I have a very strange problem, which most defently lies in a missed detail.
I created an RRD database which collects network traffic information from iptables (on a Linux box). Calling an rrdtool info on that database returns: filename = "/var/rrd/net_traffic_all" rrd_version = "0001" step = 300 last_update = 1008777480 ds[eth0_in].type = "COUNTER" ds[eth0_in].minimal_heartbeat = 600 ds[eth0_in].min = 0.0000000000e+00 ds[eth0_in].max = NaN ds[eth0_in].last_ds = "170528" ds[eth0_in].value = 3.6811147541e+03 ds[eth0_in].unknown_sec = 0 ds[eth0_out].type = "COUNTER" ds[eth0_out].minimal_heartbeat = 600 ds[eth0_out].min = 0.0000000000e+00 ds[eth0_out].max = NaN ds[eth0_out].last_ds = "0" ds[eth0_out].value = 0.0000000000e+00 ds[eth0_out].unknown_sec = 0 ds[eth1_in].type = "COUNTER" ds[eth1_in].minimal_heartbeat = 600 ds[eth1_in].min = 0.0000000000e+00 ds[eth1_in].max = NaN ds[eth1_in].last_ds = "1673281" ds[eth1_in].value = 0.0000000000e+00 ds[eth1_in].unknown_sec = 0 ds[eth1_out].type = "COUNTER" ds[eth1_out].minimal_heartbeat = 600 ds[eth1_out].min = 0.0000000000e+00 ds[eth1_out].max = NaN ds[eth1_out].last_ds = "1206122" ds[eth1_out].value = 0.0000000000e+00 ds[eth1_out].unknown_sec = 0 ... rra[0].cf = "AVERAGE" rra[0].rows = 2000 rra[0].pdp_per_row = 3 rra[0].xff = 5.0000000000e-01 rra[0].cdp_prep[0].value = 5.8756284153e+01 rra[0].cdp_prep[0].unknown_datapoints = 0 rra[0].cdp_prep[1].value = 0.0000000000e+00 rra[0].cdp_prep[1].unknown_datapoints = 0 rra[0].cdp_prep[2].value = 3.8733333333e+00 rra[0].cdp_prep[2].unknown_datapoints = 0 rra[0].cdp_prep[3].value = 4.9666666667e+00 rra[0].cdp_prep[3].unknown_datapoints = 0 ... When calling an RRDTOOL GRAPH with /usr/local/rrdtool-1.0.33/bin/rrdtool graph /www/net.gif --start -6000 DEF:incoming=/var/rrd/net_traffic_all:eth0_in:AVERAGE LINE1:incoming generates an empty pic (time is there, but no line). Any idea? Thanks a lot for the help reto -- Unsubscribe mailto:[EMAIL PROTECTED] Help mailto:[EMAIL PROTECTED] Archive http://www.ee.ethz.ch/~slist/rrd-users WebAdmin http://www.ee.ethz.ch/~slist/lsg2.cgi
