Greetings all, I've been reading the documentation and some things dont make sense to me. Specifically the purpose of the RRA directive. I think this is where my current problem lies with what I am trying to accomplish.
Every night I have a counter of certain activities emailed to me; I'm trying to now have this graphed automagically, and by using RRDTool. I'm trying to, presently, store two values in a RRD database. Here is how I am initializing the DB with two values "sql" and "warns". rrdtool create /tmp/test.rrd --start <date in the past> --step 300 DS:sql:ABSOLUTE:300:0:U DS:warns:ABSOLUTE:300:0:U RRA:MAX:0.5:1:105120 From my understanding, the 300 is when it expects the next value; technically this should be 86400 but whenever I try to graph against this value I get segfaults. Anyways, I proceed to store the two values into test.rrd in a loop. The values "sql" and "warn" and integers. rrdtool update /tmp/test.rrd <time in the past of collected data>:$sql:$warn I then try to graph "sql" by executing rrdtool graph /tmp/test.gif --start end-1y --end 00:00 DEF:sql=/tmp/test.rrd:sql:MAX AREA:sql#333333:sql There's nothing in the graph at all. I then have tried dumping the values from the RRD file, only to see that there was nothing in them. The *only* way I have been able to get any success is with storing only *one* value in the RRD, but even then when I graph and dump the RRD I see that the values stored are totally incorrect as to what was entered when 'rrdtool update' was executed: rrdtool create /tmp/test.rrd --start <date in the past> --step 300 DS:sql:ABSOLUTE:86400:0:10000000 RRA:MAX:0.5:1:6000 $rrdtool update /tmp/test.rrd <time in the past of collected data>:$sql rrdtool graph /tmp/test.gif --start end-1y --end 00:00 DEF:sql=/tmp/test.rrd:sql:MAX AREA:sql#333333:sql What my end goal is that I wish to only store a couple of values per day, and then churn out the resulting graph with correct data. So, to the folks who have been using this tool for a long time, what am I doing incorrectly? Thanks! _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
