[rrd-users] Re: rrdtool graph --lazy option

[Tobias Oetiker]

Jul 23 Alex van den Bogaerdt wrote:

 |
 | Mike Papper wrote:
 |
 | > I am using the --lazy option when generating graphs and this is the
 | > behaviour I see after generating a graph at least once:
 | >
 | > if the RRD itself has changed, but no graphing parameters are changed the
 | > graph is not regenerated.
 |
 | This is, indeed, not correct.  First things first: are you *very* *sure*
 | that the graph is not regenerated?  Looking in your browser is not enough,
 | you must look at the files timestamp.
 |
 | > I was hoping that if the RRD (meaning any one of the RRDs that the graph
 | > refers to) is updated the --lazy option would regenerate the graph but this
 | > does not appear to be the case...
 |
 | The way --lazy *should* work is exactly that.  If the timestamp of the
 | image file is older than the timestamp of any of the RRD files, the
 | image should be regenerated.
 |
 | please let me know if the image file is not updated.

what the lazy option does, is looking at the resolution of the
graph, say one pixle represents 1 day, so it will only update the
graph if the graph is older than 1 day regardles of the last update
times of the rrd files involved

tobi

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