Re: Update ex post?
Tobias Oetiker <[email protected]>
| Newsgroups | gmane.comp.db.rrdtool.devel |
|---|---|
| Message-ID | <[email protected]> |
Hi Till, Today Till Dörges wrote: > Hello everyone, > > I know that RRDtool doesn't support updates ex post and that this is by design. I've > looked around a bit and didn't manage to find a more a detailed reasoning as to why > this is so. So I'd be very curious about pointers or hints. the reason is that rrdtool 're-samples' data as you hand it to the tool and then stores it at the resolution set by --step and the different RRAs. The whole process is like a conveyor belt ... if you do not enter at the beginning things get complex ... > Along the same lines, RRDtool is in deed the best OSS tool I'm aware of for recording > and visualization of time series :-) - sometimes except for the missing ability to > provide updates for time slots in the past. I'm wondering how much effort would it > take to extend RRDtool to provide such a feature? (I've seen rrdgraph_libdbi which is > already kind of close if you don't worry about aggregation/consolidation.) have a look at: http://oss.oetiker.ch/rrdtool-trac/browser/trunk/contrib/rrdjig this might be an interesting basis for such a feature ... cheers tobi > TIA -- Till > -- Tobi Oetiker, OETIKER+PARTNER AG, Aarweg 15 CH-4600 Olten, Switzerland http://it.oetiker.ch [email protected] ++41 62 775 9902 / sb: -9900 _______________________________________________ rrd-developers mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-developers