On Oct 15, 2010, at 12:02 AM, Simon Hobson wrote: > Marklar Inc. wrote: >> I really need help understanding this. Im trying to graph five >> values from 04-10-10 - 08-10-10 which is from Monday to Friday. >> >> When i do a rrdtool dump, is see the values are correct inserted >> from Monday to Friday. But when i graph it, it shows from Sunday to >> Thursday. >> One day to early. Im propably doing something wrong. >> >> The commands are listed below. >> >> Thanks. >> >> rrdtool create AAPL.rrd --step 86400 --start 1286107200 >> DS:open:GAUGE:86400:0:100000 RRA:LAST:0.5:1:1825 >> rrdtool update AAPL.rrd 1286193600:281.60 >> rrdtool update AAPL.rrd 1286280000:282.00 >> rrdtool update AAPL.rrd 1286366400:289.59 >> rrdtool update AAPL.rrd 1286452800:290.34 >> rrdtool update AAPL.rrd 1286539200:291.71 >> rrdtool graph AAPL.png --start 1286020800 --end 1286576091 --width >> 1600 --watermark "this is wierd" DEF:open=AAPL.rrd:open:LAST >> LINE1:open#000000 > > 1286576091 is about half past ten in the evening - so the day is not > complete and cannot be plotted as a value. The latest whole step > period ended at midnight (UTC) almost a day earlier. > > It's really, really a good idea to use start and end times which > exactly match the boundaries of the stored data buckets. Also note > that all times are relative to UTC, so if your timezone is +1, your > one day periods run from 1am to 1am local time. > > -- > Simon Hobson
I dont really understand the answer. What is the explaination that the graph plots its first value on sunday, when the dump clearly says that it is monday? _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
