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Performance data

Multi performance labels

Basically the check_multi performance data format follows the performance data format described in the Plugin API document.

In order to provide the performance origin information (plugin type) to performance data interpreters the performance label format has been extended:

Standard performance dataswap=1786MB;0;0;0;2048
check_multi performance datasystem_swap::check_swap::swap=1786MB;0;0;0;2048

The performance data can (and probably will) consist of a chain of performance data from the particular child plugins - each headed by a multi label. The performance data tool reads this multi label and interprets the following perf data als belonging to the child plugin specified in the multi label (see example below)

The specification of the type of performance labels has to be done with the '-r' option (see here). Multi performance labels need '-r 8' while standard performance labels have to be configured with '-r 32'.

Multi label format

Multi Label :: Plugin Name / Template :: Performance Data
Service Description :: Plugin :: P-label=P-value [P-label=P-value] …

Examples

Service Description :: Template :: Performance Data
disk_root :: check_disk :: /=8286MB;11489;11852;0;12094
system_swap :: check_swap :: swap=1786MB;0;0;0;2048

PNP - which template will be chosen?

PNP determines the template to use for the performance data depending on the plugin. Normally the plugin is the first token behind the equal-sign: command [ swap ] = check_swap.
There are some special cases in which it is not clear which plugin is used: check_nt for example gathers performance date from different sources, but the plugin name remains check_nt.
check_multi provides a special type of tag command [ tag::plugin ] to solve this problem.

Discard invalid performance data

Every childs performance data is checked on the correctness of format (compare here). If a child check provides incorrect performance data it will be discarded with an error message because it could corrupt the whole remaining performance data.

Individual suppression of performance data

If you want some child checks not to show performance data, you can use --set suppress_perfdata=tag1,tag2,.... You have to provide a comma separated list of tags which performance data should not be shown.

Service Extinfo Example

projects/check_multi/configuration/performance.txt · Last modified: 2009/12/10 11:15 by flackem
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