nobody can help ?
On Tue, Nov 5, 2013 at 12:44 PM, Konstantin <[email protected]> wrote: > I have noticed that rrdtool dump/fetch commands sometimes populate values > as NaN even if I have written updates several times to rrd (with different > timestamps). > > "lastupdate" command shows that value was successfully written, but whats > preventing it from being displayed? > > Please note, that I put single values into rrd few times a day, but the > resolution is 600 seconds. So most of the values will be NaN, but why I get > NaN for periods with updated values? > > here is the output: > # rrdtool lastupdate testrrd.rrd > 1383560879: 800.1103515625 > > # rrdtool fetch testrrd.rrd AVERAGE --start 1383559800 --end 1383565200 > 1383560400: -nan > 1383561000: -nan > 1383561600: -nan > 1383562200: -nan > 1383562800: -nan > 1383563400: -nan > 1383564000: -nan > 1383564600: -nan > 1383565200: -nan > 1383565800: -nan > > # rrdtool info testrrd.rrd > filename = "testrrd.rrd" > rrd_version = "0003" > step = 600 > last_update = 1383560879 > header_size = 792 > ds[testrrd].index = 0 > ds[testrrd].type = "GAUGE" > ds[testrrd].minimal_heartbeat = 86400 > ds[testrrd].min = NaN > ds[testrrd].max = NaN > ds[testrrd].last_ds = "800.1103515625" > ds[testrrd].value = 1.0164953906e+05 > ds[testrrd].unknown_sec = 0 > rra[0].cf = "AVERAGE" > rra[0].rows = 1095 > rra[0].cur_row = 1009 > rra[0].pdp_per_row = 144 > rra[0].xff = 5.0000000000e-01 > rra[0].cdp_prep[0].value = 4.6826486719e+04 > rra[0].cdp_prep[0].unknown_datapoints = 0 > rra[1].cf = "AVERAGE" > rra[1].rows = 1152 > rra[1].cur_row = 1014 > rra[1].pdp_per_row = 1 > rra[1].xff = 5.0000000000e-01 > rra[1].cdp_prep[0].value = NaN > rra[1].cdp_prep[0].unknown_datapoints = 0 >
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