I have some historical time series data. The data was collected approx. every 15 mins, I say approx. because the times are not exactly 15 mins to the second apart. In some cases there could be 10-15 seconds of delay between each of the 15 min collections. In some cases if a collection cycle was skipped a time entry less then 15 mins will occur. For example, data collected at 10:00:01, 10:15:07, 10:30:03, 10:45:11, 10:48:13, 10:51:12, 11:00:32.
I have created the following: rrdtool create test.rrd --start 1179721292 --step 900 DS:value:GAUGE:1830:-5:5000 RRA:LAST:0.5:1:672 RRA:AVERAGE:0.5:4:2160 I expected this to allow me to keep the actual measured value and the time the value was collected for 7 days and then the hourly average for the previous 90 days. I update test.rrd with the following: rrdtool update test.rrd 1179722192:0.359 rrdtool update test.rrd 1179723089:0.343 rrdtool update test.rrd 1179724001:0.329 rrdtool update test.rrd 1179724892:0.359 rrdtool update test.rrd 1179725797:0.36 rrdtool update test.rrd 1179726695:0.375 rrdtool update test.rrd 1179727604:0.36 rrdtool update test.rrd 1179728493:0.359 rrdtool update test.rrd 1179729394:0.375 rrdtool update test.rrd 1179730293:0.344 When I perform a rrdtool fetch the first data entry I get has a timestamp of 1179721800 this is not the date/time I passed in with the update. Is it not possible to collect/store and then graph time series data using the exact time the measurement was taken. Any help/guidance would be appreciated. Chris G. -- View this message in context: http://www.nabble.com/Problem-with-Time-series-data-entry-tf3943829.html#a11187269 Sent from the RRDTool - User mailing list archive at Nabble.com. _______________________________________________ rrd-users mailing list [email protected] https://lists.oetiker.ch/cgi-bin/listinfo/rrd-users
