COLLECTD-NAGIOS

NAME

collectd−nagios − Nagios plugin for querying collectd

SYNOPSIS

collectd-nagios −s socket −n value_spec −H hostname [options]

DESCRIPTION

This small program is the glue between collectd and nagios. collectd collects various performance statistics which it provides via the "unixsock plugin", see collectd−unixsock(5). This program is called by Nagios, connects to the UNIX socket and reads the values from collectd. It then returns OKAY , WARNING or CRITICAL depending on the values and the ranges provided by Nagios.

ARGUMENTS AND OPTIONS

The following arguments and options are required and understood by collectd-nagios. The order of the arguments generally doesn’t matter, as long as no argument is passed more than once.
−s
socket

Path of the UNIX socket opened by collectd’s "unixsock plugin".

−n value_spec

The value to read from collectd. The argument is in the form "plugin[−instance]/type[−instance]".

−H hostname

Hostname to query the values for.

−d data_source

Each value_spec may be made of multiple "data sources". With this option you can select one or more data sources. To select multiple data sources simply specify this option again. If multiple data sources are examined they are handled according to the consolidation function given with the −g option.

−g none|average|sum

When multiple data sources are selected from a value spec they can be handled differently depending on this option. The values of the following meaning:
none

No consolidation if done and the warning and critical regions are applied to each value independently.

average

The warning and critical ranges are applied to the average of all values.

sum

The warning and critical ranges are applied to the sum of all values.

−c range
−w
range

Set the critical (−c) and warning (−w) ranges. These options mostly follow the normal syntax of Nagios plugins. The general format is "min:max". If a value if smaller than min or bigger than max a warning or critical is returned, otherwise okay is returned. min (and the colon) may be omitted and are then assumed to be zero. If max (but not the colon) is omitted max is set to positive infinity. If either min or max if set to ~ they are set to negative and positive infinity, respectively.

RETURN VALUE

As usual for Nagios plugins this program writes a short, one line status message to STDOUT and signals success or failure with it’s return value. It exists with a return value of 0 for success or 1 or 2 for warning and critical, respectively. If the values is not available or some other error occurred it returns 3 for "unknown".

SEE ALSO

collectd(1), collectd.conf(5), collectd−unixsock(5), <http://nagios.org/>

AUTHOR

Florian Forster <octo at verplant.org>

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