[rrd-users] RRD Wishlist: Adding comments to RRD created graphs

[Leif Neland]

Rob Newman wrote:
> Hi RRD folks,
>
> I know this is probably going to garner a 'nope, can't do that
> response', but I was wondering if the RRD developers (Tobi et al) had
> considered the capability of users adding comments to RRD files along
> the lines of timestamp:comment string that could be added in the
> header of an RRD archive. These comments could then be plotted on the
> graphical output when RRDtool graph is called.
>
 <comments>
 <!-- 2007-06-01 02:46:40 PDT / epochtime --> <row><v>New 
instrument</v></row>
 <!-- 2007-05-01 02:46:40 PDT / epochtime --> <row><v>Mass 
recenter</v></row>
 </comments>

One reason to turn this down is that rrd-files always have the same size, 
the "slots" for data are allocated when the rrd is created.
Adding comments would break this. Unless you allocated slots for x messages 
of y chars at creation.

Leif