> -----Mensagem original----- > De: [EMAIL PROTECTED] [mailto:rrd-users- > [EMAIL PROTECTED] Em nome de Francesco Andreozzi > Enviada: sexta-feira, 3 de Outubro de 2008 12:08 > Para: [email protected] > Assunto: [rrd-users] problem with lost of data, file size always the > same! > > Hi all, this is my first post and i hope to be clear :D This is a case where a FTFM would be apropriate (http://oss.oetiker.ch/rrdtool/doc/rrdcreate.en.html), but let's try to figure a few things out.
> i have start to using rrd because seems to be really nice stuff.... > > i create a lot of rrd to collect data from a specific device ... > > i create an rrd with the command like this > > rrdtool create <RRDNAME.rrd> --start <my-date> \ > DS:<my-obj>:GAUGE:<my-time>0:U \ > RRA:MIN:0.5:12:1440 \ > RRA:MAX:0.5:12:1440 \ > RRA:AVERAGE:0.5:1:1440 > > the collection seems to be good except i'm lost some data!!!... If I'm not wrong, you have just created an RRD which hás just one sample, that is a GAUGE, and you collect 1440 points of the MIN and MAX value of each 12 samples. Each sample, you store the sample AVERAGE (which would be the same to put there a MAX and MIN, as you have only one value to average). Clarify one thing: give us na example of what you put in <my-time> in the line " DS:<my-obj>:GAUGE:<my-time>0:U \". You missed a semicolon there, between <my-time> (heartbeat) and the 0 (minimal accpetable variable). > if i do a rrdtool dump I can see min and max value from the starting > time, but avarage no, the first values are lost every 5 minutes, when > i do the rrdtool update! You have 4 sections (or 2, with the last divided in 3). Check out the end of the file, or whatch the ouput of "rrdtool info", as you'll see there an AVERAGE. > > the file size is always the same and it doesn't increase! That happens with all the RRDs that aren't resized. > when i'm creating graph i really want to use avarage values! but on > this way i think i will gona lost all this information! Only if you are putting samples with a step that is lower than step (300 in your case, which is default), and in this case you could put a smaller step, if you need. Or if you don't update the RRD with samples in a period bigger than heartbeat (your <my-time>). > > Ciao > Francesco Adeus, Nuno Pereira _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
