Cactiusers.org

Another feature that would be hand is the ability to add in a VRULE marker to allow you to insert reference points into the host graphs. This would allow you to see correlation of information pre and post and event such as a new application installation. I though it would be similar to the 95th percentile marker but be based on a manually entered event for a given host.

The code to achieve this can be added to rrd_functions.php as posted by andy at:

http://forums.cacti.net/about587.html


But having a common interface where the host can be specified, comments inserted and the event date selected would be excellent. If the events were stored in an SQL table to allow searcing of criteria so that an event type could be located and all applicable devices affected by the event could be found.

My skills in this area are limited and wondered if anyone had looked at this aspect of cacti.
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This diff to rrd_functions.php allows you to specify, e.g. -24:00 in the VRULE Value to draw a line at 24 hours ago.

Replace in the VRULE section:

$value = date("U", mktime($value_array[0],$value_array[1],0));

with:

if($value_array[0] < 0) {
$value = date("U") - (-3600*$value_array[0]) - 60*$value_array[1];
} else {
$value = date("U", mktime($value_array[0],$value_array[1],0));
}
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