Log format

The supported log format is as follows:

<timestamp> "<http-verb> <path> <http-version>" <responsetime>

• timestamp: %d/%b/%Y:%H:%M:%S %z

• http-verb: GET, POST

• path: the requested URL path

• http-version: e.g. HTTP/1.1

• responsetime in seconds, e. g. 0.5

Example:

17/May/2011:14:11:18 +0200 "GET /index.html HTTP/1.1" 0.289

An example configuration for the nginx server looks like this:

http {
    log_format timing '$time_local "$request" $upstream_response_time';

    server {
        access_log /path/to/timing.log timing;
    }
}

Future directions

One obvious additional feature is the ability to define thresholds (e.g. “a mean responsetime above 3 seconds is WARN, above 5 CRITICAL”)

Development

The source code is available in the mercurial repository at https://code.gocept.com/hg/public/nagios.responsetime

Please report any bugs you find to Wolfgang Schnerring.