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Hi,<br><br>I'm having problems with some of my rrd's because all the PDP's are nans eventhough the values which go into each PDP are present at the required 60 second intervals. A few values may come in slightly over the 60 seconds, but I have set the heartbeat 120, so as long as there is data within this time, I would have expected to get a PDP. Can anyone see where I'm going wrong?<br><br>Many thanks,<br><br>Ed.<br><br>This is the info for one of the rrd's:<br><br>filename = "Windows_Memory_Paging_Usage.rrd"<br>rrd_version = "0003"<br>step = 60<br>last_update = 1196244176<br>ds[MEMmmPgsInptPrSc].type = "GAUGE"<br>ds[MEMmmPgsInptPrSc].minimal_heartbeat = 120<br>ds[MEMmmPgsInptPrSc].min = NaN<br>ds[MEMmmPgsInptPrSc].max = NaN<br>ds[MEMmmPgsInptPrSc].last_ds = "UNKN"<br>ds[MEMmmPgsInptPrSc].value = 0.0000000000e+00<br>ds[MEMmmPgsInptPrSc].unknown_sec = 56<br>ds[MEMmmPgsOtptPrSc].type = "GAUGE"<br>ds[MEMmmPgsOtptPrSc].minimal_heartbeat = 120<br>ds[MEMmmPgsOtptPrSc].min = NaN<br>ds[MEMmmPgsOtptPrSc].max = NaN<br>ds[MEMmmPgsOtptPrSc].last_ds = "UNKN"<br>ds[MEMmmPgsOtptPrSc].value = 0.0000000000e+00<br>ds[MEMmmPgsOtptPrSc].unknown_sec = 56<br>rra[0].cf = "AVERAGE"<br>rra[0].rows = 26352<br>rra[0].pdp_per_row = 5<br>rra[0].xff = 5.0000000000e-01<br>rra[0].cdp_prep[0].value = NaN<br>rra[0].cdp_prep[0].unknown_datapoints = 2<br>rra[0].cdp_prep[1].value = NaN<br>rra[0].cdp_prep[1].unknown_datapoints = 2<br>rra[1].cf = "AVERAGE"<br>rra[1].rows = 8784<br>rra[1].pdp_per_row = 30<br>rra[1].xff = 5.0000000000e-01<br>rra[1].cdp_prep[0].value = NaN<br>rra[1].cdp_prep[0].unknown_datapoints = 2<br>rra[1].cdp_prep[1].value = NaN<br>rra[1].cdp_prep[1].unknown_datapoints = 2<br>rra[2].cf = "AVERAGE"<br>rra[2].rows = 4392<br>rra[2].pdp_per_row = 120<br>rra[2].xff = 5.0000000000e-01<br>rra[2].cdp_prep[0].value = NaN<br>rra[2].cdp_prep[0].unknown_datapoints = 2<br>rra[2].cdp_prep[1].value = NaN<br>rra[2].cdp_prep[1].unknown_datapoints = 2<br>rra[3].cf = "AVERAGE"<br>rra[3].rows = 1098<br>rra[3].pdp_per_row = 1440<br>rra[3].xff = 5.0000000000e-01<br>rra[3].cdp_prep[0].value = NaN<br>rra[3].cdp_prep[0].unknown_datapoints = 602<br>rra[3].cdp_prep[1].value = 1.0000000000e+00<br>rra[3].cdp_prep[1].unknown_datapoints = 600<br>rra[4].cf = "MAX"<br>rra[4].rows = 26352<br>rra[4].pdp_per_row = 5<br>rra[4].xff = 5.0000000000e-01<br>rra[4].cdp_prep[0].value = NaN<br>rra[4].cdp_prep[0].unknown_datapoints = 2<br>rra[4].cdp_prep[1].value = NaN<br>rra[4].cdp_prep[1].unknown_datapoints = 2<br>rra[5].cf = "MAX"<br>rra[5].rows = 8784<br>rra[5].pdp_per_row = 30<br>rra[5].xff = 5.0000000000e-01<br>rra[5].cdp_prep[0].value = NaN<br>rra[5].cdp_prep[0].unknown_datapoints = 2<br>rra[5].cdp_prep[1].value = NaN<br>rra[5].cdp_prep[1].unknown_datapoints = 2<br>rra[6].cf = "MAX"<br>rra[6].rows = 4392<br>rra[6].pdp_per_row = 120<br>rra[6].xff = 5.0000000000e-01<br>rra[6].cdp_prep[0].value = NaN<br>rra[6].cdp_prep[0].unknown_datapoints = 2<br>rra[6].cdp_prep[1].value = NaN<br>rra[6].cdp_prep[1].unknown_datapoints = 2<br>rra[7].cf = "MAX"<br>rra[7].rows = 1098<br>rra[7].pdp_per_row = 1440<br>rra[7].xff = 5.0000000000e-01<br>rra[7].cdp_prep[0].value = NaN<br>rra[7].cdp_prep[0].unknown_datapoints = 602<br>rra[7].cdp_prep[1].value = 5.0000000000e-01<br>rra[7].cdp_prep[1].unknown_datapoints = 600<br>rra[8].cf = "MIN"<br>rra[8].rows = 26352<br>rra[8].pdp_per_row = 5<br>rra[8].xff = 5.0000000000e-01<br>rra[8].cdp_prep[0].value = NaN<br>rra[8].cdp_prep[0].unknown_datapoints = 2<br>rra[8].cdp_prep[1].value = NaN<br>rra[8].cdp_prep[1].unknown_datapoints = 2<br>rra[9].cf = "MIN"<br>rra[9].rows = 8784<br>rra[9].pdp_per_row = 30<br>rra[9].xff = 5.0000000000e-01<br>rra[9].cdp_prep[0].value = NaN<br>rra[9].cdp_prep[0].unknown_datapoints = 2<br>rra[9].cdp_prep[1].value = NaN<br>rra[9].cdp_prep[1].unknown_datapoints = 2<br>rra[10].cf = "MIN"<br>rra[10].rows = 4392<br>rra[10].pdp_per_row = 120<br>rra[10].xff = 5.0000000000e-01<br>rra[10].cdp_prep[0].value = NaN<br>rra[10].cdp_prep[0].unknown_datapoints = 2<br>rra[10].cdp_prep[1].value = NaN<br>rra[10].cdp_prep[1].unknown_datapoints = 2<br>rra[11].cf = "MIN"<br>rra[11].rows = 1098<br>rra[11].pdp_per_row = 1440<br>rra[11].xff = 5.0000000000e-01<br>rra[11].cdp_prep[0].value = NaN<br>rra[11].cdp_prep[0].unknown_datapoints = 602<br>rra[11].cdp_prep[1].value = 5.0000000000e-01<br>rra[11].cdp_prep[1].unknown_datapoints = 600<br><br><br>This is an example of some of the raw data for one of the datasources:<br><br>head -30 NT_MEMORY##NT_MEMORY##MEMmmPgsInptPrSc.csv<br>1195985611,0.016667<br>1195985671,2.01667<br>1195985738,7.08955<br>1195985799,0<br>1195985859,0<br>1195985919,0.737705<br>1195985982,0<br>1195986043,0<br>1195986103,0<br>1195986163,0<br>1195986227,0<br>1195986288,0<br>1195986348,0<br>1195986408,0<br>1195986471,0<br>1195986531,0<br>1195986591,0<br>1195986651,0.655738<br>1195986716,0.015625<br>1195986776,0<br>1195986836,0.016393<br>1195986896,0<br>1195986961,0<br>1195987021,0<br>1195987081,0<br>1195987141,0<br>1195987206,0<br>1195987266,0<br>1195987327,0<br>1195987387,0.016667<br><br>which translates to the following times:<br><br>$ head -30 NT_MEMORY##NT_MEMORY##MEMmmPgsInptPrSc.csv | cut -d, -f1 | xargs -i s2d {}<br>Sun Nov 25 09:13:31 GMT 2007<br>Sun Nov 25 09:14:31 GMT 2007<br>Sun Nov 25 09:15:38 GMT 2007<br>Sun Nov 25 09:16:39 GMT 2007<br>Sun Nov 25 09:17:39 GMT 2007<br>Sun Nov 25 09:18:39 GMT 2007<br>Sun Nov 25 09:19:42 GMT 2007<br>Sun Nov 25 09:20:43 GMT 2007<br>Sun Nov 25 09:21:43 GMT 2007<br>Sun Nov 25 09:22:43 GMT 2007<br>Sun Nov 25 09:23:47 GMT 2007<br>Sun Nov 25 09:24:48 GMT 2007<br>Sun Nov 25 09:25:48 GMT 2007<br>Sun Nov 25 09:26:48 GMT 2007<br>Sun Nov 25 09:27:51 GMT 2007<br>Sun Nov 25 09:28:51 GMT 2007<br>Sun Nov 25 09:29:51 GMT 2007<br>Sun Nov 25 09:30:51 GMT 2007<br>Sun Nov 25 09:31:56 GMT 2007<br>Sun Nov 25 09:32:56 GMT 2007<br>Sun Nov 25 09:33:56 GMT 2007<br>Sun Nov 25 09:34:56 GMT 2007<br>Sun Nov 25 09:36:01 GMT 2007<br>Sun Nov 25 09:37:01 GMT 2007<br>Sun Nov 25 09:38:01 GMT 2007<br>Sun Nov 25 09:39:01 GMT 2007<br>Sun Nov 25 09:40:06 GMT 2007<br>Sun Nov 25 09:41:06 GMT 2007<br>Sun Nov 25 09:42:07 GMT 2007<br>Sun Nov 25 09:43:07 GMT 2007<br><br><br><br /><hr />Get closer to the jungle… <a href='http://entertainment.uk.msn.com/tv/realitytv/im-a-celebrity/' target='_new'>I'm a Celebrity Get Me 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