On Wed, Apr 22, 2009 at 04:42:25PM -0700, Robert Hagens wrote: > I am new to RRD, but have spent about 12 hours struggling with this, so > I hope someone can help. > > I am creating an rrd > > /usr/bin/rrdtool create /tmp/ea.rrd --start 1240207200 --step 7200 > DS:ds:GAUGE:43200:0:100 RRA:LAST:0.5:1:100 > > And loading some data into it (I realize the values are all one) > > /usr/bin/rrdtool update /tmp/ea.rrd 1240246749:1 1240252503:1 > 1240259704:1 1240266904:1 1240274104:1 1240281305:1 1240288503:1 > 1240295704:1 1240302903:1 1240310104:1 1240317304:1 1240324504:1 > 1240331703:1 1240338903:1 1240346103:1 1240353304:1 1240360503:1 > 1240367704:1 1240374903:1 1240382104:1 1240389304:1 1240396503:1 > 1240403704:1 1240410904:1 > > Now, I just want to print the data out. I try > > /usr/bin/rrdtool graph /tmp/ea.rrd --start 20090420 > 'DEF:ds0=/tmp/ea.rrd:ds:LAST' 'PRINT:ds0:LAST:%2.2lf'
I'm not sure what you intend with that PRINT statement. I'm also not sure what it's doing. > And get > > 0x0 > 100.00 I can't reproduce that. I'm using 1.2.27 and it chokes on a start time that looks like a date. When I give it a start time from one of your updates, I see a single value of 1.0 (which seems reasonable). > I was expecting to get a list of values? If you want a list of values, use 'rrdfetch' instead. rrdtool fetch /tmp/ea.rrd LAST --start <start> --end <end> -- Darren _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
