Dear Ladies and Gentlemen, I am writing to ask how a Perl program can determine the order of the DS names from an RRD (to update it without hardcoding an update template or a DS sequence), if this is possible ?
I think this is relevant to the case where an application wishes to . update only one RRD (with a whole bunch of measurements) . reserve DS and RRAs in the RRD for future use (with generic names);some of the generic names will eventually be 'tuned into' production names and will be updated. . at run time determine the update template by asking (somehow) the RRD for the DS names and sequence. my @stuff = `rrdtoo info` provides this information but at the cost of a fork (and handling the possibility that fork() fails); RRDs::info provides the DS names but in hash key order, which usually differs from that of `rrdtool info`. Are there any other alternatives ? This is beginning to sound like a bad idea or vica versa, an argument for one RRD per logical measurement. RRDtool is simply a fantastic product, one that seems to find new applications for itself all the time - in this case, a giant single RRD (having one RRD makes enquiries easier), holding printer page counts. I sincerely hope that the author gets _all_ the DVDs he asks for and that they are a suitable and satisfying reward for something I am very grateful. Thank you, Yours sincerely. -- ------------------------------------------------------------------------ Stanley Hopcroft ------------------------------------------------------------------------ '...No man is an island, entire of itself; every man is a piece of the continent, a part of the main. If a clod be washed away by the sea, Europe is the less, as well as if a promontory were, as well as if a manor of thy friend's or of thine own were. Any man's death diminishes me, because I am involved in mankind; and therefore never send to know for whom the bell tolls; it tolls for thee...' from Meditation 17, J Donne. -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
