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Diffstat (limited to 'doc/developer-guidelines.sgml')
| -rw-r--r-- | doc/developer-guidelines.sgml | 28 |
1 files changed, 20 insertions, 8 deletions
diff --git a/doc/developer-guidelines.sgml b/doc/developer-guidelines.sgml index 6b6f7357..599b2a16 100644 --- a/doc/developer-guidelines.sgml +++ b/doc/developer-guidelines.sgml @@ -83,10 +83,18 @@ STDOUT and not print to STDERR.</para> <section><title>Print only one line of text</title> - <para>Nagios will only grab the first line of text from STDOUT - when it notifies contacts about potential problems. If you print - multiple lines, you're out of luck (though this will be a feature of - Nagios 3). Remember, keep your output short and to the point.</para> + <para>Starting with version 3, Nagios will process plugins' multiline + output, which should be formatted as:</para> + <literallayout> + SERVICE STATUS: First line of output | First part of performance data + Any number of subsequent lines of output, but note that buffers + may have a limited size | Second part of performance data, which + may have continuation lines, too + </literallayout> + <para>Note, however, that the default configs still do not include + the output's continuation lines into the notifications sent when + Nagios notifies contacts about potential problems. + Thus, keep your output short and to the point.</para> <para>Output should be in the format:</para> <literallayout> @@ -315,10 +323,14 @@ </section> <section><title>Performance data</title> - <para>Performance data is defined by Nagios as "everything after the | of the plugin output" - - please refer to Nagios documentation for information on capturing this data to logfiles. - However, it is the responsibility of the plugin writer to ensure the - performance data is in a "Nagios plugins" format. + <para>Nagios 3 and newer will concatenate the parts following a "|" in a) the first + line output by the plugin, and b) in the second to last line, into a string it + passes to whatever performance data processing it has configured. (Note that it + currently does not insert additional whitespace between both, so the plugin needs + to provide some to prevent the last pair of a) and the first of b) getting run + together.) Please refer to the Nagios documentation for information on how to + configure such processing. However, it is the responsibility of the plugin writer + to ensure the performance data is in a "Nagios plugins" format. This is the expected format:</para> <literallayout> |